One easy way to check would be to actually run both the options and see which takes less time. Regards, Vishal Gupta From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Bellows, Bambi (Comsys) Sent: 26 March 2009 20:42 To: oracle-l@xxxxxxxxxxxxx Subject: Transportable tablespace set checks... Hey there Gang! Do you gain a substantial amount of time if you string together tablespaces to do the transport_set_check for as opposed to running them serially? For example, if I were to run exec sys.dbms_tts.transport_set_check('AAA1,AAA2,AAA3...AAA54'); would it be substantially faster than running: exec sys.dbms_tts.transport_set_check('AAA1'); exec sys.dbms_tts.transport_set_check('AAA2'); exec sys.dbms_tts.transport_set_check('AAA3'); ... exec sys.dbms_tts.transport_set_check('AAA54'); ? TIA! Bambi.