SQL CASE Expression W3Schools
The SQL CASE Expression The CASE expression goes through conditions and returns a value when the first condition is met like an if then else statement So once a condition is true it will stop reading and return the result If no conditions are true it returns the value in the ELSE clause
SQL Case Expression Syntax Stack Overflow, Here are the CASE statement examples from the PostgreSQL docs Postgres follows the SQL standard here SELECT a CASE WHEN a 1 THEN one WHEN a 2 THEN two ELSE other END FROM test or SELECT a CASE a WHEN 1 THEN one WHEN 2 THEN two ELSE other END FROM test
How to Use CASE in SQL LearnSQL
The SQL CASE statement is one of the most useful conditional constructs available and has a lot of applications for analyzing data with SQL To practice using CASE statement after reading this article I recommend our interactive course Creating Basic SQL Reports
How to Use the SQL CASE Statement with Example Challenge, With SQL you can do this using the CASE statement You use the CASE keyword together with the WHEN clause to execute a block of conditional statement code You use a THEN statement to return the result of the expression If none of the conditions are met then you use a final ELSE clause to return a fallback result
IF ELSE Transact SQL SQL Server Microsoft Learn
IF ELSE Transact SQL SQL Server Microsoft Learn, In this article Imposes conditions on the execution of a Transact SQL statement The Transact SQL statement that follows an IF keyword and its condition is executed if the condition is satisfied the Boolean expression returns TRUE The optional ELSE keyword introduces another Transact SQL statement that is executed when the IF condition is
SQL UPDATE Statement Transact SQL Essential SQL
CASE Transact SQL SQL Server Microsoft Learn
CASE Transact SQL SQL Server Microsoft Learn The CASE expression can t be used to control the flow of execution of Transact SQL statements statement blocks user defined functions and stored procedures For a list of control of flow methods see Control of Flow Language Transact SQL The CASE expression evaluates its conditions sequentially and stops with the first condition whose
SQL SQL CASE WHEN THEN ELSE END
To begin we of initialize the CASE statement then specify under which conditions WHEN our CASE statement should evaluate a result In this example we re examining the books title and books primary author if either fit our Tolkien esque theme THEN we return the value Middle earth How to Use IF THEN Logic in SQL Server Tutorial by Chartio. 9 Answers Sorted by 145 You could use an IN clause Something like SELECT status CASE WHEN STATUS IN a1 a2 a3 THEN Active WHEN STATUS i THEN Inactive WHEN STATUS t THEN Terminated END AS STATUSTEXT FROM STATUS Have a look at this demo SQL Fiddle DEMO Share Improve this answer Follow edited Mar 26 2014 at 5 39 The IF statement in T SQL works very much like the IF statement in most modern programming languages It allows a line of code or a block of code to be run only if certain conditions are met If the conditions are not met the code is skipped and execution moves to later lines of code SQL IF Statement Basics
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