mrscr has asked for the wisdom of the Perl Monks concerning the following question:

HI all,

I want to connect sql server on my machine to application which is on another machine and i am doing this by ODBC calls .I made one file dsn and used the perl syntax as

 my $connection = new Win32::ODBC($DSN);where $DSN="C:/Program Files/Common Files/ODBC/Data Sources/Test.dsn";

the error i got is :

 Error connecting to SQLServer
Use of uninitialized value in concatenation (.) or string at C:/Perl/s
+ite/lib/Wi
n32/ODBC.pm line 785.
Error : [911] [] "[Microsoft][ODBC Driver Manager] Data source name no
+t found an
d no default driver specified"/

[download]

please help me to get out of this

Replies are listed 'Best First'.
Re: sql connectivity
by EdwardG (Vicar) on Jan 05, 2007 at 12:32 UTC

    $DSN probably needs to be a connection string rather than a filename.

    For example,

    $DSN="Driver={SQL Server};Server=myServerAddress;Database=myDataBase;Uid=myUsername;Pwd=myPassword;"

    See also http://www.connectionstrings.com

    See also perldoc Win32::ODBC

    NAME
    Win32::ODBC - ODBC Extension for Win32

SYNOPSIS
    To use this module, include the following statement at the top of 
+your
    script:

        use Win32::ODBC;

    Next, create a data connection to your DSN:

        $Data = new Win32::ODBC("MyDSN");

    NOTE: *MyDSN* can be either the *DSN* as defined in the ODBC
    Administrator, *or* it can be an honest-to-God *DSN Connect String
+*.

        Example: "DSN=My Database;UID=Brown Cow;PWD=Moo;"

    [download]

     

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Re: sql connectivity
by jbert (Priest) on Jan 05, 2007 at 12:39 UTC
    I think this is the relevant error message: "Data source name not found and no default driver specified".

    You've passed a filename as the DSN, but the docs say: "NOTE: MyDSN can be either the DSN as defined in the ODBC Administrator, or it can be an honest-to-God DSN Connect String."

    If you look in your ODBC administrator for the name of your DSN (not the filename) you might have more luck.

    You might want to give a little thought as to whether using Win32::ODBC is the way to go. I think most perl code uses DBI (or a layer over the top of DBI) as the database interface and there is a DBD::ODBC module to provide an ODBC back-end to DBI. There might be some ODBC-specific API calls in Win32::ODBC you need, though.

    Using DBI might allow your code to be more portable (to other DBs or platforms) in the future.

[reply]
      And DBI has a driver to access ODBC - DBD::ODBC
      just another cpan module author
[reply]

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