Oracle commonly uesd tables/views and processes（二）

一、oracle commonly table
1、dba_extents #describes the extents comprising the segments in all tablespaces in the database.

commonly column
owner
segment_name
partition_name
tablespace_name
blocks
bytes

2、dba_segments#describes the storage allocated for all segments in the database.

owner
segment_name
partition_name
segment_type *
segment_subtype # subtype of lob segment :sourcefile assm mssm and null
tablespace_name
bytes

NOTE：The next Blog describe the principles of  Oracle 12C RAC .

标签：tables,processes,extents,views,dba,segments,commonly,namepartition,segment
来源： https://blog.51cto.com/11298469/2451078