摘要：
select * from ( --获取冗余数据中的唯一最小行数据 select * from table_1 t1 where t1.id in ( select min(t2.id) from table_1 t2 group by t2.employeeid having t1.employeeid=t2.employeeid a... 阅读全文
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摘要：
select * from ( --获取冗余数据中的唯一最小行数据 select * from table_1 t1 where t1.id in ( select min(t2.id) from table_1 t2 group by t2.employeeid having t1.employeeid=t2.employeeid a... 阅读全文
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