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Search results “Oracle integer data types” for the 2016
11. CHAR, VARCHAR and TEXT Data Type in SQL (Hindi)
 
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Views: 28030 Geeky Shows
10. INT and DEC Data Type in SQL (Hindi)
 
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Views: 22922 Geeky Shows
Learn MySQL In Arabic #05 - Data Type - Numeric
 
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Learn about The Numeric Data Type in MySQL with Examples Int TinyInt SmallInt MediumInt BigInt Float Decimal Real BIt Boolean
Views: 16363 Elzero Web School
Data type - Integer & float
 
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Data type in C
Views: 98 Sam Hijazi
84. DECIMAL Data Type in SQL (Hindi)
 
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Views: 5893 Geeky Shows
Oracle CAST Function
 
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https://www.databasestar.com/oracle-cast/ The Oracle CAST function allows you to convert one data type to another. It’s similar to the TO_NUMBER, TO_DATE, and TO_CHAR functions, but allows for more functionality, including converting to many other data types. The syntax of the CAST function is: CAST( {expr | MULTISET (subquery) } AS type_name ) The structure of this function is different to other functions, because it uses the word AS to separate parameters rather than a comma. You can run this function like many other functions, on a single row, which would look like this: CAST( expr AS type_name ) Or, you can run it as though it’s a subquery, using the MULTISET feature: CAST( MULTISET (subquery) AS type_name ) The parameters of the CAST function are: - expr (mandatory choice): This is the value or expression that is to be converted to another data type. - MULTISET (optional): This keyword indicates that the subquery results will return multiple rows, and are then CAST into a collection value. If this is omitted, and the subquery returns multiple rows, it will only return a single row. - subquery (mandatory choice): This is the subquery that can be run to be converted into a collection data type. - type_name (mandatory): This is the Oracle data type that the expr or subquery will be converted to. There are several data types that are compatible with the CAST function, both for converting from and to. You can find the full list in the article mentioned below. For more information about the Oracle CAST function, including all of the SQL shown in this video and the examples, read the related article here: https://www.databasestar.com/oracle-cast/
Views: 1664 Database Star
9 - types of data types scalar data types - compound datatypes - special datatypes
 
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تعلم البرمجة المعتمدة على البيانات باستخدام ال php وال mysql باللغة العربية --------------------------------------------- practical study for concept of programming language based on data using php and mysql arabic ---------------------------------------------- Instructor : Ahmed Fathi email : [email protected] site : www.coderg.com ---------------------------------------- PHP Basics PHP Functions PHP Arrays PHP Object-Oriented PHP PHP Forms PHP Handling File Uploads PHP Session Handlers PHP Escaping to PHP PHP Comments PHP Output PHP Data types PHP Identifiers PHP Variables PHP Constants PHP Expressions PHP Control Structures PHP Functions PHP Invoking a Function PHP Creating a Function PHP Function Libraries PHP Outputting Arrays PHP Creating an Array PHP Operations on an Array PHP The Benefits of OOP PHP Key OOP Concepts PHP PHP and Web Forms PHP Handling Uploads with PHP PHP Session Handling?
Views: 560 Ahmed Fathi
SQL Tutorials #6: CAST and data types
 
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We cover CASTS and the change of data types in tSQL in general. Topics are: Implicit and explicit casts, different operator priorities.
Views: 324 SQL TV
Oracle ADD_MONTHS Function
 
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https://www.databasestar.com/oracle-add_months/ The Oracle ADD_MONTHS allows you to add a specified number of months to a date value, and return the new date value. It’s great for performing calculations on dates, or date arithmetic, which can be hard in many different programming languages. The syntax of the ADD_MONTHS function is: ADD_MONTHS ( input_date, number_months ) The function returns a DATE value. The parameters of this function are: - input_date (mandatory): This is the starting date, or the date that you will add a number of months to. - number_months (mandatory): This is an integer value that represents the number of months to add to input_date. The input_date can be any datetime value, or even a character value that can be converted to a date. Also, the number_months can be any number value, or a character value that can be converted to a number. What if the number of days in the two months are different? For example, adding a month to Jan 31 could result in Feb 31, which does not exist. Well, in this case, Oracle would work out that the date does not exist, and use the last date of the month (e.g. Feb 28). You can also provide a negative value for ADD_MONTHS to subtract months from the specified date. For more information about the Oracle ADD_MONTHS function, including all of the SQL shown in this video and the examples, read the related article here: https://www.databasestar.com/oracle-add_months/
Views: 322 Database Star
APEX programming for beginners: Primitive Data Types and Variables
 
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APEX programming for beginners: Primitive Data Types and Variables Become a salesforce developer:https://courses.mytutorialrack.com/p/salesforce-developer-training-for-beginners Checkout my website: http://mytutorialrack.com/ connect me on facebook: https://www.facebook.com/tutorialRack/ Follow me on twitter: https://twitter.com/mytutorialrack apex programming language, apex programming wiki, apex programming language tutorial, apex programming pdf, apex programming jobs, apex programming salesforce, apex programming course, apex programming best practices, apex afs programming, Primitive Data Types and Variables String Boolean and Conditional Statements Time, Date, and Datetime Integer, Long, Double and Decimal Null Variables Enums Summary Comments, Case Sensitivity, Collections and Loops Comments Case Sensitivity Arrays and Lists Loops Sets and Maps
Views: 24500 MyTutorialRack
Standard Scalar Data Types
 
