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8 Replies Latest reply: Aug 30, 2010 1:33 AM by 618702 RSS

ORA-30036: unable to extend segment by 8 in undo tablespace 'UNDO'

609092 Newbie
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Hello,

I have an OWB Mapping (which translates into a MERGE query) that often fails with the above error. I wanted to have more information on UNDO. What uses most UNDO?

Thanks.

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