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mysql insert update语句

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WBOYOriginal
2016-06-07 17:22:001657browse

执行这条语句,会帮你自动判断数据库中是否有与你要插入的记录重复主键,有则更新,没有就插入格式如:insert into tablename(字

执行这条语句,会帮你自动判断数据库中是否有与你要插入的记录重复主键,有则更新,没有就插入

格式如:insert into tablename(字段1,,字段2,。。。。) select * from (select ? 字段1,? 字段2,.... from dual) as b on duplicate key update 字段1=b.字段1,....

例子:insert into trtb_dim_top_cats(cid,parent_cid,name,is_parent,status,sort_order,lev)

select * from (select ? cid,? parent_cid,? name,? is_parent,? status,? sort_order,? lev from dual)

as b on duplicate key update cid=b.cid,parent_cid=b.parent_cid,name=b.name,is_parent=b.is_parent,status=b.status,sort_order=b.sort_order,lev=b.lev

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