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Table move - table has grown from 30gb to 300gb

edited Jan 29, 2020 10:39AM in Database Administration (MOSC) 8 comments

Hi,

I am moving some tables from one tablespace to another. After the move a few tables have a much bigger segment size than before.

e.g. one has a segment size before the move of 30gb and after the move it has a size of 300gb?

I use -> ALTER TABLE TEST MOVE ONLINE TABLESPACE TS_NEW LOGGING PARALLEL 4 UPDATE INDEXES

I thought that it may has to do something with compression but compression is DISABLED (checked before and after the move in dba_tables).

Any idea? At the moment I have no explanation for that?

thx t-1000

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