1.查找表中多余的重复记录,重复记录是根据单个字段(ipaddr_to_long)来判断 SELECT * FROM ips WHERE ipaddr_to_long IN (SELECT ipaddr_to_long FROM ips GROUP BY ipaddr_to_long HAVING COUNT(ipaddr_to_long) > 1) 2.去重 留ID最小的数据DELETE FROM ips a WHERE (a.ipaddr_to_long) IN...【阅读全文】
How To Setup Disk Quotas For MySQL Databaseby Vivek Gite on January 28, 2008 last updated January 28, 2008in Howto, Linux, MySQL, UNIXThis is a user contributed article.MySQL server has no support for preventing disk from gett...【阅读全文】