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I will explain Undo_retention & Undo Tablespace in Oracle in this post.
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Tag Archives: undo_retention
PRVF-0002 : could not retrieve local node name
Hi, You can take PRVF-0002 : could not retrieve local node name error when you install Oracle database 12c R2.
Read More »ora-01555: snapshot too old: rollback segment number
Hi, If you get ORA-01555: snapshot too old error when you execute any query, then you have a problem with undo management or undo tablespaces.
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