--啟用or禁用指定表所有外鍵約束 alter table tbname NOCHECK constraint all alter table tbname CHECK constraint all --查看約束 select name , is_disabled from sys.foreign_keys order by name --禁用 ALTER TABLE tbname DISABLE TRIGGER trigname --恢復 ALTER TABLE tbname ENABLE TRIGGER trigname --禁用某個表上的所有觸發器 ALTER TABLE tbname DISABLE TRIGGER all --啟用某個表上的所有觸發器 ALTER TABLE tbname ENABLE TRIGGER all --添加主鍵 alter table tbname add constraint pk_name primary key(column1,column2) --添加非聚集主鍵 alter table tbname add constraint pk_name primary key NONCLUSTERED(column1,column2) --刪除主鍵 alter table tbname drop constraint pk_name --添加外鍵 alter table tbname add constraint fk_name foreign key (fk_column) references pk_tbname(pk_column) --刪除外鍵 alter table tbname drop constraint fk_name --添加唯一約束 alter table tbname add constraint uq_colname unique (colname)