SEG$ Is Not Updated By Changes Frequently For Lob Segment

(Doc ID 2363751.1)

Last updated on FEBRUARY 24, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 and later
Information in this document applies to any platform.

Symptoms

On : 12.1.0.2 version, RDBMS

SEG$ is not updated frequently by changes in index or lob segment

After inserting lots of data into the LOB segment, however sys_dba_segs didn't reflect the change, blocks & extents remains small.

Below is the testcase to load data into a LOB segment:

Applied patch 12963364, but it didn't help. 

Cause

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