删除重复项,只保留id最小的一项

标签：ids   spider   min   rom   ide   delete   not   HERE   code   

DELETE FROM spider_927
WHERE 1=1
AND title in (SELECT * FROM ( (SELECT title titles FROM spider_927 GROUP BY title HAVING COUNT(title)>1) ) a)
AND id not in (SELECT * FROM ( (SELECT MIN(id) ids FROM spider_927 GROUP BY title HAVING COUNT(title)>1) ) b)

删除重复项,只保留id最小的一项

标签：ids   spider   min   rom   ide   delete   not   HERE   code   

原文地址：https://www.cnblogs.com/xiujin/p/11515744.html