Home Backend Development PHP Tutorial 续问:求教mysql批量更新有关问题

续问:求教mysql批量更新有关问题

Jun 13, 2016 am 10:15 AM
case then update

续问:求教mysql批量更新问题
UPDATE table
SET s = CASE id
WHEN 1 THEN '1'
WHEN 3 THEN '2'
END
WHERE id IN (1,3)
更新一个字段这样写,要是同时更新两个或者更多字段怎么写

------解决方案--------------------
一样的啊……

update table set field_a='', field_b='',……

你的代码里''部分,被CASE WHEN语法代替了

如果别的字段还是依赖某个字段的,同样的结构代替

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