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A Video on standard C++ data types and a description of each. Please visit www.parttimeadjunct.com
Views: 621 Alex Luy
Date and Time Functions in SQL SERVER Part I || CURRENT_TIMESTAMP and DATEADD
 
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This video will provide you the details of each Date and Time Data Types and Function in SQL Server 2014. I'll be walking through each and every kinds of build in function which are available in SQL Server in my next videos. Date and Time Data Types and Functions :-  CURRENT_TIMESTAMP (Transact-SQL) Returns the current database system timestamp as a datetime value without the database time zone offset. This value is derived from the operating system of the computer on which the instance of SQL Server is running. This function is the ANSI SQL equivalent to GETDATE.  Syntax CURRENT_TIMESTAMP  Arguments Takes no arguments.  Return Type Datetime  Remarks Transact-SQL statements can refer to CURRENT_TIMESTAMP anywhere they can refer to a datetime expression.CURRENT_TIMESTAMP is a nondeterministic function. Views and expressions that reference this column cannot be indexed. *********************************************************************  DATEADD (Transact-SQL) Returns a specified date with the specified number interval (signed integer) added to a specified datepart of that date.  Syntax DATEADD (datepart , number , date )  Arguments datepart Is the part of date to which an integernumber is added. The following table lists all valid datepart arguments. User-defined variable equivalents are not valid. datepart Abbreviations year yy, yyyy quarter qq, q month mm, m dayofyear dy, y day dd, d week wk, ww weekday dw, w hour hh minute mi, n second ss, s millisecond ms microsecond mcs nanosecond ns number Is an expression that can be resolved to an int that is added to a datepart of date. User-defined variables are valid. If you specify a value with a decimal fraction, the fraction is truncated and not rounded. date Is an expression that can be resolved to a time, date, smalldatetime, datetime, datetime2, or datetimeoffset value. date can be an expression, column expression, user-defined variable, or string literal. If the expression is a string literal, it must resolve to a datetime. To avoid ambiguity, use four-digit years. For information about two-digit years,  Return Types The return data type is the data type of the date argument, except for string literals. The return data type for a string literal is datetime. An error will be raised if the string literal seconds scale is more than three positions (.nnn) or contains the time zone offset part.  Return Value  datepart Argument dayofyear, day, and weekday return the same value. Each datepart and its abbreviations return the same value. If datepart is month and the date month has more days than the return month and the date day does not exist in the return month, the last day of the return month is returned. For example, September has 30 days; therefore, the two following statements return 2006-09-30 00:00:00.000: SELECT DATEADD(month, 1, '2006-08-30'); SELECT DATEADD(month, 1, '2006-08-31');  number Argument The number argument cannot exceed the range of int. In the following statements, the argument for number exceeds the range of int by 1. The following error message is returned: "Msg 8115, Level 16, State 2, Line 1. Arithmetic overflow error converting expression to data type int." SELECT DATEADD(year,2147483648, '2006-07-31'); SELECT DATEADD(year,-2147483649, '2006-07-31');  date Argument The date argument cannot be incremented to a value outside the range of its data type. In the following statements, the number value that is added to the date value exceeds the range of the date data type. The following error message is returned: "Msg 517, Level 16, State 1, Line 1 Adding a value to a 'datetime' column caused overflow." SELECT DATEADD(year,2147483647, '2006-07-31'); SELECT DATEADD(year,-2147483647, '2006-07-31');  Return Values for a smalldatetime date and a second or Fractional Seconds datepart The seconds part of a smalldatetime value is always 00. If date is smalldatetime, the following apply: • If datepart is second and number is between -30 and +29, no addition is performed. • If datepart is second and number is less than-30 or more than +29, addition is performed beginning at one minute. • If datepart is millisecond and number is between -30001 and +29998, no addition is performed. • If datepart is millisecond and number is less than -30001 or more than +29998, addition is performed beginning at one minute.
Views: 251 Softtech forum
Type Data String, Integer in PHP
 
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Writing and calling String Data Types and Data Type Integer. whatsapp: +62 85 63 65 63 07 email: [email protected] site: http://artmediatmojo.net
Views: 109 Art Media
Learn Java #4 - Data Types
 
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In this video we look at a variety of Data Types within Java including integer, double, boolean, char and String More info on Data types here: https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html
Views: 88 Lee Scott
Generating random string in Oracle
 
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Generating random string in Oracle About DBMS_RANDOM package The DBMS_RANDOM package will generate random data in character, numeric or alphanumeric formats. we can use this for generating the passwords also. we can generate strings in upper case, lower case or alphanumeric format. The first parameter for string type to be generated. U – Upper case L – Lower case A – Alphanumeric X – Alphanumeric with upper case alphabets. P – Printable characters only. 1)Generating an upper case string select dbms_random.string(‘U’, 10) from dual; 2)Generating a lower case string select dbms_random.string(‘L’, 10) from dual; 3)Generating an upper case alphanumeric string select dbms_random.string(‘X’, 10) from dual; 4)Generating a string of printable select dbms_random.string(‘P’, 10)from dual; For more tutorial please visit #techquerypond https://techquerypond.com https://techquerypond.wordpress.com https://twitter.com/techquerypond
Views: 258 Tech Query Pond
SQL Data Types for Various Data Bases Telugu | SQL DB Data Types-vlr training
 
