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Database Abstraction Layer for PHP

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v5:database:microsoft_sql_server

Microsoft SQL Server

Description

There are 2 supported drivers that allow connections to Microsoft SQL Server databases. The first, mssqlnative allows connections from Windows Clients to Microsoft SQL Server databases versions 2008 and up, and uses the Microsoft Native Client libraries. The second, mssql allows connections from Unix based clients using the freetds libraries.

SQL Server 2003

Connecting to SQL server 2003 creates a difficulty There is no support for native client connections, and the alternative method, using php_mssql.dll was removed in PHP 5.3. The only alternative is to use a generic ODBC driver that does not require the Microsoft Native Client libraries.


mssqlnative

Specification
Driver Namemssqlnative
Data Providermssqlnative
StatusActive1)
WindowsYes
UnixNo
ADOdb V5Yes
ADOdb V6Yes
Alternatives

PDO driver for SQL Server
ODBC driver for SQL Server

This is the preferred driver for connecting to a SQL server database from Windows clients.

This driver was contributed by Microsoft and provides connections to SQL server databases greater than SQL Server 2003. It requires PHP version 5.3 or greater, Microsoft native client software and the appropriate PHP driver.

Sequences are supported in native mode in SQL Sever 2012, and emulated in earlier versions.


DateTime Fields

The default behavior for the PHP mssqlnative driver is to return date/time fields as a PHP dateTime object, that looks like this:

[RequiredDate] => DateTime Object
(
    [date] => 1996-08-01 00:00:00.000000
    [timezone_type] => 3
    [timezone] => America/Denver
)

However, in order to improve portability, the default behaviour of the ADOdb mssqlnative driver is to return the date as a string:

[RequiredDate] => 1996-08-01 00:00:00.000000

In order to return the dateTime as an object, the following action is required:

$db = ADONewConnection('mssqlnative');
$db->setConnectionParameter('ReturnDatesAsStrings',false);
$db->connect('SERVER\SQLEXPRESS','user','password','NORTHWND');

Unicode Strings

You can set the character set to UTF-8 using:

$db = ADONewConnection('mssqlnative');
$db->setConnectionParameter('characterSet','UTF-8');
$db->connect('SERVER\SQLEXPRESS','user','password','NORTHWND');

mssql (Unix)

Specification
Driver Namemssql
Data Providermssql
StatusActive2)
WindowsNo
UnixYes
ADOdb V5Yes
ADOdb V6Yes
Alternatives

PDO driver for FreeTDS

This is the preferred driver for connecting to a SQL server database from Linux/Unix clients. This driver provides access to Microsoft SQL Server databases from unix systems via Freetds


mssql (Windows)

Specification
Driver Namemssql
Data Providermssql
StatusObsolete3)
WindowsYes
UnixNo
ADOdb V5Yes 4)
ADOdb V6No

This driver was the primary connection method to SQL Server databases up to PHP Version 5.2. The windows dll associated with this driver (php_mssql.dll) was removed from the standard PHP distribution in PHP Version 5.3. There is no community support for this driver.


mssqlpo

Specification
Driver Namemssqlpo
Data Providermssql
StatusInactive5)
WindowsNo
UnixYes
ADOdb V5Yes
ADOdb V6Yes

This driver provides undocumented portability extensions to the Unix mssql driver

mssql_n

Specification
Driver Namemssqlpo
Data Providermssql
StatusInactive6)
WindowsNo
UnixYes
ADOdb V5Yes
ADOdb V6Yes

This driver appears to provide Unicode enhancements to the mssql driver

1) , 2) This driver is actively supported by ADOdb project members
3) This driver will be removed in ADOdb version 6
4) PHP Version 5.2 and lower
5) , 6) This driver is not actively supported or enhanced by ADOdb project members, but you can provide fixes and enhancements if you have the expertise
v5/database/microsoft_sql_server.txt · Last modified: 2017/04/21 11:49 (external edit)