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Results for conflict resolution


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Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Best Practices for Apply

Configure Conflict Resolutionthat you configure conflict resolution for that object. To simplify conflict resolution for tables … parameter to TRUE. If you configure conflict resolution at a destination database, then additional … column list for conflict resolution during apply

Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Oracle Streams Conflict Resolution

Delete Conflicts in an Oracle Streams EnvironmentA delete conflict occurs when two transactions originate at different databases, with one

Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Oracle Streams Conflict Resolution

Conflict Detection in an Oracle Streams Environmentprocess detects an update conflict if there is any difference between the old values for a row in a … detects a uniqueness conflict if a uniqueness constraint violation occurs when applying an LCR that … contains an insert or update operation. An apply process detects a delete conflict if it cannot find a row … row does not exist.

Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Oracle Streams Conflict Resolution

Avoid Specific Types of ConflictsIf a primary database ownership model is too restrictive for your application requirements, then you can use a shared ownership data model, which means that conflicts might be possible. Even so, typically you can use some simple strategies to avoid specific types of conflicts. Avoid Uniqueness Conflicts in an Oracle Streams Environment You can avoid uniqueness conflicts by ensuring that each database

Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Oracle Streams Conflict Resolution

Custom Conflict Handlerswhich you want to perform conflict resolution. Set the object_type parameter to TABLE. Set the … want an error handler to perform conflict resolution when an error is raised, then set the … error_handler parameter to TRUE. Or, if you want to include conflict resolution in your procedure

Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Oracle Streams Conflict Resolution

Stopping Conflict Detection for Nonkey ColumnsDBMS_APPLY_ADM package. For example, suppose you configure a time column for conflict resolution for … for a detailed example that uses time-based conflict resolution Oracle Database PL/SQL Packages and … You can stop conflict detection for nonkey columns using the COMPARE_OLD_VALUES procedure in the

Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Oracle Streams Conflict Resolution

Modifying an Existing Update Conflict Handlerand resolution column as the existing conflict handler. To modify the update conflict handler created … as the resolution column. You can modify this update conflict handler by specifying a different type … You can modify an existing update conflict handler by running the SET_UPDATE_CONFLICT_HANDLER

Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Oracle Streams Conflict Resolution

Control Over Conflict Detection for Nonkey ColumnsBy default, an apply process compares old values for all columns during conflict detection, but you … can stop conflict detection for nonkey columns using the COMPARE_OLD_VALUES procedure in the … DBMS_APPLY_ADM package. Conflict detection might not be needed for some nonkey columns. See Also … : \"Stopping Conflict

Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Oracle Streams Conflict Resolution

Displaying Information About Conflict DetectionYou can stop conflict detection for nonkey columns using the COMPARE_OLD_VALUES procedure in the … DBMS_APPLY_ADM package. When you use this procedure, conflict detection is stopped for updates and … column for which conflict detection has been stopped, run the following query: COLUMN OBJECT_OWNER … NO NO HR EMPLOYEES PHONE_NUMBER

Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Oracle Streams Conflict Resolution

Conflict Types in an Oracle Streams EnvironmentYou can encounter these types of conflicts when you share data at multiple databases: Update Conflicts in an Oracle Streams Environment Uniqueness Conflicts in an Oracle Streams Environment Delete Conflicts in an Oracle Streams Environment Foreign Key Conflicts in an Oracle Streams Environment

Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Oracle Streams Conflict Resolution

Conflict Resolution in an Oracle Streams EnvironmentAfter an update conflict has been detected, a conflict handler can attempt to resolve it. Oracle … Streams provides prebuilt conflict handlers to resolve update conflicts, but not uniqueness, delete … , foreign key, or ordering conflicts. However, you can build your own custom conflict handler to … resolve data

Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Oracle Streams Conflict Resolution

Uniqueness Conflicts in an Oracle Streams EnvironmentA uniqueness conflict occurs when the apply process applies a row LCR containing a change to a row … inserting a row into a table with the same primary key value. In this case, the transactions cause a uniqueness conflict.

Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Oracle Streams Conflict Resolution

Setting an Update Conflict Handlerillustrates using the MAXIMUM prebuilt method for time-based conflict resolution Oracle Database SQL Language Reference for information about data types … Set an update conflict handler using the SET_UPDATE_CONFLICT_HANDLER procedure in the … DBMS_APPLY_ADM package. You can use one of the following prebuilt methods when you create an

Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Oracle Streams Conflict Resolution

Removing an Existing Update Conflict Handlermethod, and specify the same table, column list, and resolution column as the existing conflict … You can remove an existing update conflict handler by running the SET_UPDATE_CONFLICT_HANDLER … procedure in the DBMS_APPLY_ADM package. To remove a an existing conflict handler, specify NULL for the … handler. For

Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Oracle Streams Conflict Resolution

9 Oracle Streams Conflict ResolutionStreams Environment Conflict Avoidance in an Oracle Streams Environment Conflict Resolution in an Oracle … Streams Environment Managing Oracle Streams Conflict Detection and Resolution Monitoring Conflict Detection and Update Conflict Handlers … Some Oracle Streams environments

Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Oracle Streams Conflict Resolution

Prebuilt Update Conflict Handlerscolumn lists and resolution columns are used in prebuilt update conflict handlers. A column list is a … resolution column is the column used to identify an update conflict handler. If you use a MAXIMUM or … MINIMUM prebuilt update conflict handler, then the resolution column is also

Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Oracle Streams Conflict Resolution

Monitoring Conflict Detection and Update Conflict Handlersreplication environment: Displaying Information About Conflict Detection Displaying Information About … Update Conflict Handlers See Also: Oracle Streams Concepts and Administration

Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Oracle Streams Conflict Resolution

Managing Oracle Streams Conflict Detection and ResolutionThis section describes the following tasks: Setting an Update Conflict Handler Modifying an … Existing Update Conflict Handler Removing an Existing Update Conflict Handler Stopping Conflict Detection … for Nonkey Columns See Also: \"Displaying Information About Update Conflict Handlers\"

Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Oracle Streams Conflict Resolution

Foreign Key Conflicts in an Oracle Streams EnvironmentA foreign key conflict occurs when the apply process applies a row LCR containing a change to a row

Streams Replication Administrator's Guide, 11g Release 2 (11.2)

Oracle Streams Conflict Resolution

Rows Identification During Conflict Detection in an Oracle Streams EnvironmentTo detect conflicts accurately, Oracle must be able to identify and match corresponding rows at different databases uniquely. By default, Oracle uses the primary key of a table to identify rows in a table uniquely. When a table does not have a primary key, you should designate a substitute key. A substitute key is a column or set of columns that Oracle can use to identify uniquely rows in the table.