mysql查找重复

时间：2015-06-30 20:17:02 阅读：167 评论：0 收藏：0 [点我收藏+]

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??? ? ?? ??

SELECT ???, count(*) FROM ???? GROUP BY ???

mysql> SELECT t1, count(*) FROM test GROUP BY t1

??? ??? n? ??? ? ??

SELECT ???, count(*) as ??? FROM ???? GROUP BY ??? HAVING ???>n

mysql> SELECT t1, count(*) as num FROM test GROUP BY t1 HAVING num>1;

+------------+-----+

| t1 | num |

+------------+-----+

| tulip pink | 2 |

| ??? | 2 |

+------------+-----+

2 rows in set (0.01 sec)

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原文地址：http://www.cnblogs.com/jweb/p/4611176.html

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