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NULL Value in Oracle Database | Oracle Tutorials for Beginners
 
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NULL Value in Oracle Database | Oracle Tutorials for Beginners NULL Value in Oracle Database NULL Value in Oracle SQL NULL Value in SQL NULL Value in Oracle Database Oracle Tutorials for Beginners Oracle Tutorials for Beginners Oracle PL/SQL Tutorials for Beginners Oracle PL/SQL Tutorials for Beginners Oracle PL/SQL Tutorials for Beginners how to select null values in oracle oracle compare null values in where clause null=null in oracle how to handle null in case statement in oracle how to check null value in oracle stored procedure oracle nvl null value in oracle query how to check empty column value in oracle how to select null values in oracle oracle is null vs = null oracle nvl oracle is not null oracle decode oracle isnull oracle case when null select null from table in oracle oracle compare null values in where clause oracle select null how to check empty column value in oracle oracle sql not null or empty oracle is not null how to handle null in case statement in oracle oracle isnull oracle nvl
Views: 789 Oracle PL/SQL World
Oracle interview question difference between null functions
 
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Difference between NVL,NVL2, NULLIF and COALESCE NVL function will check whether the first input parameter is null, if first input parameter is null then the function returns the second parameter value as output. NVL2 function will check the first parameter, and return second parameter if the first parameter is not null, otherwise returns third parameter. NULLIF will compare the input parameters ( first and second parameter ), and returns NULL of both are same, otherwise returns the first parameter value. COALESCE, returns the first not null expression in the given input parameters. -------------------------------------------------------------------------------------------------------- List of all the SQL and PLSQL interview questions https://easy-learning-tech.blogspot.com/p/oracle-sql-plsql-interview-questions.html
Views: 1462 Siva Academy
SQL Null or Empty   How to Check for Null or Empty Column in SQL Server   SQL Training Online
 
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http://www.sqltrainingonline.com SQL Null or Empty - How to Check for Null or Empty Column in SQL Server - SQL Training Online You can download the sample table script at http://www.sqltrainingonline.com/how-to-filter-for-sql-null-or-empty-string/. In this video, I show you how to filter for a SQL null or empty string. It can be difficult to filter a null because you can't simply compare with an equal sign. You have to use a special IS NULL clause to make the filter work. I also show you how to combine both the SQL Null and Empty String together in a special trick with the isnull SQL Server function. I use SQL Server 2012 to demonstrate the technique. Let me know what you think by commenting or sharing on twitter, facebook, google+, etc. If you enjoy the video, please give it a like, comment, or subscribe to my channel. You can visit me at any of the following: SQL Training Online: http://www.sqltrainingonline.com Twitter: http://www.twitter.com/sql_by_joey Google+: https://plus.google.com/#100925239624117719658/posts LinkedIn: http://www.linkedin.com/in/joeyblue Facebook: http://www.facebook.com/sqltrainingonline
Views: 19254 Joey Blue
Differences between ISNULL and NULLIF - sql server interview questions
 
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Hi friends, in this session I am gonna discuss the differences between ISNULL and NULLIF. Both ISNULL and NULLIF are built in system functions in sql server. Lot of people get confused between these 2 system functions. Lets discuss about each of these system functions separately so that you will get better idea. 1st lets discuss about ISNULL. ISNULL: ISNUL is a system function which replaces NULL with the specified replacement value. The functionalityof ISNULL is : 1. 1st it will Evaluate the expression which is in parameter 1. 2. it will compare the evaluated expression with null. if the paramter 1 = NULL ? 3. If parameter1 is equal to null i.e., if parameter 1 is null, then isnull function returns replacement value. if parameter1is not NULL, then ISNULL function returns parameter1 I hope we are clear on ISNULL. Lets move on to the next system function, that is NULLIF. NULLIF: NULLIF is a system function which returns a null value if the two specified expressions are equal. The functionalityof NULLIF is : 1. 1st it will Evaluate both the expression which are in parameter 1 and parameter 2. 2. next it will compare both the evaluated expressions with null. 3. If both the expressions are equal, the nullif functions returns NULL. 4. If both the expressions are not equal, the nullif functions returns 1st expression. Lets conclude the discussion with the similarities and differences between ISNULL and NULLIF Similarities: Both ISNULL and NULLIF are system functions. Syntax for Both the functions are similar Both ISNULL and NULLIF functions accepts 2 input parameters. Differences: isnull function compares 1st parameter with null.where as nullif function compares 1st parameter with 2nd parameter ISNULL function returns 2nd paramter if the 1st parameter isnull. nullif function returns null is 1st parameter = 2nd paramter. ISNULL function returns 1st paramter if the 1st parameter is not null. nullif function returns 1st paramter if 1st parameter is not equal to 2nd paramter. Thanks for watching this video. Bye , Have a good Day
Views: 7811 TheSSScreations
Replace Null Value and Coalesce function in SQL Hindi Lesson 33
 
