(PHP 4, PHP 5, PECL odbtp >= 1.1.1)

mssql_select_dbSelect MS SQL database


This function was REMOVED in PHP 7.0.0.

Alternatives to this function include:


bool mssql_select_db ( string $database_name [, resource $link_identifier ] )

mssql_select_db() sets the current active database on the server that's associated with the specified link identifier.

Every subsequent call to mssql_query() will be made on the active database.

Список параметров


The database name.

To escape the name of a database that contains spaces, hyphens ("-"), or any other exceptional characters, the database name must be enclosed in brackets, as is shown in the example, below. This technique must also be applied when selecting a database name that is also a reserved word (such as primary).


A MS SQL link identifier, returned by mssql_connect() or mssql_pconnect().

If no link identifier is specified, the last opened link is assumed. If no link is open, the function will try to establish a link as if mssql_connect() was called, and use it.

Возвращаемые значения

Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.


Пример #1 mssql_select_db() example

// Create a link to MSSQL
$link mssql_connect('KALLESPC\SQLEXPRESS''sa''phpfi');

// Select the database 'php'

Пример #2 Escaping the database name with square brackets

// Create a link to MSSQL
$link mssql_connect('KALLESPC\SQLEXPRESS''sa''phpfi');

// Select the database 'my.database-name'

Смотрите также


Use of square brackets to enclose the database name is also necessary if the name contains a dot: '.' 


Produces the error:
Warning: mssql_select_db(): Sybase:  Server message:  Could not locate entry in sysdatabases for database 'Company'. No entry found with that name. Make sure that the name is entered correctly. (severity 16, procedure N/A) in

Will select successfully
2008-08-20 14:59:06
I have noted that mssql_select_db fails if the database name contains a dash or hyphen. for example a database named foo-bar will fail and the error that is returned indicates that the name was interpreted as only 'foo'
2010-10-28 15:37:43

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