insert触发器例子 SQL语句创建INSERT触发器?

SQL语句创建INSERT触发器?1.createtriggerinsert ji ont ji afterinsert as if(tnonotin(selecttnofromt uuji Prin

SQL语句创建INSERT触发器?

1.createtriggerinsert ji ont ji afterinsert as if(tnonotin(selecttnofromt uuji Print“cannot insert”转到2.createtriggerdelete ji ont ji fordelete as if((selectcount(*)from t ji banji,deleted where tubanji.tno=已删除.tno)0)删除wheretnoin(选择tnofromtuuji,删除wheretu)banji.tno=已删除(tno先生)去

如果getdate()> convert(date,“2013-05-01”)开始raiserror(“cannot insert after May 1,2013”,16,1)SQL 2005应该可以,SQL 2000不确定,您可以测试它。