SQL語句之CASE WHEN

CASE WHEN 基本概念 Case具備兩種格式：簡單Case函數和Case搜索函數。web 簡單Case函數： CASE sex WHEN ‘1’ THEN ‘男’ WHEN ‘0’ THEN ‘女’ ELSE ‘其餘’ ENDsql Case搜索函數： CASE WHEN sex = ‘1’ THEN ‘男’ WHEN sex = ‘0’ THEN ‘女’ ELSE ‘其餘’ ENDsvg

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