in reply to DBD::ODBC::st execute failed: [Microsoft][ODBC SQL Server Driver]Connection is busy with results for another hstmt
This is virtually the same question as you asked at DBI DBD::ODBC, Create a table, drop its constraints, then recreate it again!. See my reply at Re: DBI DBD::ODBC, Create a table, drop its constraints, then recreate it again!.