【mysql】sql語句的更新和截取

更新 update 表名 set 字段 = 要修改的內容 where 條件web - 字符串拼接 UPDATE t_vbquestion SET Answer1=CONCAT(‘A. ‘,Answer1),Answer2=CONCAT(‘B. ‘,Answer2) where QuestionTypeID=1sql - 批量更新 case when數據庫 UPDATE t_vbquestion S

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