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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. 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.
The CASE expression in SQL server allows us to apply if-then-else logic in a SQL statement. A CASE consists of a number of conditions with an accompanying custom result value in a case body followed by an optional ELSE clause.
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.
20 Απρ 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.
28 Ιουν 2019 · Learn how to use the SQL Server CASE statement to set the value of one column depending on the values in other columns. See different examples of the CASE statement with single and multiple conditions, logical operators, and dummy data.
11 Φεβ 2020 · Using the SQL Server CASE statement to get aggregations for subsets in different columns. The CASE statement can be very helpful when there is a need to aggregate the data for different subsets and represent the results for each subset in separate columns.
