M MikeZ Unregistered / Unconfirmed GUEST, unregistred user! 2002-09-05 #3 ALTER TABLE A ADD COLUMN FIELD TYPE
T twos Unregistered / Unconfirmed GUEST, unregistred user! 2002-09-05 #4 alter table tablename add column fieldname fieldtype alter table tablename delete column fieldname 有的数据库还支持修改 alter table tablename alter column fieldname fieldtype
alter table tablename add column fieldname fieldtype alter table tablename delete column fieldname 有的数据库还支持修改 alter table tablename alter column fieldname fieldtype