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For all sql videos in Telugu :http://www.vlrtraining.in/sql-training-videos-telugu/ In Telugu: SQL Data Types for Various Data Bases Telugu SQL General Data Types MySQL tutorial SQL data types Understanding the data types in SQL Server Data types in SQL Server SQL DB Data Types Datatypes in SQL databases SQL Data Types SQL General Data Types Each column in a database table is required to have a name and a data type. SQL developers have to decide what types of data will be stored inside each and every table column when creating a SQL table. The data type is a label and a guideline for SQL to understand what type of data is expected inside of each column, and it also identifies how SQL will interact with the stored data. In English: download sql study material Website: http://www.vlrtrain.in/2016/09/download-sql-files.html Learn SQL sql tutorial for beginners sql commands oracle sql tutorial sql tutorial advanced mysql tutorial sql tutorial video SQL Tutorial, Tutorials SQL
Views: 1351 VLR Training
Identifiers and Simple Types
 
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A very short explanation of identifiers and simple types like int, double, char, and bool
Views: 247 David Gaitros
Oracle CONCAT Function
 
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https://www.databasestar.com/oracle-concat/ The Oracle CONCAT function allows you to concatenate, or combine, string values together into a single string value. It’s a standard string manipulation technique in many languages, and SQL is no different. The syntax of this function is: CONCAT( string1, string2 ) The function returns both string values joined together, without a space or any other characters in between. The return value is the same as the first string parameter, which can be any of the string data types. One of the main drawbacks of this function is that it only allows for two strings to be combined, unlike other CONCAT functions in other languages. If you want to combine more than two strings together, you’ll need to have nested CONCAT functions, or use the double pipe character || which also concatenates strings. However, the advantage of CONCAT is that it allows for concatenation when using different character sets that don’t support the double pipe method. CONCAT and the double pipe method have similar performance, so that’s not an issue. For more information about the Oracle CONCAT function, including all of the SQL shown in this video and the examples, read the related article here: https://www.databasestar.com/oracle-concat/
Views: 584 Database Star
ORACLE || Pl/SQL Program how to read integers from keyboard
 
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ORACLE SQL- 8. double ampersand
 
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insead of repeating the same value always we can make it as a fixed value using double ampersand
Views: 895 Ban3 GaiN
Learn Oracle SQL : Ordering the Results of Your Queries (The ORDER BY Clause)
 
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http://bit.ly/oracle-sql-course | Get the complete course today. Learn Oracle SQL : Ordering the results of your queries (The ORDER BY clause): In this video, I explain how to use the ORDER BY clause to order or sort the results of your queries, and give you a couple of experience tips about using it. This is an excerpt of the course " Oracle SQL From Scratch " which you can get at a discounted price here: http://bit.ly/oracle-sql-course You can find additional Oracle SQL related articles and educational content in my blog here: http://standout-dev.com/
Views: 96 Oracle SQL
Working with Java Data Types in Oracle Java SE – Online Training Video Tutorial
 
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In this sample video, you will learn about various Java Data Types used in Oracle Java SE. From basics of constructers, to the uses and signature of constructer with live examples, this video tutorial will throw light on each and every important aspect of java data types. As this tutorial just reflects a small part of Oracle Java SE Online Training being conducted at MVA, please visit http://www.multisoftvirtualacademy.com/core-java-online-training.php to know more about this course.
Learn Oracle | How to Update a Table using SQL
 
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Pebbles present, Learn Oracle 10g with Step By Step Video Tutorials. Learn Oracle 10g Tutorial series contains the following videos : Learn Oracle - History of Oracle Learn Oracle - What is Oracle - Why do we need Oracle Learn Oracle - What is a Database Learn Oracle - What is Grid Computing Learn Oracle - What is Normalization Learn Oracle - What is ORDBMS Learn Oracle - What is RDBMS Learn Oracle - Alias Names, Concatenation, Distinct Keyword Learn Oracle - Controlling and Managing User Access (Data Control Language) Learn Oracle - Introduction to SQL Learn Oracle - Oracle 10g New Data Types Learn Oracle - How to Alter a Table using SQL Learn Oracle - How to Create a Package in PL SQL Learn Oracle - How to Create a Report in SQL Plus Learn Oracle - How to Create a Table using SQL - Not Null, Unique Key, Primary Key Learn Oracle - How to Create a Table using SQL Learn Oracle - How to Create a Trigger in PL SQL Learn Oracle - How to Delete Data from a Table using SQL Learn Oracle - How to Drop and Truncate a Table using SQL Learn Oracle - How to Insert Data in a Table using SQL Learn Oracle - How to open ISQL Plus for the first time Learn Oracle - How to Open SQL Plus for the First Time Learn Oracle - How to Update a Table using SQL Learn Oracle - How to use Aggregate Functions in SQL Learn Oracle - How to use Functions in PL SQL Learn Oracle - How to use Group By, Having Clause in SQL Learn Oracle - How to Use Joins, Cross Join, Cartesian Product in SQL Learn Oracle - How to use Outer Joins (Left, Right, Full) in SQL Learn Oracle - How to use the Character Functions, Date Functions in SQL Learn Oracle - How to use the Merge Statement in SQL Learn Oracle - How to use the ORDER BY Clause with the Select Statement Learn Oracle - How to use the SELECT Statement Learn Oracle - How to use the Transactional Control Statements in SQL Learn Oracle - How to use PL SQL Learn Oracle - Data Types in PL SQL Learn Oracle - Exception Handling in PL SQL Learn Oracle - PL SQL Conditional Logics Learn Oracle - PL SQL Cursor Types - Explicit Cursor, Implicit Cursor Learn Oracle - PL SQL Loops Learn Oracle - Procedure Creation in PL SQL Learn Oracle - Select Statement with WHERE Cause Learn Oracle - SQL Operators and their Precedence Learn Oracle - Using Case Function, Decode Function in SQL Learn Oracle - Using Logical Operators in the WHERE Clause of the Select Statement Learn Oracle - Using Rollup Function, Cube Function Learn Oracle - Using Set Operators in SQL Learn Oracle - What are the Different SQL Data Types Learn Oracle - What are the different types of Databases Visit Pebbles Official Website - http://www.pebbles.in Subscribe to our Channel – https://www.youtube.com/channel/UCNNjWVsQqaMYccY044vtHJw?sub_confirmation=1 Engage with us on Facebook at https://www.facebook.com/PebblesChennai Please Like, Share, Comment & Subscribe
Views: 161 Pebbles Tutorials
Java top Course : Getting To Know Primitive Data Types,The Byte Short Int And Long (Part7)
 
