测试表数据如下:sql:select * from zhubiaofushu where id in (select fid from zhubiao)select * from zhubiao t inner join zhubiaofushu t1on t.fid= t1.i ...
测试表数据如下:
sql:
select * from zhubiaofushu where id in (select fid from zhubiao)select * from zhubiao t inner join zhubiaofushu t1on t.fid= t1.idselect t1.* from zhubiao t inner join zhubiaofushu t1on t.fid= t1.idselect distinct t1.* from zhubiao t inner join zhubiaofushu t1on t.fid= t1.idorder by t1.id asc
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原标题:关于联合查询与子查询的查询结果不同点_随笔
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