QlikView Reference Manual.pdf

5 OLE DB AND ODBC
OLE DB AND ODBC
5.1 OLE DB
QlikView supports the OLE DB interface for connection to external data sources.
You can access a great number of external databases via the Microsoft OLE DB Provider
for ODBC Drivers.
5.2 When Is the ODBC Interface Needed?
It is necessary to have the ODBC (Open DataBase Connectivity) interface installed if
you want to access a general database. The alternative is to export data from the database
into a file that is readable to QlikView.
Normally some ODBC drivers are installed with the operating system. Additional
drivers can be bought from software retailers, found on the Internet or delivered from
your DBMS manufacturer. Some drivers are redistributed freely.
The ODBC interface described here is the interface on the client computer. If you
plan to use ODBC to access a multi-user relational database on a network server, you
might need additional DBMS software that allows a client to access the database on
the server. Contact your DBMS supplier for more information on the software
needed.
QlikView works with both 32-bit and 64-bit ODBC drivers. It is however very
important to use the corresponding versions of the ODBC drivers and the program
version. The 32-bit version of QlikView will only work with the 32-bit ODBC drivers.
However, the 64-bit version will work with both 32-bit and 64-bit ODBC drivers.
Is the Correct ODBC Driver Installed?
On a 64-bit platform it is possible to use both 32-bit and 64-bit applications.
It is also possible to run both 32-bit and 64-bit ODBC drivers.
When using the 64-bit versions of ODBC and QlikView, the ODBC Data
Source Administrator is found in the Control Panel, Administrative
Tools.
When using the 32-bit versions of ODBC and QlikView, you must start the
32-bit administrator via the executable file, odbcad32.exe, that is located in
the SysWOW64 folder, usually c:\windows\SysWOW64.
According to Microsoft, in the 64-bit versions of the operating systems, the
system32 folder, usually c:\windows\system32, contains only 64-bit files. If
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