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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.
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13 Ιουν 2021 · Sybase has the same case syntax as SQL Server: Description. Supports conditional SQL expressions; can be used anywhere a value expression can be used. Syntax case when search_condition then expression [when search_condition then expression]... [else expression] end Case and values syntax
3 Σεπ 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. Transact-SQL syntax conventions.
The SQL CASE expression allows you to evaluate a list of conditions and returns one of the possible results. The CASE expression has two formats: simple CASE and searched CASE. You can use the CASE expression in a clause or statement that allows a valid expression.
22 Αυγ 2024 · The CASE statement in SQL is a conditional expression that allows you to execute different logic based on certain conditions within a query. It is used to create new columns, customize values, or modify query outputs depending on specified criteria.
2 Ιουν 2023 · The syntax of the SQL CASE expression is: CASE [expression] WHEN condition_1 THEN result_1. WHEN condition_2 THEN result_2 ... WHEN condition_n THEN result_n. ELSE result. END case_name. The CASE statement can be written in a few ways, so let’s take a look at these parameters. Parameters of the CASE Statement.
SQL CASE Expression Syntax. The SQL CASE expression has two formats: the simple CASE expression and the searched CASE expression. Simple CASE Expression. Here’s the syntax for a simple CASE expression: CASE input_expression . WHEN expression [THEN result_expression] [...n] [ . ELSE else_result_expression . ] . END.