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Welcome to Java course.This video is i show Primitive Data Types in java using Intellij IDE.The cource will be continued in next videos. Any doubts can be asked in the comments below. Attachments: http://www114.zippyshare.com/d/xPd4tV68/267267/Lecture%2019%20-%20Getting%20To%20Know%20Primitive%20Data%20Types%20-%20The%20Byte%2c%20Short%2c%20Int%20And%20Long%20-%20Source%20code.zip Inellij Download Link: https://download-cf.jetbrains.com/idea/ideaIC-2016.3.exe jdk : http://www.oracle.com/technetwork/java/javase/downloads/index-jsp-138363.html jre : http://www.oracle.com/technetwork/java/javase/downloads/jre8-downloads-2133155.html
Views: 50 Techno Root
Smart Coding: Ep. 11 - Memory.
 
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In this episode, we investigate computer memory and use this to learn more about Java's data types. Reddit ► https://www.reddit.com/r/CoderTheTyler Twitter ► https://twitter.com/coderthetyler Facebook ► https://www.facebook.com/coderthetyler/ Google+ ► https://plus.google.com/u/0/104036828711619051405 GitHub ► https://github.com/CoderTheTyler If you were interested, adding 1 to a byte in Java doesn't actually yield -128. This is because, although Java explicity declares byte as a data type, any mathematical operation done on it will first convert it to an int. But if you take 128 and turn it into a byte, it will yield -128. Data types really aren't one of Java's strong points. Here are some helpful resources to expand your understanding of data types and computer memory: Oracle Java Doc "Primitive Data Types" https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html Java In A Nutshell "Primitive Data Types" http://docstore.mik.ua/orelly/java-ent/jnut/ch02_04.htm Math Is Fun "Binary Number System" https://www.mathsisfun.com/binary-number-system.html Math Is Fun "Binary to Decimal to Hexidecimal Converter" https://www.mathsisfun.com/binary-decimal-hexadecimal-converter.html Unicode Consortium "What is Unicode?" http://unicode.org/standard/WhatIsUnicode.html Java For Complete Beginners "Boolean Values" http://www.homeandlearn.co.uk/java/boolean_values.html The following include a more advanced discussion of computer memory and how Java's memory model works: TutorialsPoint "Computer - Memory" http://www.tutorialspoint.com/computer_fundamentals/computer_memory.htm Oracel "Understanding Memory Management" https://docs.oracle.com/cd/E13150_01/jrockit_jvm/jrockit/geninfo/diagnos/garbage_collect.html Oh yes. And those "switches" are levers from Minecraft. I'm sure you've heard of it, but check it out here if you haven't https://minecraft.net/ Intro music: Eric Skiff - All of Us http://ericskiff.com/music/ Outro music - My edited version of: Go Cart (Electronic Medium) by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1300006 Artist: http://incompetech.com/ Image sources https://docs.google.com/document/d/13ehzc30SnK9PTBj0OS6KjqGdXMjQcId1EHaqUOoDPMM/edit?usp=sharing
Views: 2474 CoderTheTyler
Strings in PL SQL Tutorial
 
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Subscribe for more PL SQL tutorials https://www.youtube.com/channel/UC7sbHUgN8FnJEZkEjvKTwJg String Function & Purpose 1 ASCII(x); Returns the ASCII value of the character x. 2 CHR(x); Returns the character with the ASCII value of x. 3 CONCAT(x, y); Concatenates the strings x and y and return the appended string. 4 INITCAP(x); Converts the initial letter of each word in x to uppercase and returns that string. 5 INSTR(x, find_string [, start] [, occurrence]); Searches for find_string in x and returns the position at which it occurs. 6 INSTRB(x); Returns the location of a string within another string, but returns the value in bytes. 7 LENGTH(x); Returns the number of characters in x. TUTORIALSPOINT Simply Easy Learning Page 59 8 LENGTHB(x); Returns the length of a character string in bytes for single byte character set. 9 LOWER(x); Converts the letters in x to lowercase and returns that string. 10 LPAD(x, width [, pad_string]) ; Pads x with spaces to left, to bring the total length of the string up to width characters. 11 LTRIM(x [, trim_string]); Trims characters from the left of x. 12 NANVL(x, value); Returns value if x matches the NaN special value (not a number), otherwise x is returned. 13 NLS_INITCAP(x); Same as the INITCAP function except that it can use a different sort method as specified by NLSSORT. 14 NLS_LOWER(x) ; Same as the LOWER function except that it can use a different sort method as specified by NLSSORT. 15 NLS_UPPER(x); Same as the UPPER function except that it can use a different sort method as specified by NLSSORT. 16 NLSSORT(x); Changes the method of sorting the characters. Must be specified before any NLS function; otherwise, the default sort will be used. 17 NVL(x, value); Returns value if x is null; otherwise, x is returned. 18 NVL2(x, value1, value2); Returns value1 if x is not null; if x is null, value2 is returned. 19 REPLACE(x, search_string, replace_string); Searches x for search_string and replaces it with replace_string. 20 RPAD(x, width [, pad_string]); Pads x to the right. 21 RTRIM(x [, trim_string]); Trims x from the right. 22 SOUNDEX(x) ; Returns a string containing the phonetic representation of x. 23 SUBSTR(x, start [, length]); Returns a substring of x that begins at the position specified by start. An optional length for the substring may be supplied. 24 SUBSTRB(x); Same as SUBSTR except the parameters are expressed in bytes instead of characters for the single-byte character systems. 25 TRIM([trim_char FROM) x); Trims characters from the left and right of x. 26 UPPER(x); Converts the letters in x to uppercase and returns that string.
Views: 299 Puzzle Guru
SQL CAST Function - how to use CAST Function
 
