sql - How to stop oracle undo process? -

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i want know how stop undo process of oracle ? tried delete millions of rows of big table , in middle of process killed session started undo delete , bout 2 hours database got dramatically slow. didn't want undo process continued. there way stop ?

row-by-row delete processes can, you've found, exceedingly slow. if deletions done in single transaction, appears case here, can become slower. might want consider following options:

  1. if you're deleting rows in table might want consider using truncate table statement.

  2. if you're not deleting rows in table should change procedure commit after number of rows deleted.

in meantime you're going have wait until rollback process completes.

share , enjoy.


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