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26 cze 2023 · The CASE statement in the WHERE clause can conditionally filter rows based on defined criteria. The syntax for the CASE statement in the WHERE clause is shown below. The CASE expression matches the condition and returns the value of the first THEN clause.
16 paź 2008 · I'm trying to do this in SQL: declare @locationType varchar(50); declare @locationID int; SELECT column1, column2. FROM viewWhatever. WHERE. CASE @locationType. WHEN 'location' THEN account_location = @locationID. WHEN 'area' THEN xxx_location_area = @locationID.
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.
3 wrz 2024 · CASE can be used in any statement or clause that allows a valid expression. 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 HAVING.
20 kwi 2021 · In the T-SQL scripting language, you can use the SQL CASE statement to evaluate a condition and return one or more result expressions. This SQL Tutorial will teach you when and how you can use CASE in T-SQL statements.
SQL Server CASE expression evaluates a list of conditions and returns one of the multiple specified results. The CASE expression has two formats: simple CASE expression and searched CASE expression. Both of CASE expression formats support an optional ELSE statement.
1 kwi 2019 · The case statement in SQL returns a value on a specified condition. We can use a Case statement in select queries along with Where, Order By, and Group By clause. It can be used in the Insert statement as well. In this article, we would explore the CASE statement and its various use cases.
