HS Compression Information Is Not Showing In DBA_TABLES For Partitioned Tables
(Doc ID 1453534.1)
Last updated on FEBRUARY 21, 2024
Applies to:
Oracle Database - Enterprise Edition - Version 11.2.0.1 and laterOracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.
What is the Location of compression information for partitioned and non-partitioned tables?
When we create a NON-Partition table we can find the details in DBA_TABLES about compression from column COMPRESS(ENABLED/DISABLED).
When creating a partition table with compression for query low in the table level then checking DBA_TABLES, the values for columns COMPRESS and COMPRESS_FOR are NULL.
However, compression details are found in DBA_TAB_PARTITIONS.
When we create a NON-Partition table we can find the details in DBA_TABLES about compression from column COMPRESS(ENABLED/DISABLED).
Is this a normal scenario for Partition tables?
Do you check the compression property from dba_tab_partitions in case of a Partition table?
Goal
Enable the customer to gather information about the use of compression within the database.
Solution
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