Shell脚本调用mysql语句

方法一：

mysql -hhostname -Pport -uusername -ppassword -e 相关mysql的sql语句。

不用在mysql的提示符下运行mysql，即可以在shell中操作mysql的方法。

#!/bin/bash

HOSTNAME="192.168.111.84" #数据库信息

PORT="3306"

USERNAME="root"

PASSWORD=""

DBNAME="test_db_test" #数据库名称

TABLENAME="test_table_test" #数据库中表的名称

#创建数据库

create_db_sql="create database IF NOT EXISTS ${DBNAME}"

mysql -h${HOSTNAME} -P${PORT} -u${USERNAME} -p${PASSWORD} -e "${create_db_sql}"

#创建表

create_table_sql="create table IF NOT EXISTS ${TABLENAME} ( name varchar(20), id int(11) default 0 )"

mysql -h${HOSTNAME} -P${PORT} -u${USERNAME} -p${PASSWORD} ${DBNAME} -e "${create_table_sql}"

#插入数据

insert_sql="insert into ${TABLENAME} values('billchen',2)"

mysql -h${HOSTNAME} -P${PORT} -u${USERNAME} -p${PASSWORD} ${DBNAME} -e "${insert_sql}"

#查询

select_sql="select * from ${TABLENAME}"

mysql -h${HOSTNAME} -P${PORT} -u${USERNAME} -p${PASSWORD} ${DBNAME} -e "${select_sql}"

#更新数据

update_sql="update ${TABLENAME} set id=3"

mysql -h${HOSTNAME} -P${PORT} -u${USERNAME} -p${PASSWORD} ${DBNAME} -e "${update_sql}"

mysql -h${HOSTNAME} -P${PORT} -u${USERNAME} -p${PASSWORD} ${DBNAME} -e "${select_sql}"

#删除数据

delete_sql="delete from ${TABLENAME}"

mysql -h${HOSTNAME} -P${PORT} -u${USERNAME} -p${PASSWORD} ${DBNAME} -e "${delete_sql}"

mysql -h${HOSTNAME} -P${PORT} -u${USERNAME} -p${PASSWORD} ${DBNAME} -e "${select_sql}"

方法二：

#!/bin/sh

echo "use MHFCDB;

insert into `robot_action` (ActionId, RobotAction) VALUES('0', '随机');

insert into `robot_action` (ActionId, RobotAction) VALUES('1', '移动');

insert into `robot_action` (ActionId, RobotAction) VALUES('2', '喊话');

insert into `robot_action` (ActionId, RobotAction) VALUES('3', '技能');

insert into `robot_action` (ActionId, RobotAction) VALUES('4', '副本');

INSERT INTO `login_position` (PostionName, PostionCoord, PostionOrit) VALUES('出生点', '609.30*758.43*148.25@1', '0*0*0');

INSERT INTO `login_position` (PostionName, PostionCoord, PostionOrit) VALUES('主城酒馆二楼', '661.90*759.38*150.51@1', '0*0*0');

" > sqlfile

mysql -u root < sqlfile

rm sqlfile

echo "robot_action init succesed!!"

===========================================================================================

1.直接管道过去
echo "show databases" | mysql -uroot -p'123456'
Database
information_schema
mysql
sakila
test

2.从文件
[root@kenthy sakila-db]# cat file 
show databases;
[root@kenthy sakila-db]# mysql -uroot -p'123456' < file
Database
information_schema
mysql
sakila
test

3.块
[root@kenthy sakila-db]# mysql -uroot -p'123456' << SQL
> show databases;
> SQL
Database
information_schema
mysql
sakila
test

===========================================================================================

Bash

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#!/usr/bin/perl
use DBI;

$db = DBI->connect('dbi:mysql:test', 'vpsee', 'password');
$query = "select * from test_mark";
$cursor = $db->prepare($query);
$cursor->execute;
while (@row = $cursor->fetchrow_array) {
        print "@rown";
}

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#!/bin/bash

mysql -uvpsee -ppassword test << EOFMYSQL
select * from test_mark;
EOFMYSQL

如果需要复杂的数据库操作的话不建议用 shell 脚本，用 Perl/Python/PHP 操作数据库很方便，分别通过 Perl DBI/Python MySQLdb/PHP MySQL Module 接口来操作数据库。这里再给出这三种不同语言连接、查询数据库的简单例子（为了简单和减少篇幅删除一些不必要的代码）：

Perl

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#!/usr/bin/perl


$db = DBI->connect('dbi:mysql:test', 'vpsee', 'password');
$query = "select * from test_mark";
$cursor = $db->prepare($query);
$cursor->execute;
while (@row = $cursor->fetchrow_array) {
        print "@rown";
}

Python

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#!/usr/bin/python
import MySQLdb

db = MySQLdb.Connect("localhost", "vpsee", "password", "test")
cursor = db.cursor()
query = "SELECT * FROM test_mark"
cursor.execute(query)
while (1):
        row = cursor.fetchone()
        if row == None:
                break
        print "%s, %s, %s, %s" % (row[0], row[1], row[2], row[3])

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#!/usr/bin/python


db = MySQLdb.Connect("localhost", "vpsee", "password", "test")
cursor = db.cursor()
query = "SELECT * FROM test_mark"

while (1):
        
        if row == None:
                break
        print "%s, %s, %s, %s" % (row[0], row[1], row[2], row[3])

PHP

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#!/usr/bin/php

?php
$db = mysql_connect("localhost", "vpsee", "password");
mysql_select_db("test");
$result = mysql_query("SELECT * FROM test_mark");
while ($row = mysql_fetch_array($result)) {
        print "$row[0] $row[1] $row[2] $row[3]n";
}
?>

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#!/usr/bin/php

?php
$db = mysql_connect("localhost", "vpsee", "password");
mysql_select_db("test");
$result = mysql_query("SELECT * FROM test_mark");
while ($row = mysql_fetch_array($result)) {
        print "$row[0] $row[1] $row[2] $row[3]n";
}
?>