1.查找重复的行
SELECT * FROM blog_user_relation a WHERE (a.account_instance_id,a.follow_account_instance_id)
IN (SELECT account_instance_id,follow_account_instance_id FROM blog_user_relation GROUP BY account_instance_id, follow_account_instance_id HAVING
1.调整内存 sp_configure ‘show advanced options’,1 GO RECONFIGURE Go sp_configure ‘awe enabled’, 1 GO RECONFIGURE Go sp_configure ‘min server memory’,1024 Go sp_configure ‘max server memory’,3072 GO RECONFIGURE Go PS: OS需要打开AWE 即在boot.ini里 添加 /3G 或者 /PAE