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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.SWITCH_SNAPSHOT_MASTER

Synopsis

The SWITCH_SNAPSHOT_MASTER procedure lets you switch a snapshot replication group to a different master site. This procedure changes the master site for the specified snapshot group. The new master site must contain a replica of the replication group gname. The next time the snapshot group refreshes, Oracle performs a full refresh. Putsnapshot logs on the master tables at the new master site so that you can use fastrefreshes.

The specifications differ for Oracle7 and Oracle8 as follows.

Oracle7 specification:

PROCEDURE DBMS_REPCAT.SWITCH_SNAPSHOT_MASTER
   (gname IN VARCHAR2 := '',
    master IN VARCHAR2,
    execute_as_user IN BOOLEAN := FALSE,
    sname IN VARCHAR2 := '');

Oracle8 specification:

PROCEDURE DBMS_REPCAT.SWITCH_SNAPSHOT_MASTER
   (gname IN VARCHAR2 := '',
    master IN VARCHAR2)

Parameters

Parameter Name

Description

gname

Name of the snapshot group.

master

Name of the new master site.

execute_as_user

(Oracle7 only)

FALSE (the default) indicates that the remote system will authenticate calls using the authentication context user who originally queued the RPC; TRUE indicates that the remote system will use authentication context of the session user.

sname (Oracle7 only)

Schema name (provided for pre-Oracle 7.3 compatibility).

Exceptions

Exception Name

Number

Description

commfailure

–23317

Unable to communicate with the master site.

nonmaster

–23312

The master parameter is not a master site.

nonsnapshot

–23314

Calling site is not a snapshot site.

Restrictions

  • The new master ...

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Publisher Resources

ISBN: 1565924320Supplemental ContentCatalog PageErrata