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select a.* from wsz a ,(select * from wsz where time = '2011-06-01' and money<>0 group by name having count(name)>1) b where a.name=b.name and a.time=b.time;
+------+-------+------------+
| name | money | time |
+------+-------+------------+
| a | 10 | 2011-06-01 |
| a | 10 | 2011-06-01 |
| b | 20 | 2011-06-01 |
| b | 20 | 2011-06-01 |
+------+-------+------------+