摘要: 删除表中多余的重复记录,重复记录是根据单个字段(wm_classresid)来判断,只留有wm_id最小的记录 DELETE FROM wm_classresources WHERE wm_classresid IN (SELECT wm_classresid FROM (SELECT wm_cla 阅读全文
posted @ 2018-05-16 17:02 Materben 阅读(110) 评论(0) 推荐(0) 编辑