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Documentation: Capabilities for Oracle - DSS 6 | Data Source Solutions Documentation

Capabilities for Oracle

This section lists the Capabilities of Data Source Solutions DSS when using 'Oracle'. For more information about the pre-requisites, access privileges, and other configuration requirements, see Oracle Requirements.

Capture

DSS supports the following capabilities on Oracle:

  • Capture changes from location (Oracle from version 11.1 to version 21.3).
  • Log-based capture (capture from DBMS logging system) (Oracle from version 11.1 to version 21.3).
  • Capture from Archive log files only (Oracle from version 11.1 to version 21.3, except on Amazon RDS for Oracle).
  • Log-based capture of DDL statements using action AdaptDDL (Oracle from version 11.1 to version 21.3).
  • Log-based capture of tables without a primary key (Oracle from version 11.1 to version 21.3).
  • Direct access to logs on a file system (Oracle from version 11.1 to version 21.3, except on Amazon RDS for Oracle).
  • Access to logs using SQL interface (Oracle from version 11.2.0.3 to version 21.3).
  • Log-based capture of tables with LOB column (Oracle from version 11.1 to version 21.3).
  • Log-based capture from hidden rowid/RRN column (ColumnProperties with parameter CaptureFromRowId) (Oracle from version 11.1 to version 21.3).
  • Rewind log-based capture to specific time (dssactivate option -i) (Oracle from version 11.1 to version 21.3).
  • Rewind log-based capture to the beginning of currently active oldest transaction (Oracle from version 11.1 to version 21.3).
  • Online refresh using accurate LSN/SCN (Oracle from version 11.1 to version 21.3).
  • Online refresh skips capture log records early in scanner (Oracle from version 11.1 to version 21.3).
  • Populates column dss_cap_user for use in ColumnProperties {dss_cap_user} substitutions (Oracle from version 11.1 to version 21.3).
  • Log-based capture of truncate table statements (Oracle from version 11.1 to version 21.3).
  • Multiple log-based capture jobs can capture from same database (Oracle from version 11.1 to version 21.3).
  • Capture from tables with basic compression (Oracle from version 11.2.0.4 to version 21.3).
  • Capture from tables with compress for all operations' or 'create index ... compress (Oracle from version 11.2.0.4 to version 21.3).
  • Capture from tables with lob(...) store as securefile ( deduplicate compress ) (Oracle from version 11.2.0.4 to version 21.3).
  • Capture from tables with advanced index compression (Oracle from version 12.2 to version 21.3).
  • Capture from tables with advanced row compression (Oracle from version 12.0 to version 21.3).
  • Capture from tables with hybrid columnar compression (Oracle from version 11.1 to version 21.3).
  • Log-based capture checkpointing using location property Capture_Checkpoint_Frequency (Oracle from version 11.1 to version 21.3).
  • Read archives from an alternative directory (location property Archive_Log_Path on the capture location) (Oracle from version 11.1 to version 21.3).
  • Trigger-based capture (using the location property Capture_Method=DB_TRIGGER at the capture location). This method has been deprecated since 6.2.0/0. (Oracle from version 11.1 to version 21.3).
  • Location property Trigger_Quick_Toggle on the capture location (Oracle from version 11.1 to version 21.3).
  • Boundaries between transactions preserved by trigger-based capture (Oracle from version 11.1 to version 21.3).
  • Trigger-based capture jobs can be woken by db-event when change happens (Oracle from version 11.1 to version 21.3).

Repository Database

DSS supports Repository database on Oracle.

Integrate

DSS supports the following capabilities on Oracle:

  • Integrate changes into location (Oracle from version 11.1 to version 21.3).
  • Burst integration (Integrate with parameter Method=BURST) (Oracle from version 11.1 to version 21.3).
  • Integrate with parameter BurstCommitFrequency (Oracle from version 11.1 to version 21.3).
  • Continuous integration (Integrate with parameter Method=CONTINUOUS) (Oracle from version 11.1 to version 21.3).
  • Tables without a key and without TableProperties with NoDuplicateRows for continuous integration (Oracle from version 11.1 to version 21.3).
  • Continuous integrate with parameter OnErrorSaveFailed (Oracle from version 11.1 to version 21.3).
  • ColumnProperties with parameter SoftDelete (Oracle from version 11.1 to version 21.3).
  • Creation and update of DSS state tables (Oracle from version 11.1 to version 21.3).
  • Integrate with parameter DbProc (Oracle from version 11.1 to version 21.3).

DSS does not support the following capabilities on Oracle:

  • Append integration into TimeKey (Integrate with parameter Method=APPEND).
  • Disable/enable database triggers during integrate (with parameter NoTriggerFiring).

Bi-directional Replication

DSS supports the following capabilities on Oracle:

  • Detection of changes made by DSS in a bidirectional channel to prevent loop-back (Oracle from version 11.1 to version 21.3).
  • CollisionDetect with Log-based Capture (without parameter TimestampColumn) (Oracle from version 11.1 to version 21.3).
  • CollisionDetect with Trigger-based Capture (with location property Capture_Method=DB_TRIGGER on the capture location and CollisionDetect without parameter TimestampColumn) (Oracle from version 11.1 to version 21.3).
  • CollisionDetect with parameter TimestampColumn (Oracle from version 11.1 to version 21.3).

Refresh and Compare

DSS supports the following capabilities on Oracle:

  • dssrefresh or dsscompare from source location (Oracle from version 11.1 to version 21.3).
  • dssrefresh into target location (Oracle from version 11.1 to version 21.3).
  • Isolated table dssrefresh (option -i) into target location (Oracle from version 11.1 to version 21.3).
  • Row-wise dssrefresh into target location (option -g) (Oracle from version 11.1 to version 21.3).
  • Disable/enable foreign keys and secondary indices during dssrefresh (option -F) (Oracle from version 11.1 to version 21.3).
  • Disable/enable constraints check during dssrefresh (Oracle from version 11.1 to version 21.3).
  • Disable/enable triggers during dssrefresh (option -f) (Oracle from version 11.1 to version 21.3).
  • Replicate database sequences (using action DbSequence) (Oracle from version 11.1 to version 21.3).
  • Select data from each table from same consistent moment in time (dssrefresh options -Mnow, -Mscn=val, -Mdss_tx_seq=val, -Mtime) (Oracle from version 11.1 to version 21.3).

DSS does not support the following capabilities on Oracle:

  • Bulk load of multiple slices of same table can be done in parallel.

Other Capabilities

DSS supports the following capabilities on Oracle:

  • Call database procedure dbproc during replication jobs (AgentPlugin with parameter DbProc) (Oracle from version 11.1 to version 21.3).
  • DbObjectGeneration with parameter IncludeSQLFile (Oracle from version 11.1 to version 21.3).
  • International table and column names where DBMS is not configured with UTF-8 encoding (Oracle from version 11.1 to version 21.3).
  • Treat DBMS table names and columns as case sensitive if configured (location property Case_Sensitive_Names) (Oracle from version 11.1 to version 21.3).
  • Treat DBMS schema names as case sensitive if configured (location property Case_Sensitive_Names) (Oracle from version 11.1 to version 21.3).
  • Reduce width of datatype when selecting or capturing changes (ColumnProperties with parameter TrimDatatype) (Oracle from version 11.1 to version 21.3).
  • Distinguish and support capture from 'materialized views' (Oracle from version 11.1 to version 21.3).

DSS does not support the following capabilities on Oracle:

  • Use distribution key for parallelizing changes within a table (ColumnProperties with parameter DistributionKey).