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In this video we will learn how to replace null value using Isnull function, Coalesce function and case statement.
Views: 1206 Vijay Mulsaniya
Introduction to NULLIF, ISNULL, and COALESCE in SQL Server 2005/2008
 
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This video is part of LearnItFirst's Writing Queries for SQL Server (2005/2008 Edition) course. More information on this video and course is available here: http://www.learnitfirst.com/Course160 In the previous video Scott highlighted the three different ways to deal with NULLs in expressions. In this video each of these different methods, NULLIF, ISNULL, and COALESCE will be detailed and demonstrated. Highlights from this video: - NULLIF - ISNULL - COALESCE - Syntax - Difference between COALESCE and ISNULL and much more...
Views: 18148 LearnItFirst.com
26. IS NULL and IS NOT NULL in SQL (Hindi)
 
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Please Subscribe Channel Like, Share and Comment Visit : www.geekyshows.com
Views: 23334 Geeky Shows
Tutorial#27 How  NULL value treated in Oracle SQL Database|IS NULL Operator
 
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Online SQL tutorial , explaining about the different ways to treats NULL values in Oracle SQL server or How we can replace null values with some other values using IS NULL Operator or Different ways to replace NULL in SQL server IS NULL and IS NOT NULL in SQL or IS NULL Operator in SQL Query with Example orHow to Check for Null or Empty Column in SQL or Problems with Null Value in SQL or is NOT NULL, IS NULL, NVL FUNCTION in Oracle SQL or How can I find unknown values? orHow to convert null to 0 in SQL server orNull value in Oracle or replacing NULL in SQL In this series we cover the following topics: SQL basics, create table oracle, SQL functions, SQL queries, SQL server, SQL developer installation, Oracle database installation, SQL Statement, OCA, Data Types, Types of data types, SQL Logical Operator, SQL Function,Join- Inner Join, Outer join, right outer join, left outer join, full outer join, self-join, cross join, View, SubQuery, Set Operator. follow me on: Facebook Page: https://www.facebook.com/LrnWthr-319371861902642/?ref=bookmarks Contacts Email: [email protected] Instagram: https://www.instagram.com/lrnwthr/ Twitter: https://twitter.com/LrnWthR
Views: 143 EqualConnect Coach
Oracle Tutorial - is NULL and is NOT NULL
 
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Oracle Tutorials - is NULL and is NOT NULL
Views: 180 Tech Acad
Joining on NULL values in SQL Server
 
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SQL Server prevents rows from being joined together using the regular join syntax if the column values contain NULLs. In today's episode I show you a couple of different ways to fix that. Subscribe and turn on notifications to never miss a weekly video: https://www.youtube.com/c/bertwagner?sub_confirmation=1 Related blog post with example code: https://bertwagner.com/2019/03/26/joining-on-nulls/ Follow me on Twitter: https://twitter.com/bertwagner
Views: 373 Bert Wagner
SQL Outer JOINs and NULL
 
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Jamie King of Neumont University showing how to combine an outer join with a null check to discover rows that are not in the intersection of two tables.
Views: 3978 Jamie King
09 of 15 SQL Basics with Oracle - Using IN, NOT IN, NULL and NOT NULL
 
