select * from dbo.TAB_MEMBER_CARD 查詢的條數(shù)和
select * FROM dbo.TAB_MEMBER_CARD LEFT JOIN dbo.Tab_MemberInfoDoc ON dbo.TAB_MEMBER_CARD.ID = dbo.Tab_MemberInfoDoc.member_id 查詢的條數(shù)不一樣是怎么回事？
兩個(gè)查詢結(jié)果不一樣
尚方寶劍之說(shuō)
2018-12-07 07:50:12
