No, You only need to issue 'ALTER USER deepak TEMPORARY TABLESPACE system'; In that way the default temporary tablespace is overruled for the user specified. If you want to do this for all users you can execute somethng like this from SQL*Plus. set hea off set pagesize 0 SELECT 'ALTER USER '||USERNAME||' TEMPORARY TABLESPACE system;' FROM DBA_USERS SPOOL deepak.sql / @deepak.sql That helps you to change all users in an efficient way. Best regards, Carel-Jan Engel === If you think education is expensive, try ignorance. (Derek Bok) === On Mon, 2005-09-26 at 11:02 +0530, DBA Deepak wrote: > Will it not use the default temp TS of the Database? > >