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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.
- Try It Yourself
Edit the SQL Statement, ... The Try-MySQL Editor at...
- The Try-MySQL Editor
Edit the SQL Statement, ... The Try-MySQL Editor at...
- Try It Yourself
The SQL CASE Statement. The CASE statement 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.
15 wrz 2008 · The CASE statement is the closest to IF in SQL and is supported on all versions of SQL Server. SELECT CAST( CASE. WHEN Obsolete = 'N' or InStock = 'Y' THEN 1. ELSE 0. END AS bit) as Saleable, * FROM Product. You only need to use the CAST operator if you want the result as a Boolean value. If you are happy with an int, this works: SELECT CASE.
17 sie 2021 · Explore CASE in SQL and master conditional logic with our comprehensive guide on the CASE statement. Includes practical examples and best practices.
The SQL CASE statement is a powerful tool that allows you to perform conditional logic in your SQL queries. The statement is used to evaluate a condition or set of conditions and return a value based on the result of that evaluation.
MySQL CASE expression is a control flow structure that allows you to add if-else logic to a query. Generally speaking, you can use the CASE expression anywhere that allows a valid expression e.g., SELECT, WHERE and ORDER BY clauses. The CASE expression has two forms: simple CASE and searched CASE.
CASE. The CASE command is used is to create different output based on conditions. The following SQL goes through several conditions and returns a value when the specified condition is met: Example. SELECT OrderID, Quantity, CASE. WHEN Quantity > 30 THEN "The quantity is greater than 30" WHEN Quantity = 30 THEN "The quantity is 30"
