Shell 脚本中执行 mysql 语句

Posted by Azrael on December 29, 2016

对于自动化运维,诸如备份恢复之类的,DBA经常需要将SQL语句封装到shell脚本。

本文描述了在Linux环境下mysql数据库中,shell脚本下调用sql语句的几种方法:

1、将SQL语句直接嵌入到shell脚本文件中

[root@SZDB ~]# vi shell_call_sql1.sh

#!/bin/bash  
# Define log  
TIMESTAMP=`date +%Y%m%d%H%M%S`  
LOG=call_sql_${TIMESTAMP}.log  
echo "Start execute sql statement at `date`." >>${LOG}  
  
# execute sql stat  
mysql -uroot -p123456 -e "  
tee /tmp/temp.log  
drop database if exists tempdb;  
create database tempdb;  
use tempdb  
create table if not exists tb_tmp(id smallint,val varchar(20));  
insert into tb_tmp values (1,'jack'),(2,'robin'),(3,'mark');  
select * from tb_tmp;  
notee  
quit"  
  
echo -e "\n">>${LOG}  
echo "below is output result.">>${LOG}  
cat /tmp/temp.log>>${LOG}  
echo "script executed successful.">>${LOG}  
exit;  

[root@SZDB ~]# ./shell_call_sql1.sh

2、命令行调用单独的SQL文件

[root@SZDB ~]# vi temp.sql

tee /tmp/temp.log  
drop database if exists tempdb;  
create database tempdb;  
use tempdb  
create table if not exists tb_tmp(id smallint,val varchar(20));  
insert into tb_tmp values (1,'jack'),(2,'robin'),(3,'mark');  
select * from tb_tmp;  
notee  

[root@SZDB ~]# mysql -uroot -p123456 -e "source /root/temp.sql"

3、使用管道符调用SQL文件

[root@SZDB ~]# mysql -uroot -p123456 </root/temp.sql

使用管道符调用SQL文件以及输出日志

[root@SZDB ~]# mysql -uroot -p123456 </root/temp.sql >/tmp/temp.log

4、shell脚本中MySQL提示符下调用SQL

[root@SZDB ~]# vi shell_call_sql2.sh

#!/bin/bash  
mysql -uroot -p123456 <<EOF  
source /root/temp.sql;  
select current_date();  
delete from tempdb.tb_tmp where id=3;  
select * from tempdb.tb_tmp where id=2;  
EOF  
exit;  

[root@SZDB ~]# ./shell_call_sql2.sh