I've had a similar issue before myself and I'd guess an index is not being used. By default DBD::Oracle binds all parameters as strings and this can lead to Oracle deciding that since the parameter is a string and that does not match an integer then the index will not be used. Remove your parameters and just do the entire SQL as a string and see if that improves it. If it does, you have probably hit this problem. Then you need to look at ora_type => ora_xxx and SQLCS_IMPLICIT. Search for my posting on the dbi-users list in the last 4 years where I had the same issue.

In reply to Re: DBI & DBD::Oracle -- Executing a statement handle across a database link by mje
in thread DBI & DBD::Oracle -- Executing a statement handle across a database link by Anonymous Monk

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