MySQL alter 语句用法
摘要:
//主键 alter table tabelname add new_field_id int(5) unsigned default 0 not null auto_increment ,add primary key (new_field_id); //增加一个新列 alter table t2 add d timestamp; alter table infos add ex t... 阅读全文
posted @ 2008-08-14 00:09 cy163 阅读(532) 评论(0) 推荐(0) 编辑