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MySQL Select database use and mysql_select_db using the detailed

Source: Internet
Author: User
Tags php script
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From the command prompt, select the MySQL database:

It is very simple to select a specific database mysql> prompt. Select a specific database, and you can use the SQL command.

Example:
The following is an example of selecting a database called tutorials:

The code is as follows Copy Code

[root@host]# mysql-u Root-p
Enter password:******
mysql> use tutorials;
Database changed
Mysql>

Now you have selected the Tutorial database tutorial database and all subsequent operations will be done.

Note: All database names, table names, and field names in the table are case-sensitive. So you will have to use the Prpoer name and give any SQL commands.

use PHP script to select MySQL database :

PHP provides a function mysql_select_db select a database. Returns true successfully, otherwise returns false.

Here is an example showing how to select a database.

The code is as follows Copy Code

<title>selecting MySQL database-by www.111cn.net</title>
<body>
<?php
$dbhost = ' localhost:3036 ';
$dbuser = ' guest ';
$dbpass = ' guest123 ';
$conn = mysql_connect ($dbhost, $dbuser, $dbpass);
if (! $conn)
{
Die (' Could not connect: '. Mysql_error ());
}
Echo ' Connected successfully ';
mysql_select_db (' tutorials ');
Mysql_close ($conn);
?>
</body>

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