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This video shows how to use the IN clause as an alternative to using the OR operators. The IN clause is more compact--it's easier to type and read than multiple OR criteria. Examples of checking for NULL and NOT NUL are also given. (9 of 15) There is also an "Advanced SQL" series. (Search for "databasemec" for tutorials using SQL Server.)
Views: 3018 Jennifer Kreie
SQL Server ISNULL() & COALESCE() Functions
 
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ISNULL() & COALESCE() demonstration with examples. More on the topic in the new book: Beginner Database Design & SQL Programming Using Microsoft SQL Server 2012 Kalman Toth ISBN: 1479156043 Available on amazon in paperback & kindle.
Views: 4325 SQLUSA
SQL TUTORIAL - COALESCE, ISNULL
 
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Tutorial on how to use COALESCE and ISNULL Shows the differences between COALESCE and ISNULL
Views: 676 BeardedDev
Oracle SQL Tutorial -  Handling Null values
 
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In this video, we will see how to handle null values. Retrieving rows where specific column value IS NULL or NOT NULL. Also, we will see functions to handle NULL values. NVL ,NVL2 and NULL IF functions.
Views: 75 Ganesh Anbarasu
SQL IS NULL AND IS NOT NULL
 
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The ISNULL( ) function is available in both SQL Server and MySQL. However, their uses are different: SQL Server In SQL Server, the ISNULL( ) function is used to replace NULL value with another value.- For example, if we have the following table, Table Sales_Data Description In SQL Server (Transact-SQL), the ISNULL function lets you return an alternative value when an expression is NULL. Syntax The syntax for the ISNULL function in SQL Server (Transact-SQL) is: ISNULL( expression, alternative_value ) Parameters or Arguments expression The value to test whether it is NULL. alternative_value The value to return if the expression is a NULL value.
Views: 36 gracia heys
What is NULL? (Introduction to Oracle SQL)
 
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What a NULL value is and how it's treated in SQL
Views: 201 Database Star
SQL 2017 NULL, ISNULL,COALESCE
 
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http://ibrahimbavli.com/2017/10/30/sql-2017-coalesce-null-isnull/ SQL 2017'de NULL kavramını, IS NULL operatörünü, IS NULL fonksiyonunu ve COALESCE'i anlattım.
Views: 32 Ibrahim Bavli
SQL Server Coalesce vs Isnull with example
 
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Click here to Subscribe to IT PORT Channel : https://www.youtube.com/channel/UCMjmoppveJ3mwspLKXYbVlg SQL Server Coalesce vs Isnull functions with Simplest Example
Views: 283 IT Port
NULL-Related Functions in Oracle
 
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An overview of some of the functions Oracle provides to handle NULL values in SQL and PL/SQL. For more information see: https://oracle-base.com/articles/misc/null-related-functions Website: https://oracle-base.com Blog: https://oracle-base.com/blog Twitter: https://twitter.com/oraclebase Cameo by Bjoern Rost Blog: http://portrix-systems.de/blog/brost/ Twitter: https://twitter.com/brost Cameo appearances are for fun, not an endorsement of the content of this video.
Views: 2771 ORACLE-BASE.com
SQL. ISNULL и COALESCE.
 
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В видео показано из чего состоит функции ISNULL и COALESCE. P.S. Задавайте вопросы в комментариях и высказывайте свое мнение и пожелания
Oracle DENSE_RANK Function
 
