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Oracle Distributed Systems
book

Oracle Distributed Systems

by Charles Dye
April 1999
Intermediate to advanced content levelIntermediate to advanced
552 pages
15h 39m
English
O'Reilly Media, Inc.
Content preview from Oracle Distributed Systems

Name

DBMS_REPCAT.ADD_MASTER_DATABASE

Synopsis

The ADD_MASTER_DATABASE procedure adds a master site to an existing replication group and initializes all objects at the new site. The specifications differ for Oracle7 and Oracle8 as follows.

Oracle7 specification:

PROCEDURE DBMS_REPCAT.ADD_MASTER_DATABASE
   (gname     IN VARCHAR2 := '',
    master    IN VARCHAR2,
    use_existing_objects IN BOOLEAN := TRUE,
    copy_rows IN BOOLEAN := TRUE,
    comment   IN VARCHAR2 := '',
    propagation_mode IN VARCHAR2 := 'ASYNCHRONOUS',
    sname IN VARCHAR2 := '');

Oracle8 specification:

PROCEDURE DBMS_REPCAT.ADD_MASTER_DATABASE
   (gname     IN VARCHAR2 := '',
    master    IN VARCHAR2,
    use_existing_objects IN BOOLEAN := TRUE,
    copy_rows IN BOOLEAN := TRUE,
    comment   IN VARCHAR2 := '',
    propagation_mode IN VARCHAR2 := 'ASYNCHRONOUS');

It is generally easier to instantiate all objects at the new master site first. That way, the call to ADD_MASTER_DATABASE does not have to perform DDL to create the schema or send all of the data across a network link. If you instantiate the objects first, the call to ADD_MASTER_DATABASE only has to generate replication support for the objects and update other master sites with the new master’s existence.

Parameters

Parameter Name

Description

gname

Name of the replication group to which master site is being added.

master

Global name of the new master site.

use_existing_objects

Reuse existing objects at the new site.

copy_rows

Copy rows from the invoking site to the new master site.

comment

Comment on new master site, visible in DBA_REPSITES ...

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Publisher Resources

ISBN: 1565924320Supplemental ContentCatalog PageErrata