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How to Resolve ORA-03297 When Resizing a Datafile by Finding the Table Highwatermark (Doc ID 130866.1)

Last updated on FEBRUARY 04, 2022

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.


In a number of cases it is desired to shrink an oversized datafile. The challenge is then up to find to which size the datafile can be shrunk? Using the trial and error approach will likely give:

The error is due to fact that there are allocated extents between the size to resize/shrink to and the end-of-file (might be space management blocks, so not necessary belonging to a segment).


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