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SharePlex 9.4 - Installation and Setup for Oracle Source

About this Guide Conventions used in this guide SharePlex pre-installation checklist Download the SharePlex installer Installation and setup for Oracle cluster Installation and setup for remote capture Install SharePlex on Linux and UNIX Install SharePlex on Windows Assign SharePlex users to security groups Set up an Oracle environment for replication Set up replication from Oracle to a different target type Generic SharePlex demonstration-all platforms Advanced SharePlex demonstrations for Oracle Solve Installation Problems Database Setup Utilities General SharePlex Utilities Uninstall SharePlex Advanced installer options Install SharePlex as root Run the installer in unattended mode SharePlex installed items

Control Oracle DDL replication

By default, SharePlex replicates some Oracle DDL for objects that are listed in the active configuration (explicitly or by wildcard), but you can expand this support with parameter settings.

Important!

  • For the most current information about supported DDL and requirements or limitations, see the SharePlex Release Notes provided with this release. That information may supercede what is documented here.
  • DDL replication is supported only to Oracle targets, except for ALTER TABLE to ADD COLUMN or DROP COLUMN, which are supported for all SharePlex targets.

SharePlex provides default DDL support for objects in the configuration file. You can expand this support through parameter settings.

See the SharePlex Release Notes for detailed information about the DDL that is supported by SharePlex.

Default support for Oracle DDL

SharePlex provides some basic DDL support by default.

DDL for existing objects

By default SharePlex replicates:

  • TRUNCATE TABLE 

  • ALTER TABLE to:

    ADD, MODIFY, DROP, SPLIT, COALESCE, MOVE, TRUNCATE, EXCHANGE PARTITION/SUBPARTITION

    ADD, MODIFY, or DROP columns

    when:

    • the affected object exists in the source and target at the time of activation and
    • its name is listed in the configuration file (explicitly or through wildcard).

This functionality is controlled by the SP_OCT_REPLICATE_DDL parameter. The valid values are as follows:

0 (disable replication of both ALTER TABLE and TRUNCATE)

1 (enable ALTER replication only)

2 (enable TRUNCATE replication only)

3 (enable replication of ALTER and TRUNCATE)

DDL for objects added after activation

By default, the SharePlex Auto-Add feature is also enabled to provide DDL support for tables and indexes that are created after activation. When SharePlex detects a CREATE statement for one of these objects and its name satisfies a wildcard in the configuration file, SharePlex does the following:

  • replicates the CREATE to add the object to the target
  • adds the object to replication
  • maintains that object through future DDL and DML changes

The Auto-Add feature is controlled by the SP_OCT_AUTOADD_ENABLE parameter, which is set to 1 (enabled) by default.

See the SharePlex Reference Guide for details about this parameter.

Optional DDL on objects in replication

You can enable the replication of the following DDL when it is issued on objects that are in the configuration file. To enable the replication of a DDL command, set the associated parameter to 1.

DDL command Set this parameter to 1
CREATE / DROP TRIGGER SP_OCT_REPLICATE_TRIGGER
CREATE / DROP SYNONYM SP_OCT_REPLICATE_SYNONYM
GRANT SP_OCT_REPLICATE_GRANT

See the SharePlex Reference Guide for details about these parameters.

Optional Auto-Add support for Oracle DDL

You can expand Auto-Add support to include any of the object types listed in the following table. The object is added to replication if its name satisfies a wildcard specification in the active configuration file.

To enable auto-add of individual object types

  1. Make certain the SP_OCT_AUTOADD_ENABLE parameter is set to 1.

  2. Set the appropriate parameter to 1, using the following table as your guide.

    DDL to auto-add Parameter to set to 1 Additional requirements
    CREATE / DROP SEQUENCE SP_OCT_AUTOADD_SEQ

    Set the SP_SYS_TARGET_COMPATIBILITY parameter to at least 8.6.3.

    CREATE /DROP MATERIALIZED VIEW* SP_OCT_AUTOADD_MV

    Set the SP_SYS_TARGET_COMPATIBILITY parameter to at least 8.6.2.

* SharePlex does not replicate materialized views to materialized views. SharePlex converts a CREATE MATERIALIZED VIEW to a CREATE TABLE, applies the CREATE TABLE to the target, and then replicates the DML that populates the view. SharePlex replicates DROP MATERIALIZED VIEW, but not ALTER MATERIALIZED VIEW. See the SharePlex Reference Guide for details about these parameters.

 

Expanded DDL support for objects outside replication

You can configure SharePlex to replicate DDL for certain objects that are not listed in the configuration file. SharePlex replicates the DDL statements, but does not replicate any data change operations made to the objects because they are not part of active replication. Therefore, SharePlex does not maintain synchronization of these objects on the target. The objects must exist in the source and target prior to configuration activation.

NoteS:

Expanded DDL replication supports not only tables and sequences but also a wide range of other objects such as procedures, functions, users, and views, which are not part of replication. Some of these objects may have underlying objects that are in replication. In those cases, Expanded DDL replication applies not only to the object that is outside the replication configuration, but also to the underlying objects that are in replication.

SharePlex does not support the Oracle Flashback Table feature. If the SP_REPLICATE_ALL_DDL parameter is enabled (value of 1), SharePlex may try to replicate the flashback DDL, which will return an error. To perform Flashback Table on a table that is in replication, use the following procedures to work around this issue:

  1. Remove source objects from replication
  2. Perform the flashback
  3. Add or change objects in an active configuration

To replicate DDL for objects outside the replication configuration

Set the SP_OCT_REPLICATE_ALL_DDL parameter to 1.

See the SharePlex Reference Guide for details about this parameter.

See the SharePlex Release Notes for more information about supported DDL for objects that are not in the configuration file.

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