Shell, Perl, Python, PHP access to MySQL database code instance _linux Shell

A simple bash script was written in the afternoon to test the program, enter a test case file, output the use cases and results that did not pass the test, and then save the results to the database. How do I directly access a database in a bash script? Since you can manipulate the database directly in the shell with MySQL commands, you should also be able to manipulate the database in shell script by invoking MySQL. For example, use the following bash shell script to query the database:

Bash

Copy Code code as follows:

#!/bin/bash

Mysql-uvpsee-ppassword Test << Eofmysql
SELECT * from Test_mark;
Eofmysql

If you need a complex database operation, it is not recommended to use Shell script, the perl/python/php operation of the database is very convenient, respectively, through the Perl dbi/python mysqldb/php MySQL Module interface to operate the database. Here are a few simple examples of these three different language connections and query databases (to remove unnecessary code for simplicity and reduced space):

Perl

Copy Code code as follows:

#!/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 "@row \ n";
}

Python

Copy Code code as follows:

#!/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])

PHP

Copy Code code as follows:

#!/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];
}
?>