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Database Abstraction Layer for PHP

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v5:database:odbc

ODBC

In addition to the genric ODBC driver for use with Windows ODBC drivers, there are additional ODBC drivers that provide extended support for database specific functions


odbc

Specification
Driver Nameodbc
Data Providerodbc
StatusActive1)
WindowsYes
UnixNo
ADOdb V5Yes
ADOdb V6Yes
Alternatives

PDO driver for ODBC

  • This generic driver can be used with any database with ODBC connection support.
  • Connections can only be made using DSN connection strings or pre-defined ODBC connections.
  • Performance and functionality may be limited.
  • Writing portable applications that use this driver is not recommended.
  • When configuring connections on Windows, ensure that the ODBC driver configuration (32 Bit/64 Bit) matches the installed PHP version

Setting The Cursor Mode

All ADOdb ODBC drivers can configure an appropriate cursor mode. The following modes are available through PHP.

  • SQL_CUR_USE_IF_NEEDED
  • SQL_CUR_USE_ODBC
  • SQL_CUR_USE_DRIVER

The cursor is set by setting the curmode prior to the connect statement

include 'adodb/adodb.inc.php';
$db = newAdoConnection('odbc');
 
$db->curmode = SQL_CUR_USE_IF_NEEDED;
 
$db->connect('northwind');

odbc_mssql

Specification
Driver Nameodbc_mssql
Data Providerodbc
StatusActive2)
WindowsYes
UnixNo
ADOdb V5Yes
ADOdb V6Yes
Alternatives

SQL Server

When used on Windows clients, this driver needs the Microsoft SQL server native client. There are feature limitations compared to the mssqlnative driver, use of that is always recommended. If you are using the driver with SQL Server versions 2012 and higher, consider using the odbc_mssql2012 driver instead, as 2012+ database specific fixes will be placed into that driver.


odbc_mssql2012

From ADOdb V5.21
Specification
Driver Nameodbc_mssql2012
Data Providerodbc
StatusActive3)
WindowsYes
UnixNo
ADOdb V5Yes
ADOdb V6Yes

When used with SQL Server 2012, concatenation of strings results in a different behaviour compared with earlier versions. This article explains the difference.


odbc_oracle

Specification
Driver Nameodbc_oracle
Data Providerodbc
StatusActive4)
WindowsYes
UnixNo
ADOdb V5Yes
ADOdb V6Yes

After connection, the date format is automatically set by the driver by executing the following statement:

$sql = "ALTER SESSION SET NLS_DATE_FORMAT='YYYY-MM-DD HH24:MI:SS'";
$db->execute($sql);

odbc_db2

Specification
Driver Nameodbc_db2
Data Providerodbc
StatusInactive5)
WindowsYes
UnixNo
ADOdb V5Yes
ADOdb V6Yes
Alternatives

IBM DB2 Native Mode Driver

Connects to DB2 database using either the IBM or 3rd party ODBC driver


If the driver supports it setting the Cursor Type to SQL_CUR_USE_ODBC can provide substantial performance improvements. See top of this page for more information.

USING CLI INTERFACE

There were reports that the $host and $database params have to be reversed in Connect() when using the CLI interface.

System Error 5

IF you get a System Error 5 when trying to Connect/Load, it could be a permission problem. Give the user connecting to DB2 full rights to the DB2 SQLLIB directory, and place the user in the DBUSERS group.


Feature Limitations

ODBC connections have functionality limitations include transactional handling. See the Feature Matrix for more information

1) , 2) , 3) , 4)
This driver is actively supported by ADOdb project members
5)
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/odbc.txt · Last modified: 2017/04/21 11:49 (external edit)