酸 酸橙子 Unregistered / Unconfirmed GUEST, unregistred user! 2002-05-29 #1 我现在用Acess为后台数据库,想完成从一个结果集中减去另一个结果集的查询操作。 那位大虾知道该用什么查询语句?
F Fanny501 Unregistered / Unconfirmed GUEST, unregistred user! 2002-05-30 #2 select * from t1 where ( ID not in (select Id from t2) ) note: ID is the primary key of you table in Database!
select * from t1 where ( ID not in (select Id from t2) ) note: ID is the primary key of you table in Database!
酸 酸橙子 Unregistered / Unconfirmed GUEST, unregistred user! 2002-05-30 #3 thanks ,it seems so easy, right?