mysql表之間數(shù)據(jù)轉(zhuǎn)移_MySQL

Java代碼 //把User表中相關(guān)字段的記錄并入到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表的結(jié)構(gòu) alter table tbl_user drop user_id, drop country, drop address, drop postal_code, drop phone, drop edu_background; ##############################