判断A表中有多少条数据在B表中【存在】,并且显示这些数据–EXISTS语句
select A.ID, A.NAME from 表A where EXISTS(select * from 表B where A.ID=B.ID)
判断A表中有多少条数据在B表中【不存在】,并且显示这些数据–NOT EXISTS语句
select A.ID, A.NAME from 表A where NOT EXISTS(select * from 表B where A.ID=B.ID)
select dataid ,if(dataid in (select ID from aip_1732602471460208641_file where ID IN (1095882,1095883)),"yes","no") from gf_file
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