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https://www.databasestar.com/oracle-dense_rank/ The Oracle DENSE_RANK function allows you to calculate a rank of a row in a group of rows. It returns this rank as a NUMBER value. This function can be used as either an analytic or an aggregate function, and the syntax depends on how you use it. As an aggregate function it looks like this: DENSE_RANK ( expr, [expr(n)] ) WITHIN GROUP ( ORDER BY (order_expr [ASC|DESC] [NULLS FIRST|LAST] ) These parameters are: - expr: this is the value to search for in a particular table. You can specify multiple search values, and just separate them by a comma. - order_expr: this is used to order the expr values by, because you get a different results depending on what order you rank the values in. - NULLS FIRST or LAST: this is where you can specify if you want to have NULL values appear at the top of your ranking order or at the bottom. As an analytic function, it looks like this: DENSE_RANK() OVER ( [query_partition_clause] order_by_clause) The parameters are: - query_partition_clause: this is the expression that the ranking is “grouped” by, as analytic functions allow you to group data within rows. - order_by_clause: this is the expression to order your results by to determine a rank. For this function, if two records have the same sort or rank position, they will have the same RANK value. It won’t cause a gap in the rankings, unlike the RANK function which does cause a gap. For more information about the Oracle DENSE_RANK function, including all of the SQL shown in this video and the examples, read the related article here: https://www.databasestar.com/oracle-dense_rank/
Views: 489 Database Star
SQL Handling NULL
 
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Jamie King of Neumont University speaking on why NULL in SQL is different and how we compensate for it.
Views: 6207 Jamie King
Differences between ISNULL and NULLIF
 
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Nullif and Null are two important functions in Sql server which are important to handle Null Value.This video gives difference between Nullif and Null functions.
Views: 1142 SqlIsEasy
Oracle SQL Lecture 28: IS NULL and IS NOT NULL
 
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Oracle SQL: IS NULL and IS NOT NULL https://www.youtube.com/channel/UCnBpiBIOtRgMsk4G7Ri1jbQ
Views: 755 Oracle SQL
Hints and Tips - Using NULLIF in SQL
 
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An easy method to avoid divide by zero by using NULLIF ========================================­­­­­============== 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.
Views: 2452 Connor McDonald
IS NOT NULL, IS NULL, NVL FUNCTION in oracle sql
 
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Oracle sql tutorial, How to select, retrieve rows with null values, not null values and NVL function in oracle SQL
SQL tutorial 72: NVL SQL NULL function By Manish Sharma RebellionRider
 
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Part 1: SQL Null Function NVL learn the concepts of NVL null function in this tutorial with examples and all the Interview concepts covered ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/nvl-sql-null-function Previous Tutorial ► LPAD & RPAD Functions https://youtu.be/nPtbuHPCN6E ------------------------------------------------------------------------- ►►►Let's Get Free Uber Cab◄◄◄ Use Referral Code UberRebellionRider and get $20 free for your first ride. ------------------------------------------------------------------------- ►►►Help Me In Getting A Job◄◄◄ ►Help Me In Getting A Good Job By Connecting With Me on My LinkedIn and Endorsing My Skills. All My Contact Info is Down Below. You Can Also Refer Me To Your Company Thanks ------------------------------------------------------------------------- Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=kb4rc1 -------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! -------------------------------------------------------------------------- Amazon Wishlist: http://bit.ly/wishlist-amazon ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ You can also Email me at for E-mail address please check About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 26496 Manish Sharma
How to filter Rows with Null Values in Select Statement - SQL Server / TSQL Tutorial Part 110
 
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SQL Server / T-SQL Tutorial Scenario: How to filter Rows with Null Values in Select Statement in SQL Server Let's say that you are working as SQL Server developer. You need to write two queries 1) Return all the records from dbo.Customer table where Address column has Null values 2) Return only the records from dbo.Customer table where Address column has the values other than Null. Link to scripts used in SQL Server / TSQL Tutorial Video http://www.techbrothersit.com/2016/06/how-to-filter-rows-with-null-values-in.html Check out our website for Different SQL Server, MSBI tutorials and interview questions such as SQL Server Reporting Services(SSRS) Tutorial SQL Server Integration Services(SSIS) Tutorial SQL Server DBA Tutorial SQL Server / TSQL Tutorial ( Beginner to Advance) http://www.techbrothersit.com/
Views: 4251 TechBrothersIT
006   NULL Operator
 
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The Oracle IS NULL condition is used to test for a NULL value. You can use the Oracle IS NULL condition in either a SQL statement or in a block of PLSQL code. Source: https://www.techonthenet.com/oracle/isnull.php
Views: 212 Mr.Edward Isles
NULLIF FUNCTION IN ORACLE SQL WITH EXAMPLE
 
