摘要:
https://www.jianshu.com/p/bc91c6b46d7b https://www.jianshu.com/p/bc91c6b46d7b https://www.jianshu.com/p/bc91c6b46d7b 阅读全文
摘要:
INSERT into area_copy (SELECT *from area) 阅读全文
摘要:
select TABLE_NAME from INFORMATION_SCHEMA.TABLES where TABLE_SCHEMA='dbname' and TABLE_NAME='tbname' ; 阅读全文
摘要:
select * from comm_user WHERE length(tags)!=CHAR_LENGTH(tags) 阅读全文