Search results
Learn how to use the SQL CASE expression to return a value based on conditions. See syntax, examples and a demo database with the Northwind sample data.
- Try It Yourself
CASE WHEN Quantity > 30 THEN 'The quantity is greater than...
- The Try-MySQL Editor
SQL Statement: SELECT CustomerName, City, Country FROM...
- Try It Yourself
3 lis 2011 · BEGIN. (SELECT S.FACILITY_KEY, S.PAT_NUMBER, S.A3A_DATE_USER, M.REFERENCE_DATE , RTRIM(P.LAST_NAME) + CASE WHEN RTRIM(P.FIRST_NAME) <> '' THEN ', ' ELSE '' END + RTRIM(P.FIRST_NAME) PATIENT_NAME. ,CASE WHEN P.NURSING_UNIT is not null THEN P.NURSING_UNIT ELSE '' END NURSING_UNIT.
3 wrz 2024 · The CASE expression has two formats: The simple CASE expression compares an expression to a set of simple expressions to determine the result. The searched CASE expression evaluates a set of Boolean expressions to determine the result. Both formats support an optional ELSE argument.
16 sty 2024 · CASE WHEN THEN ELSE. Without an ELSE clause, we run the risk of our new column containing NULL values. By incorporating an ELSE clause, this construct provides a fallback result when the condition is not satisfied. This is useful when you want to ensure that every record in the dataset receives a meaningful value in the new column.
The CASE statement returns the result_1, result_2, or result_3 if the expression matches the corresponding expression in the WHEN clause. If the expression does not match any expression in the WHEN clause, it returns the esle_result in the ELSE clause. The ELSE clause is optional.
28 cze 2024 · Zagnieżdżony CASE: CASE w IF ELSE. Zagnieżdżony CASE: CASE wewnątrz CASE. CASE z AKTUALIZACJĄ. CASE z zamówieniem. Interesujące fakty! Podsumowanie. Co to jest instrukcja CASE w SQL Server? Nie przegap: Samouczek SSAS: Czym jest kostka SSAS, Architektura i typy.
The basic syntax of the SQL CASE statement is as follows: CASE. WHEN condition1 THEN result1. WHEN condition2 THEN result2. ... ELSE resultN. END. In this syntax, the CASE statement evaluates each WHEN condition in order, returning the corresponding result when a condition is true.