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This video is the 3rd video in the series of 'working with null in oracle sql', the video demonstrates the use of NULLIF function in oracle sql, and how we can use it in day to day coding time. The video explains the function with perfect easy to understand example.
Views: 1496 Kishan Mashru
Oracle NULLIF Function
 
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https://www.databasestar.com/oracle-nullif/ The Oracle NULLIF function is used to compare two values and determine if they match or not. If the two values match, NULLIF returns NULL. If they don’t match, the function returns the first value. The syntax of the NULLIF function is: NULLIF (expr1, expr2) These parameters are the two expressions to compare. As mentioned above, this function returns either: - NULL if expr1 and expr2 match - expr1 if expr1 and expr2 don't match Both of these parameters can be numeric, and they both need to be the same data type. The functionality of NULLIF can be written as a CASE statement. However, if a CASE statement is really what you need, then you should use that. NULLIF should only be used if that’s the functionality you require. For more information about the Oracle NULLIF function, including all of the SQL shown in this video and the examples, read the related article here: https://www.databasestar.com/oracle-nullif/
Views: 254 Database Star
COALESCE and ISNULL In SQL Server
 
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COALESCE and ISNULL function returns first non NULL value - SQL Server
Views: 800 Informatica
SQL tutorial 74: SQL COALESCE Function In oracle Database Manish Sharma
 
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Third tutorial in SQL Null Series. Coalesce Null function with example in oracle Database. ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/sql-coalesce Previous Tutorial ► NVL https://youtu.be/aRoTR5Jn6K0 ► NVL2 https://youtu.be/SCwc0HcS1-U ------------------------------------------------------------------------- ►►►Let's Get Free Uber Cab◄◄◄ Use Referral Code UberRebellionRider and get $20 free for your first ride. ------------------------------------------------------------------------- ►►►Help Me In Getting A Job◄◄◄ ►Help Me In Getting A Good Job By Connecting With Me on My LinkedIn and Endorsing My Skills. All My Contact Info is Down Below. You Can Also Refer Me To Your Company Thanks -------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! -------------------------------------------------------------------------- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ You can also Email me at for E-mail address please check About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 28120 Manish Sharma
COALESCE IN ORACLE SQL
 
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This video is the 4th video in the series of 'working with null', this video explains the working of the coalesce function in oracle sql. Also the video explains the use of coalesce function in oracle sql queries by perfect simple and easy to understand examples. COALESCE returns the first non-null expr in the expression list. You must specify at least two expressions. If all occurrences of expr evaluate to null, then the function returns null. Oracle Database uses short-circuit evaluation. The database evaluates each expr value and determines whether it is NULL, rather than evaluating all of the expr values before determining whether any of them is NULL. If all occurrences of expr are numeric datatype or any non numeric datatype that can be implicitly converted to a numeric datatype, then Oracle Database determines the argument with the highest numeric precedence, implicitly converts the remaining arguments to that datatype, and returns that datatype.
Views: 1100 Kishan Mashru
SQL tutorial 73: NVL2 SQL null function By Manish Sharma RebellionRider
 
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Part 2: SQL Null Function NVL2 learn the concepts of NVL null function in this tutorial with examples and all the Interview concepts covered ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/nvl2-null-function Previous Tutorial ► NVL function https://youtu.be/aRoTR5Jn6K0 ------------------------------------------------------------------------- ►►►Let's Get Free Uber Cab◄◄◄ Use Referral Code UberRebellionRider and get $20 free for your first ride. ------------------------------------------------------------------------- ►►►Help Me In Getting A Job◄◄◄ ►Help Me In Getting A Good Job By Connecting With Me on My LinkedIn and Endorsing My Skills. All My Contact Info is Down Below. You Can Also Refer Me To Your Company Thanks ------------------------------------------------------------------------- Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=kb4rc1 -------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! -------------------------------------------------------------------------- Amazon Wishlist: http://bit.ly/wishlist-amazon ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ You can also Email me at for E-mail address please check About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 22439 Manish Sharma
Oracle COALESCE Function
 
