Jun 3, 2022 · It works for a select statement, but not for an update statement. (select (case (condition) when true then columnx else columny end) from myTable....the update does not …

CASE statement works like IF-THEN-ELSE statement. I have SQL server Table in which there is column that I wanted to update according to a existing column value that is present in current …

Jun 6, 2017 · The CASE expression can also be used in an UPDATE statement. You are familiar with the UPDATE statement; it changes or updates existing column values. If you want to …

Mar 8, 2025 · Learn how to use a SQL CASE statement to update records based on conditional logic, such as updating salaries based on age.

Sep 13, 2012 · We can use various DML statements like INSERT, SELECT, DELETE and UPDATE with a CASE statement. In this Tech-Recipes tutorial, we will see how to use a …

Nov 22, 2024 · For example, you can use CASE in statements such as SELECT, UPDATE, DELETE and SET, and in clauses such as <select_list>, IN, WHERE, ORDER BY, and …

Dec 15, 2015 · If you don't want to repeat the list twice (as per @J W's answer), then put the updates in a table variable and use a JOIN in the UPDATE: declare @ToDo table (FromName …

Apr 26, 2017 · Your CASE is almost correct, but to be able to do a separate join, you have to use a subquery: UPDATE a SET Material = CASE WHEN Element <= 300000 THEN 80000 ELSE …

Apr 20, 2021 · CASE is used within a SQL statement, such as SELECT or UPDATE. Don’t mistake CASE for the IF ELSE control of flow construct, which is used to evaluate the …

CASE expressions are often over-looked but can be extremely useful to change very complex query requirements into simpler, and sometimes more efficient SQL statements. The CASE …