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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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29 Ιουλ 2020 · In this tip we look at an easy way to build DDL for SQL Server tables using an Excel template to generate the T-SQL for the table structure.
13 Ιουν 2021 · Here are the CASE expression examples from the PostgreSQL docs (Postgres follows the SQL standard here): SELECT a, CASE WHEN a=1 THEN 'one' WHEN a=2 THEN 'two' ELSE 'other' END FROM test; or. SELECT a, CASE a WHEN 1 THEN 'one' WHEN 2 THEN 'two' ELSE 'other' END FROM test;
2 Ιουν 2023 · The SQL CASE statements lets you implement conditional logic directly in SQL. Learn all about the SQL CASE statement (plus examples) in this guide.
This tutorial shows you how to use the SQL Server CASE expression to add if-else logic to SQL queries with many practical examples.
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.
