select package_name_en from tb_feature_package a cross join tb_package b on a.package_sid =b.sid where package_name_en is not null
select package_name_en from tb_feature_package a left join tb_package b on a.package_sid =b.sid where package_name_en is not null
union
select package_name_en from tb_feature_package a right join tb_package b on a.package_sid =b.sid where package_name_en is not null
update tb_package b join(
select a.package_sid from tb_feature_package a join tb_package b on a.package_sid =b.sid
) a on a.package_sid =b.sid set b.package_name_en =b.package_name
where b.package_name_en is null
代码只做参考
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/2370/viewspace-2807811/ ，如需转载，请注明出处，否则将追究法律责任。
上一篇：
Spring Bean 定义继承
请登录后发表评论
登录
全部评论
