1.創建一個新表，結構從舊錶來
create table new_table like old_table
2.複製數據到新表
insert into crm_radacct
select * from radacct
where acctstoptime < '2011-11-01 00:00:00'
3.刪除舊錶的數據
delete from radacct
where acctstoptime < '2011-11-01 00:00:00'
4.清理數據庫操作日誌
cd /var/lib/mysql
mysql -u root -p
reset master;
5.查看mysql文件夾佔用空間大小
du -h --max-depth=1 /var/lib/mysql
6.關閉數據庫操作日誌選項
vi /etc/my.cnf
註釋log-bin=mysql-bin
service mysqld restart