I am getting ORA-03124: two-task internal error (DBD ERROR: OCIStmtExecute) when using DBD::Oracle version 1.23. This is a select query. Oracle server is 11g and client is also 11g. The select statement is like this: select col1, col2 from table where key = '12335|678999|345667'; The interesting thing is the query worked at the very first time, and failed on second time and onwards. My question is: does DBD::Oracle 1.23 (latest version) support Oracle 11g client and server? If it is, is this a known bug in Oracle 11g server or client or in DBD::Oracle module? Thanks, --xinhuan