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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.
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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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13 cze 2021 · case-expression - something that produces a value. when-expression-x - something that is compared against the case-expression. value-1 - the result of the CASE statement if: the when-expression == case-expression.
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.
3 wrz 2024 · The searched CASE expression evaluates a set of Boolean expressions to determine the result. Both formats support an optional ELSE argument. CASE can be used in any statement or clause that allows a valid expression.
22 sie 2024 · The CASE statement in SQL is a versatile conditional expression that enables us to incorporate conditional logic directly within our queries. It is commonly used to generate new columns based on certain conditions and provide custom values or control the output of our queries.
What is a SQL CASE Expression? The CASE expression in SQL is a conditional expression, similar to “if…else” statements found in other programming languages. It allows us to perform conditional logic in our SQL queries, where you can change the data that is returned based on specific conditions.
28 cze 2023 · Utilizing SQL case expressions allows users to perform conditional operations within their SQL queries. The Searched Case expression, in particular, is a versatile tool that arises when a simple case expression isn’t adequate.
