Monthly Archives: April, 2015

The Importance of DBA_ROLLBACK_SEGS – 3 of 4

    Does anyone notice a pattern here with the post titles?   Anyway, I was loading my priceless collection of Dilbert strips into my database when it crashed and burned: Trying to restart the database, my undo tablespace is gone: SQL> startup ORACLE instance started. Total System Global Area 2499805184 bytes Fixed Size 2927480 bytes …

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