分类： Mysql/postgreSQL
2013-11-28 09:20:59
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Java代码
//把User表中相关字段的记录并入到UserAdditionalInfo表中
insert tbl_user_additional_info
(user_id,country,address,postal_code,phone,edu_background)
select
user_id,country,address,postal_code,phone,edu_background
from tbl_user where user_id not in(select user_id from tbl_user_additional_info);
//更改User表的结构
alter table tbl_user
drop user_id,
drop country,
drop address,
drop postal_code,
drop phone,
drop edu_background;
##############################
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拓展阅读：
