Saturday, October 1, 2011

Dac

DAC stand for Datawarehouse  Administration Console

DAC stands for Data Warehouse Application Console.  It is an essential component of Oracle BI application architecture.
DAC serves the following purposes:
1. DAC is a metadata driven administration and deployment tool for ETL and data warehouse objects
2. Used by warehouse developers and ETL Administrator

3. Application Configuration
  • Manages metadata-driven task dependencies and relationships
  • Allows creating custom ETL execution plans
  • Allows for dry-run development and testing
4. Execution
  • Enables parallel loading for high performance ETL
  • Facilitates in index management and database statistics collection
  • Automates change capture for Siebel OLTP
  • Assists in capturing deleted records
  • Fine grain restartability
5. Monitoring
  • Enables remote admin and monitoring
  • Provides runtime metadata validation checks
  • Provides in-context documentation

DAC Running modes

Orange ->  Indicates Running  State
Red -> Indicates not Running 
Green ___> Executing ETL


DAC Life Cycle:



  1. Step: step db connections
  2.  set up ETL  processes
  3. setup email receipients
 Desing : -> define application objects
             -> design execution plans

Execution: Define scheduling parameters
              ->Access runtime controls to restart or stop 

Monitor: Monitor runtime Execution of DWH

DAC Object Hierarchy




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