Thanks John for the valuable Advice. Since 2000 Objects are scattered across 55 Tablespaces, but of Total Data Size 8 GB only, I achieved the Data transfer from 1 Schema to Another thru expdp - SCHEMAS=OWNER1 / impdp - REMAP_SCHEMA=OWNER1:OWNER2 Cheers ________________________________ From: John Darrah [mailto:darrah.john@xxxxxxxxx] Sent: Wednesday, May 16, 2007 3:09 AM To: VIVEK_SHARMA Cc: oracle-l@xxxxxxxxxxxxx Subject: Re: Change Schema OWNER of ALL Objects in 10gR2 ? transport tablespace fromuser touser might work create user owner2; alter all tablespaces with objects owned by owner1 to read only status; exp transport_tablespace=y tablespaces= the tablespaces w/ objects owned by owner1 drop tablespaces imp transport_tablespace = y fromuser=owner1 touser=owner2 I'm not sure if this will work in your specific situation by its worth a look. On 5/14/07, VIVEK_SHARMA <VIVEK_SHARMA@xxxxxxxxxxx> wrote: Folks How can the Schema OWNER of ALL Objects Owned by (say) OWNER1 be Changed to OWNER2 in 10gR2? NOTE - OWNER2 does NOT exist in the Database. NOTE - Other / multiple schemas & respective Objects should remain unaffected. NOTE - Database is a Testing Database. Hence Downtime is NOT an issue. Qs Is Export , Import the the only way using 1 of the following? exp - OWNER=OWNER1 / imp - FROMUSER=OWNER1, TOUSER=OWNER2 , expdp - SCHEMAS=OWNER1 / impdp - REMAP_SCHEMA=OWNER1:OWNER2 Cheers **************** CAUTION - Disclaimer ***************** This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely for the use of the addressee(s). If you are not the intended recipient, please notify the sender by e-mail and delete the original message. Further, you are not to copy, disclose, or distribute this e-mail or its contents to any other person and any such actions are unlawful. This e-mail may contain viruses. Infosys has taken every reasonable precaution to minimize this risk, but is not liable for any damage you may sustain as a result of any virus in this e-mail. You should carry out your own virus checks before opening the e-mail or attachment. Infosys reserves the right to monitor and review the content of all messages sent to or from this e-mail address. Messages sent to or from this e-mail address may be stored on the Infosys e-mail system. ***INFOSYS******** End of Disclaimer ********INFOSYS***