Data source name not found and no default driver specified.

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This means you did not create the proper DSN. You need to create the DSN using (for example) odbcad32.exe, or use a DSNless connection string. See http://connectionstrings.com for how to create the various connection strings.

Also, a Google search for the error message turns up many relevant replies.

In reply to Re: Cannot connect Perl to PostgreSQL using ODBC (SQL-IM002) by Corion
in thread Cannot connect Perl to PostgreSQL using ODBC (SQL-IM002) by lr3p

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