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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.
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CASE WHEN Quantity > 30 THEN 'The quantity is greater than...
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SQL Statement: SELECT CustomerName, City, Country FROM...
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16 sty 2024 · Table of Contents. Understanding CASE WHEN Syntax. Basic Syntax: CASE WHEN THEN. CASE WHEN THEN ELSE. Multiple THENs in CASE WHEN. Examples of Using CASE WHEN in Data Analysis. Example 1: Categorizing Data. Example 2: Handling NULL Values. Example 3: Creating Aggregated Columns. Example 4: Marketing Analysis. Example 5: Customer Segmentation.
13 cze 2021 · Here you can find a complete guide for MySQL case statements in SQL. CASE WHEN some_condition THEN return_some_value ELSE return_some_other_value END
2 cze 2023 · The SQL CASE statement allows you to perform IF-THEN-ELSE functionality within an SQL statement. Learn more about this powerful statement in this article. This article applies to Oracle, SQL Server, MySQL, and PostgreSQL.
CASE With ELSE. A CASE statement can have an optional ELSE clause. The ELSE clause is executed if none of the conditions in the CASE statement is matched. Syntax
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. Solution. The CASE expression is used to build IF … THEN … ELSE statements into your Microsoft SQL Server T-SQL code.
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. Syntax for SQL Server, Azure SQL Database and Azure Synapse Analytics. syntaxsql. Copy