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SQL CAST function converts an expression from one datatype to another datatype. visit Dose for excel Add-In website: http://www.zbrainsoft.com/ Visit our channel: https://www.youtube.com/channel/UCI4bMWYzrBTs47KINXL92Kw
User Derived Data Types in XSD | XML Tutorial | Mr. Satish B
 
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** For Online Training Registration: https://goo.gl/r6kJbB ? Call: +91-8179191999 ? Visit Our Website for Classroom Training: https://nareshit.in/xml-training/ ? For Online Training: https://nareshit.com/course/xml-web-services-online-training/ #C# #.net #html #css #Tutorials #Training #Videos -------------------------- ? About NareshIT: "Naresh IT is having 14+ years of experience in software training industry and the best Software Training Institute for online training, classroom training, weekend training, corporate training of Hadoop, Salesforce, AWS, DevOps, Spark, Data Science, Python, Tableau, RPA ,Java, C#.NET, ASP.NET, Oracle, Testing Tools, Silver light, Linq, SQL Server, Selenium, Android, iPhone, C Language, C++, PHP and Digital Marketing in USA,Hyderabad, Chennai and Vijayawada,Bangalore India which provides online training across all the locations -------------------------- ? Our Online Training Features: 1.Training with Real-Time Experts 2.Industry Specific Scenario’s 3.Flexible Timings 4.Soft Copy of Material 5. Share Videos of each and every session. -------------------------- Please write back to us at [email protected]/[email protected] or Call us at USA: +1404-232-9879 or India: +918179191999 ** Check The Below Links** ? For Course Reg: https://goo.gl/r6kJbB ? Subscribe to Our Channel: https://goo.gl/q9ozyG ? Circle us on G+: https://plus.google.com/NareshIT ? Like us on Facebook: https://www.facebook.com/NareshIT ? Follow us on Twitter: https://twitter.com/nareshitech ? Follow us on Linkedin: https://in.linkedin.com/company/nares... ? Follow us on Instagram: https://www.instagram.com/nareshitech/
Views: 4449 Naresh i Technologies
Boolean Data Type
 
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Views: 117 iYezan
SQLAlchemy: Connecting to a database
 
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Learn how to connect to your database: https://www.datacamp.com/courses/introduction-to-relational-databases-in-python In the python world, there are several great tools that we can use when working with databases. One of those is SQLAlchemy that we will be using throughout this course. SQLAlchemy will allow us to generate SQL queries by writing Python code. You should still consider learning how to write queries in SQL as well. SQLAlchemy has two main components. The part we will be focusing on is often referred to as "core" part of SQLAlchemy. It's really focused around the relational model of the database. Additionally, there is the Object Relational Model or ORM part of SQLAlchemy that is really focused around data models and classes that you as a programmer create. There are many different types of databases, and each database type has its own quirks and unique capabilities. You'll commonly find SQLite, PostgreSQL, MySQL, Microsoft SQL Server, and Oracle when working with data. SQLAlchemy provides a way to operate across all of these database types in a consistent manner. To connect to a database, we need a way to talk to it, and an engine provides that common interface. To create an engine, we import the create_engine function from sqlalchemy; we then use the create_engine function and supply it a connection string that provides the details needed to connect to a database. Finally once we have an engine, we are ready to make a connection using the connect method on the engine. It's worth noting that SQLAlchemy won't actually make the connection until we give it some work to execute. So to review, an engine is the common interface to the database, which requires a connection string to provide the details used to find and connect to the database. Before we go any further, let's talk a bit more about connection strings. In their simplest form, they tell us what kind of database we are talking to and how we should access it. In this example, you can see that we are using the sqlite database driver and the database file named census_nyc.sqlite which is in the current directory. Now that we have an engine and a connection, we need to know what tables are in the database. We'll start again by importing the create_engine function and creating an engine to our database. Finally, We can use the table_names method of the engine which returns a list of tables. Once we know what table we want to work on, we need a way to access that table with python. To do that we are going to use a handy process called reflection, which reads the database and builds a Table object that we can use in our code. We already have created our engine, so we begin by importing the MetaData and Table objects needed for reflection. The MetaData object is a catalog that stores database information such as tables so we don't have to keep looking them up. To reflect the table, we initialize a MetaData object. Next, we use the SQLAlchemy Table object and provide the table name we got earlier from the table_names method. We also supply our metadata instance, and then instruct it to autoload the table using the engine. Finally, we can use the function repr to view the details of our table that we stored as census. This allows us to see the names of the columns, such as 'state' and 'sex', along with their types, such as VARCHAR and INTEGER. This process of reflection may seem a bit of an overhead, but it will make understanding your databases and extracting information from them far easier downstream. Now it's your turn to practice writing connection strings, connecting to databases and reflecting tables. Then we'll be back here writing our first SQL queries.
Views: 28191 DataCamp
Oracle11g SQL Tutorial 4 literal string & quote operator
 
