sql语句使用记录_MySQL
- WBOY原創
- 2016-05-31 08:49:471092瀏覽
查询存在重复的字段（mysql）
select nickname from user where school_id="swiftv" group by nickname having count(*)>1;
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查询存在重复的字段（mysql）
select nickname from user where school_id="swiftv" group by nickname having count(*)>1;