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https://www.databasestar.com/oracle-coalesce/ The COALESCE function in Oracle allows you to input one or many values and return a value that is not NULL. You provide it with a series of values, and it returns the first of thsoe values which are not NULL. The syntax of the Oracle COALESCE function is: COALESCE(expr1, expr2 [, expr_n]) These parameters are: Expr1: the first expression to check for a NULL value. If it’s NULL, the function checks the next parameter. If not, then this value is returned. Expr2: the second expression to check for a NULL value, if the first expression is NULL. If this is NULL, then the next expression is checked, otherwise this value is returned. Expr_n: More expressions can be added and checked in case both expr1 and expr2 are null. Only the first two expressions are needed. The first non-NULL expression is returned. But, if all expressions are NULL, then NULL is returned. One way I’ve recently used this was to find out what phone number to display. A query looked at the mobile number and returned that, but if it was NULL it looked at the home phone and returned that, but if that was NULL it looked to the business phone number. That query looked like this: COALESCE(mobile_phone, home_phone, business_phone) For more information about the Oracle COALESCE function, including all of the SQL shown in this video and the examples, read the related article here: https://www.databasestar.com/oracle-coalesce/
Views: 610 Database Star
SQL Q & A Part 3 - NULL Functions NVL, NVL2, NULLIF, DECODE, & COALESCE
 
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NULL is a keyword used to represent ‘unknown’ or ‘missing’ data. NULL is not ‘zero’ or ‘blank’. SQL NULL functions are used to validate it. Explained NVL(), NVL2(), NULLIF(), DECODE() & COALESCE() in detail with examples SQL Interview Q & A Playlist: https://www.youtube.com/watch?v=t2qoqI5TjSk&list=PLSo-SnVTqbBLavDdG89zpQZDWkoEc9LP_ LINUX Interview Q & A Playlist: https://www.youtube.com/watch?v=1WEZqImoxzs&list=PLSo-SnVTqbBIBjEhxwRV3hbYmfXOWiYmR Technology You Must Know Playlist: https://www.youtube.com/watch?v=9FPrr1f2yjo&list=PLSo-SnVTqbBK4qk42HRrawr17mBITQmJd
Views: 1165 Shivanand V
NVL2 FUNCTION IN ORACLE SQL WITH EXAMPLE
 
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This video is the 2nd video in the series of 'working with null in oracle sql' , the video explains and demonstrates the use of nvl2 function in oracle sql with simple and easy to understand example.
Views: 1756 Kishan Mashru
SQL 12c Tutorial 13  : SQL General Functions NVL , NVL2, NULLIF and COALESCE
 
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SQL 12c General Functions NVL , NVL2, NULLIF and COALESCE SQL 12c Tutorial for beginners Oracle SQL 12c Tutorial NVL NVL2 NULLIF COALESCE
Views: 1149 TechLake
NULL Value in sql | Part 10 | SQL tutorial for beginners | Tech Talk Tricks
 
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Welcome to our Tech Talk Tricks channel.The SQL NULL is the term used to represent a missing value. A NULL value in a table is a value in a field that appears to be blank. #TechTalkTricks #RanaSingh A field with a NULL value is a field with no value. It is very important to understand that a NULL value is different than a zero value or a field that contains spaces. Syntax The basic syntax of NULL while creating a table. SQL: CREATE TABLE CUSTOMERS( ID INT NOT NULL, NAME VARCHAR (20) NOT NULL, AGE INT NOT NULL, ADDRESS CHAR (25), SALARY DECIMAL (18, 2), PRIMARY KEY (ID) ); Here, NOT NULL signifies that column should always accept an explicit value of the given data type. There are two columns where we did not use NOT NULL, which means these columns could be NULL. A field with a NULL value is the one that has been left blank during the record creation. null value definition sql is null or empty sql is not null or empty null value statistics importance of null values in relational database sql if null sql isnull function sql if not null ************************************************** Follow Tech Talk Trick on Facebook https://www.facebook.com/techtalktricks ************************************************** Follow tech talk trick on Twitter https://twitter.com/tecktalktrick ************************************************** Follow Tech Talk Tricks on Instagram https://www.instagram.com/techtalktricks ************************************************** Subscribe tech talk tricks on YouTube https://www.youtube.com/techtalktricks ***************************************************
Views: 1517 TechTalkTricks
134. Replacing NULL in SQL (Hindi)
 