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This SQL tutorial for beginners will show you the using of literal string & quote operator If you want SQL certified you can use these tutorials. Other tutorials: https://youtu.be/Y9qpuKPkYPE https://youtu.be/4mVRA7Bl_00 https://youtu.be/Gn8y6zsCoLQ https://youtu.be/UENDBv8PLbk https://youtu.be/gpVjyubjE0I https://youtu.be/mC9VL_PZ8Bo https://youtu.be/3Df7LCx5wKQ https://youtu.be/O3819K3IYJk
Views: 357 IT WORLD
String Functions in SQL Server part-II || SOUNDEX, DIFFERENCE, LEFT, LEN, LOWER, LTRIM in SQL
 
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This video will provide you the details of each string functions in SQL Server 2014. I'll be walking through each and every kinds of build in function which are available in SQL Server in my next videos. Previous video for more String Functions https://www.youtube.com/watch?v=6cgn44DZ7w8 ******************************************************************************* SOUNDEX (Transact-SQL) Returns a four-character (SOUNDEX) code to evaluate the similarity of two strings. The SOUNDEX() returns a four digit code for a varchar value passed to it. The same code is returned for all those names whose pronunciation is similar.  Syntax -- Syntax for SQL Server, Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse SOUNDEX ( character_expression )  Arguments character_expression Is an alphanumeric expression of character data. character_expression can be a constant, variable, or column.  Return Types Varchar ******************************************************************************* DIFFERENCE (Transact-SQL) Returns an integer value that indicates the difference between the SOUNDEX values of two character expressions.  Syntax -- Syntax for SQL Server, Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse DIFFERENCE ( character_expression , character_expression )  Arguments character_expression Is an alphanumeric expression of character data. character_expression can be a constant, variable, or column.  Return Types int ******************************************************************************* LEFT (Transact-SQL) Returns the left part of a character string with the specified number of characters.  Syntax -- Syntax for SQL Server, Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse LEFT ( character_expression , integer_expression )  Arguments character_expression Is an expression of character or binary data. character_expression can be a constant, variable, or column. character_expression can be of any data type, except text or ntext, that can be implicitly converted to varchar or nvarchar. Otherwise, use the CAST function to explicitly convertcharacter_expression. integer_expression Is a positive integer that specifies how many characters of the character_expression will be returned. If integer_expression is negative, an error is returned. If integer_expression is type bigint and contains a large value, character_expression must be of a large data type such as varchar(max).  Return Types Returns varchar when character_expression is a non-Unicode character data type. Returns nvarchar when character_expression is a Unicode character data type. ******************************************************************************* LEN (Transact-SQL) Returns the number of characters of the specified string expression, excluding trailing blanks.  Syntax -- Syntax for SQL Server, Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse LEN ( string_expression )  Arguments string_expression Is the string expression to be evaluated. string_expression can be a constant, variable, or column of either character or binary data.  Return Types bigint if expression is of the varchar(max), nvarchar(max) or varbinary(max) data types; otherwise, int. ******************************************************************************* LOWER (Transact-SQL) Returns a character expression after converting uppercase character data to lowercase.  Syntax -- Syntax for SQL Server, Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse LOWER ( character_expression )  Arguments character_expression Is an expression of character or binary data. character_expression can be a constant, variable, or column. character_expression must be of a data type that is implicitly convertible to varchar. Otherwise, use CAST to explicitly convert character_expression.  Return Types varchar or nvarchar ******************************************************************************* LTRIM (Transact-SQL) Returns a character expression after it removes leading blanks.  Syntax -- Syntax for SQL Server, Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse LTRIM ( character_expression )  Arguments character_expression Is an expression of character or binary data. character_expression can be a constant, variable, or column. character_expression must be of a data type, except text, ntext, and image, that is implicitly convertible to varchar. Otherwise, use CAST to explicitly convert character_expression.  Return Type varchar or nvarchar
Views: 280 Softtech forum
String Functions in SQL Server part-V || SPACE, STR, STUFF, SUBSTRING functions in SQL
 
