简单逻辑求解，我转不过弯来，求大神解救，在线等
表1：DP_MemberStore

表2：DP_CommonSmsEntries

求会员所挂靠的全部门店都已经报了门店月销售XS任务的会员


备注：会员MemberId 门店StoreId 任务Instruction join
[解决办法]

select * from DP_MemberStore a where exists(select * from DP_CommonSmsEntries b where a.MemberId = b.MemberId  and b.Instruction = 'XS')