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Please Subscribe Channel Like, Share and Comment Visit : www.geekyshows.com
Views: 4590 Geeky Shows
ISNULL , Coalesce and NULLIF in Sql Server
 
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ISNULL , Coalesce and NULLIF in Sql Server
Views: 28 Tek Tuition
PL/SQL:NVL/NVL2/Coalesce function
 
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In this tutorial, you'll learn the difference between NVL,NVL2 &Coalesce functions PL/SQL (Procedural Language/Structured Query Language) is Oracle Corporation's procedural extension for SQL and the Oracle relational database. PL/SQL is available in Oracle Database (since version 7), TimesTen in-memory database (since version 11.2.1), and IBM DB2 (since version 9.7).[1] Oracle Corporation usually extends PL/SQL functionality with each successive release of the Oracle Database. PL/SQL includes procedural language elements such as conditions and loops. It allows declaration of constants and variables, procedures and functions, types and variables of those types, and triggers. It can handle exceptions (runtime errors). Arrays are supported involving the use of PL/SQL collections. Implementations from version 8 of Oracle Database onwards have included features associated with object-orientation. One can create PL/SQL units such as procedures, functions, packages, types, and triggers, which are stored in the database for reuse by applications that use any of the Oracle Database programmatic interfaces. PL/SQL works analogously to the embedded procedural languages associated with other relational databases. For example, Sybase ASE and Microsoft SQL Server have Transact-SQL, PostgreSQL has PL/pgSQL (which emulates PL/SQL to an extent), and IBM DB2 includes SQL Procedural Language,[2] which conforms to the ISO SQL’s SQL/PSM standard. The designers of PL/SQL modeled its syntax on that of Ada. Both Ada and PL/SQL have Pascal as a common ancestor, and so PL/SQL also resembles Pascal in several aspects. However, the structure of a PL/SQL package does not resemble the basic Object Pascal program structure as implemented by a Borland Delphi or Free Pascal unit. Programmers can define public and private global data-types, constants and static variables in a PL/SQL package.[3] PL/SQL also allows for the definition of classes and instantiating these as objects in PL/SQL code. This resembles usage in object-oriented programming languages like Object Pascal, C++ and Java. PL/SQL refers to a class as an "Abstract Data Type" (ADT) or "User Defined Type" (UDT), and defines it as an Oracle SQL data-type as opposed to a PL/SQL user-defined type, allowing its use in both the Oracle SQL Engine and the Oracle PL/SQL engine. The constructor and methods of an Abstract Data Type are written in PL/SQL. The resulting Abstract Data Type can operate as an object class in PL/SQL. Such objects can also persist as column values in Oracle database tables. PL/SQL is fundamentally distinct from Transact-SQL, despite superficial similarities. Porting code from one to the other usually involves non-trivial work, not only due to the differences in the feature sets of the two languages,[4] but also due to the very significant differences in the way Oracle and SQL Server deal with concurrency and locking. There are software tools available that claim to facilitate porting including Oracle Translation Scratch Editor,[5] CEITON MSSQL/Oracle Compiler [6] and SwisSQL.[7] The StepSqlite product is a PL/SQL compiler for the popular small database SQLite. PL/SQL Program Unit A PL/SQL program unit is one of the following: PL/SQL anonymous block, procedure, function, package specification, package body, trigger, type specification, type body, library. Program units are the PL/SQL source code that is compiled, developed and ultimately executed on the database. The basic unit of a PL/SQL source program is the block, which groups together related declarations and statements. A PL/SQL block is defined by the keywords DECLARE, BEGIN, EXCEPTION, and END. These keywords divide the block into a declarative part, an executable part, and an exception-handling part. The declaration section is optional and may be used to define and initialize constants and variables. If a variable is not initialized then it defaults to NULL value. The optional exception-handling part is used to handle run time errors. Only the executable part is required. A block can have a label. Package Packages are groups of conceptually linked functions, procedures, variables, PL/SQL table and record TYPE statements, constants, cursors etc. The use of packages promotes re-use of code. Packages are composed of the package specification and an optional package body. The specification is the interface to the application; it declares the types, variables, constants, exceptions, cursors, and subprograms available. The body fully defines cursors and subprograms, and so implements the specification. Two advantages of packages are: Modular approach, encapsulation/hiding of business logic, security, performance improvement, re-usability. They support object-oriented programming features like function overloading and encapsulation. Using package variables one can declare session level (scoped) variables, since variables declared in the package specification have a session scope.
Views: 5028 radhikaravikumar
SQL server Function 2 - ISNULL() ,COALESCE() functions
 
