条件:
①表tb_student
②表tb_student中存在列 L3VPN
select * from tb_studentALTER TABLE tb_student DROP COLUMN l3vpn 版权声明:本文为banzhengyu原创文章,遵循CC 4.0 BY-SA版权协议,转载请附上原文出处链接和本声明。
条件:
①表tb_student
②表tb_student中存在列 L3VPN
select * from tb_studentALTER TABLE tb_student DROP COLUMN l3vpn