Setting this variable ON causes all invocations of I$IO using the EXECUTE opcode to unlock all records. Normally records are unlocked when a transaction finishes. But if users do their own transaction management using sql.acu (which calls I$IO using the EXECUTE opcode), then the interface never knows to unlock records, because we don't check the text sent to the database to see if it associated with a transaction. While the default value is "Off", this configuration variable can also take values of "Yes," "No," "True," "False," or "On."