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This video will provide you the details of each string functions in SQL Server 2014. I'll be walking through each and every kinds of build in function which are available in SQL Server in my next videos. Previous video for more String Functions String Function Part I https://www.youtube.com/watch?v=6cgn4... String Function Part II https://www.youtube.com/watch?v=RmyT8... String Function Part III https://www.youtube.com/watch?v=lQVnQ... String Function Part IV https://www.youtube.com/watch?v=cxASmU2hxjc ***************************************************************************************** SPACE (Transact-SQL) Returns a string of repeated spaces.  Syntax SPACE ( integer_expression )  Arguments integer_expression Is a positive integer that indicates the number of spaces. If integer_expression is negative, a null string is returned.  Return Types varchar STR (Transact-SQL) Returns character data converted from numeric data.  Syntax STR ( float_expression [ , length [ , decimal ] ] )  Arguments float_expression Is an expression of approximate numeric (float) data type with a decimal point. length Is the total length. This includes decimal point, sign, digits, and spaces. The default is 10. decimal Is the number of places to the right of the decimal point. decimal must be less than or equal to 16. If decimal is more than 16 then the result is truncated to sixteen places to the right of the decimal point.  Return Types varchar STUFF (Transact-SQL) The STUFF function inserts a string into another string. It deletes a specified length of characters in the first string at the start position and then inserts the second string into the first string at the start position.  Syntax STUFF ( character_expression , start , length , replaceWith_expression )  Arguments character_expression Is an expression of character data. character_expression can be a constant, variable, or column of either character or binary data. start Is an integer value that specifies the location to start deletion and insertion. If start or length is negative, a null string is returned. If start is longer than the first character_expression, a null string is returned. start can be of type bigint. length Is an integer that specifies the number of characters to delete. If length is longer than the first character_expression, deletion occurs up to the last character in the last character_expression. length can be of type bigint. replaceWith_expression Is an expression of character data. character_expression can be a constant, variable, or column of either character or binary data. This expression will replace length characters of character_expression beginning at start.  Return Types Returns character data if character_expression is one of the supported character data types. Returns binary data if character_expression is one of the supported binary data types. SUBSTRING (Transact-SQL) Returns part of a character, binary, text, or image expression in SQL Server.  Syntax SUBSTRING ( expression ,start , length )  Arguments expression Is a character, binary, text, ntext, or imageexpression. start Is an integer or bigint expression that specifies where the returned characters start. If start is less than 1, the returned expression will begin at the first character that is specified in expression. In this case, the number of characters that are returned is the largest value of either the sum of start + length- 1 or 0. If start is greater than the number of characters in the value expression, a zero-length expression is returned. length Is a positive integer or bigint expression that specifies how many characters of the expression will be returned. If length is negative, an error is generated and the statement is terminated. If the sum of start and length is greater than the number of characters in expression, the whole value expression beginning at start is returned.  Return Types Returns character data if expression is one of the supported character data types. Returns binary data if expression is one of the supported binary data types. The returned string is the same type as the specified expression with the exceptions shown in the table. Specified expression Return type char/varchar/text varchar nchar/nvarchar/ntext nvarchar binary/varbinary/image varbinary
Views: 63 Softtech forum
SQL Server Data Type - Tiny Int (English)
 
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I created this video with the YouTube Video Editor (https://www.youtube.com/editor)
Views: 52 farid shaik
COL9: Working with String-indexed Associative Arrays
 
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One of my favorite features of associative arrays is the ability to index by string, in addition to integer. You can have all sorts of fun! This video was taken from PLSQLChannel.com, originally recorded before Steven Feuerstein re-joined Oracle in March 2014. ======================================== Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the ?Materials?). The Materials are provided ?as is? without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
amazon online test : data engineer
 
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Amazon conducts this written test to check the proficiency of candidates in PL/SQL. These questions are purely subjective and can be useful for various openings such as INFORMATICA DEVELOPER, PL/SQL DEVELOPER etc.
Views: 38138 anmol14
SQL DAY() Function
 
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The SQL DAY() is a function, and return or extract the day value portion or day of the month (a whole integer number from 1 to 31) of a given input date value.
Views: 114 suresh babu
SQL Server Data Type - Tiny Int (Hindi)
 
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I created this video with the YouTube Video Editor (https://www.youtube.com/editor)
Views: 29 farid shaik
Oracle || Oracle  DDL & DML Cammands Part-2  by Siva
 
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DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS , ADF, INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo............
Oracle || PL/SQL Inputs and Output by Siva
 
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DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS , ADF, INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo............
06 - Primitive Data Types | Java Tutorials
 
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Learn how to initialize / store data in your variables as well as how to use the 8 primitive data types in java. | Language Java (.java /.class) | Code Example https://github.com/simply-coded/Java-Tutorials | Support https://www.paypal.me/JeremyE
Views: 1637 SimplyCoded
COL8: Non-Sequential Indexing in Associative Arrays
 
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This lesson explores how to take advantage of the wide range of integer index values and the possible sparseness of associative arrays to construct and use non-sequentially filled collections. This video was taken from PLSQLChannel.com, originally recorded before Steven Feuerstein re-joined Oracle in March 2014. ======================================== Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Oracle SQL Developer Tutorial For Beginners  84   SELECT EVERYTHING
 
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Oracle SQL Developer Tutorial For Beginners Series. This course introduces Oracle SQL Development for its subscribers. Currently this is based on Oracle 12c. The test environment is in Windows 10.
Views: 620 Sam Dhanasekaran
User Guide: Objects vs Object Types & Value Lists
 
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A brief description of the differences between objects, object types, and value lists in M-Files
Mathematical Functions in SQL SERVER Part I || ABS, CEILING, FLOOR, POWER functions in SQL 2014
 