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1) ISNULL() function : We are passing 2 parameters to IsNULL() function. If 1st parameter returns NULL, then 'XYZ' string(2nd parameter) is used as the replacement value. 2) COALESCE() function: COALESCE() function, returns the first NON NULL value. We are passing Col1, Col2 and ColN columns as parameters to the COALESCE() function. The COALESCE() function returns the first non null value from the 3 columns. A) ISNULL() VS COALESCE() :
Views: 30 R K
SQL Server Isnull and Nullif Example
 
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Click here to Subscribe to IT PORT Channel : https://www.youtube.com/channel/UCMjmoppveJ3mwspLKXYbVlg SQL Server Isnull and Nullif with Simple example
Views: 219 IT Port
Tutorial#41 NVL2 function in oracle SQL database by rakesh malviya
 
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Explaining NVL2 SQL null function / Oracle NVL2 Function / NVL2 Function in SQL Query / what NVL2 Function in Oracle SQL, its perfect video for fresher/beginner/starter it has an assignment, practical and theory part of NVL2 Function, its best video of NVL2 function Assignment link: https://drive.google.com/open?id=13qNfykwag9tSuV0IVX2ycP2R-MGoNEXS you may get the answer to the following question in this series difference between nvl and nvl2 nvl in SQL coalesce function in Oracle oracle nvl nvl in where clause how to handle null values in where clause in Oracle oracle nvl nvl in where clause In this series we cover the following topics: SQL basics, create table oracle, SQL functions, SQL queries, SQL server, SQL developer installation, Oracle database installation, SQL Statement, OCA, Data Types, Types of data types, SQL Logical Operator, SQL Function,Join- Inner Join, Outer join, right outer join, left outer join, full outer join, self-join, cross join, View, SubQuery, Set Operator. Link for assignment: UPPERfunction in SQL https://drive.google.com/open?id=1ibjDTDX-CiPUShpf8j9kLkLjkYRdN9_e follow me on: Facebook Page: https://www.facebook.com/LrnWthr-319371861902642/?ref=bookmarks Contacts Email: [email protected] Instagram: https://www.instagram.com/equalconnect/ Twitter: https://twitter.com/LrnWthR #NVL2FunctionInSQL #OracleSQLTraining #SQLTutorial
Views: 75 EqualConnect Coach
T-SQL - NOT NULL Constraints
 
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T-SQL - NOT NULL Constraints Watch more Videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Anadi Sharma, Tutorials Point India Private Limited
SQL Tutorial for beginners What is Coalesce Function in Oracle
 
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What is Coalesce Function in Oracle How to Get First Not Null Record in SQL Coalesce function is using for to get first not null expression from list of arguments. SQL Tutorial SQL Tutorial for beginners PLSQL Tutorial PLSQL Tutorial for beginners PL/SQL Tutorial PL SQL Tutorial PL SQL Tutorial for beginners PL/SQL Tutorial for beginners Oracle SQL Tutorial
Views: 318 TechLake

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