It's straight out of the DBI docs:

Portable applications should not assume that a new statement can be prepared and/or executed while still fetching results from a previous statement.

I do not have personal experience with using Perl to talk with MS SQL or Oracle databases, but I know for sure that only one query can be active at a time per MS SQL database connection in VB. My coworker has said the same for Oracle (using an unspecified language other than VB and Perl).

In reply to Re^3: Multiple DB Queries using DBI by ikegami
in thread Multiple DB Queries using DBI by awohld

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