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This video will provide you the details of each Mathematical Function in SQL Server 2014. ***********************************************************************  ABS (Transact-SQL) A mathematical function that returns the absolute (positive) value of the specified numeric expression.  Syntax ABS ( numeric_expression )  Arguments numeric_expression Is an expression of the exact numeric or approximate numeric data type category.  Return Types Returns the same type as numeric_expression.  Examples The following example shows the results of using the ABS function on three different numbers. SELECT ABS(-1.0), ABS(0.0), ABS(1.0); Here is the result set. ---- ---- ---- 1.0 .0 1.0 The ABS function can produce an overflow error when the absolute value of a number is greater than the largest number that can be represented by the specified data type. For example, the int data type can hold only values that range from -2,147,483,648 to 2,147,483,647. Computing the absolute value for the signed integer -2,147,483,648 causes an overflow error because its absolute value is greater than the positive range for the int data type. DECLARE @i int; SET @i = -2147483648; SELECT ABS(@i); ***********************************************************************  CEILING (Transact-SQL) Returns the smallest integer greater than, or equal to, the specified numeric expression.  Syntax CEILING ( numeric_expression )  Arguments numeric_expression Is an expression of the exact numeric or approximate numeric data type category, except for the bit data type.  Return Types Returns the same type as numeric_expression.  Examples The following example shows positive numeric, negative, and zero values with the CEILING function. SELECT CEILING($123.45), CEILING($-123.45), CEILING($0.0); GO ***********************************************************************  FLOOR (Transact-SQL) Returns the largest integer less than or equal to the specified numeric expression.  Syntax FLOOR ( numeric_expression )  Arguments numeric_expression Is an expression of the exact numeric or approximate numeric data type category, except for the bit data type.  Return Types Returns the same type as numeric_expression.  Examples The following example shows positive numeric, negative numeric, and currency values with the FLOOR function. SELECT FLOOR(123.45), FLOOR(-123.45), FLOOR($123.45); ***********************************************************************  POWER (Transact-SQL) Returns the value of the specified expression to the specified power.  Syntax POWER ( float_expression , y )  Arguments float_expression Is an expression of type float or of a type that can be implicitly converted to float. y Is the power to which to raise float_expression. y can be an expression of the exact numeric or approximate numeric data type category, except for thebit data type.  Return Types Returns the same type as submitted in float_expression. For example, if a decimal(2,0) is submitted as float_expression, the result returned isdecimal(2,0).  Examples A. Using POWER to return the cube of a number The following example demonstrates raising a number to the power of 3 (the cube of the number). DECLARE @input1 float; DECLARE @input2 float; SET @input1= 2; SET @input2 = 2.5; SELECT POWER(@input1, 3) AS Result1, POWER(@input2, 3) AS Result2;
Views: 81 Softtech forum
data type | data type casting |  Robust Coders
 
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Data Type - Based on the data type of a variable, the operating system allocates memory and decides what can be stored in the reserved memory. Therefore, by assigning different data types to variables, you can store integers, floating type values , or characters in these variables. So its all about the memory allocation of the particular variable. Data types represent the different values to be stored in the variable . In java, there are two types of data types: Primitive data types Non-primitive data types or Reference Data types In Primitive data types there are 8 data types. like- byte,short,int,loang float,double,boolean,char In reference data type there are variaous data types like- class,array,enum,interface etc. Now Data type casting- converting one data type to another either implicitly or explicitly. Java data type casting comes with 3 types. Implicit casting Explicit casting Boolean casting. 1. Implicit casting (widening conversion) A data type of lower size (occupying less memory) is assigned to a data type of higher size. This is done implicitly by the JVM. The lower size is widened to higher size. This is also named as automatic type conversion. 2. Explicit casting (narrowing conversion) A data type of higher size (occupying more memory) cannot be assigned to a data type of lower size. This is not done implicitly by the JVM and requires explicit casting; a casting operation to be performed by the programmer. The higher size is narrowed to lower size. 3. Boolean casting It is very important thing to understand about boolean data type and their casting. So ,A boolean value cannot be assigned to any other data type. Except boolean, all the remaining 7 data types can be assigned to one another either implicitly or explicitly; but boolean cannot. We say, boolean is incompatible for conversion. Maximum we can assign a boolean value to another boolean. created by- rajeev sir visit - [email protected] www.javaexpert.co.in
Views: 281 Robust Coders
MySQL 13 - Domain Integrity
 
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This video will introduce domain integrity. It would be helpful first to know what domain means. In the context of software development, domain defines what kind of data is expected or allowed. This may be tied to what is known as business rules. Business rules are the rules that say what the database is supposed to allow and not allow. There is a fine line between business rules and domain integrity, so let's go in a little more detail. A business rule is given in a spoken language, such as English. It is a non-technical way of describing what the data is supposed to be. For example, we could say that the business rule for a certain column is that it is supposed to store a salary. This business rule could then be described technically as a column that stores only integers. The technical requirement described would be the domain. Domain integrity means that all of the data in a column with business rules is of the right format and has appropriate content. We can go a step further and say that row has to have a value (NOT NULL) or has to be UNIQUE. How do we acquire data integrity? There are a few ways. The first is with a data type. This is the easiest way to restrict certain types of data. What is a data type? Looking at the word it becomes quite clear. The data type is the type of data. You have to select a data type for each column in a database. The important classifications of data types are numeric, string, and date. In MySQL, an example of a data type is INT. By giving a column this data type, you can force the data to be a number. The second way is with constraints. Using constraints, we could force every row to have a salary, or we could say all of the salaries have to be unique (which sounds like a dumb idea). In some databases we can even get more specific in our domain using what is known as a check constraint. This allows us to do fancy stuff like forcing every salary to be within a certain range. Unfortunately, MySQL does not support these. There are ways to emulate them. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 5575 Caleb Curry
backup oracle database with timer
 
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this video will help you, how to backup your oracle database automatically
Views: 45 ahmad shah zahid