MySQL备份 规格严格

在ChinaUnix找到一个不错的帖子，把其中的脚本整理一下：

#!/bin/bash
# 记录时间
T=$(date +"%k:%M:%S")
# 这种是备份表数据到文件中，同时删除原表数据
mysqldump -u root -p12345 flow record >log_$T.sql
# 但是这样是否中途有数据损失不好说
mysql -u root -p12345 -e "use flow;truncate table record;"
# 这种是备份到辅助表中
mysql -u root -p12345 -e "use flow;create table record$T as select * from record
;truncate table record;" 
# 理论来说这种最好
mysql -u root -p12345 -e "use flow; create table log_temp like logs;
rename table logs to log_xxxx, log_temp to logs;"
# 然后再把数据导出来
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crontab -e 或者 vi /etc/crontab

*/5 * * * * bak.sh

1. #!/bin/sh
   
2. #
   
3. # By Justin
   
4. #
   
5. # Archive the carrierDB email_package table in every week.
   
6. #
   
7. #
   
8. #Setting
   
9. RT_name="root"
   
10. RT_pwd=""
    
11. RT_sock="/data02/mysql/mysql.sock"
    
12. 
    
13. ORI_table="email_package"
    
14. ARC_table="email_package$(date +%Y%m%d)"
    
15. 
    
16. # execute SQL
    
17. /usr/local/mysql/bin/mysql -u${RT_name} -p${RT_pwd} -S${RT_sock} << EOF
    
18. 
    
19. use carrierDB_0;
    
20. 
    
21. create table if not exists carrierDB_0.${ARC_table} like carrierDB_0.${ORI_table};
    
22. 
    
23. insert into carrierDB_0.${ARC_table} select * from carrierDB_0.${ORI_table} where task_status_id = 3 and create_time < date_sub(now(), interval 7 day);
    
24. 
    
25. delete from carrierDB_0.${ORI_table} where task_status_id = 3 and create_time < date_sub(now(), interval 7 day);
    
26. 
    
27. quit
    
28. 
    
29. EOF

这个性能不好，对了，除了用CRON外，也可以使用MYSQL EVENT