change management of the space segment

Hi friends,

Database: 10g
OS: all

(1) after a tablespace is created, can we change from automatic to manual or automatic segment space management?
(2) 9i, can we move tablespace SYSTEM (what is local) to the dictionary by using tablespace_migrate_from_local. I know that we cannot do this in 10g.

Thanks in advance.

1. No, you cannot change the Segment space management. You must create a new Tablespace and MOVE / REBUILD your tables/indexes in the new tablespace.

2. No, you cannot use "TABLESPACE_MIGRATE_FROM_LOCAL" against the SYSTEM. It is documented in the manual provided in the PL/SQL Packages and Types to 9.2
"This procedure migrates a locally managed tablespace for a dictionary managed tablespace. You cannot use this procedure for the SYSTEM tablespace. ... Storage space should be kept online and read/write during the migration. Migration of temporary tablespaces and spaces of SYSTEM tables are not supported. »

SYSTEM can be migrated from local dictionary that all Dictionary Managed Tablespaces were migrated to the Local. However, you cannot return back to Dictionary SYSTEM.

Tags: Database

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