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ODI - A Journey - DAY 1

REPOSITORY

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  1. WORK
  2. MASTER
  • Work is always attached to Master. one to one relation.
  • Master to work is One to Many.

Agent --> Once the Job needs to be executed , this agent will go from the Designer to Scheduler by the agent , and agent will ask details of the job from the Repo ( get the META DATA ) and then give to the Operator.

STUDIO PANEL

  1. Designer
  2. Operator
  3. Security
  4. Topology

STUDIO

TOPOLOGY

Physical Architecture

  1. How the Work Repository gets created at first ?
  2. JDBC connection is made to connect the Master and Work Repo.
  3. 40+ Technologies are used to get the Meta Data / Schema Eg. Oracle DB , File , etc
  4. If I have Oracle DB , then in TOPOLOGY add the the DB - here always referred to DATASERVER.
  5. For Eg., SOURCE & TARGET SCOTT --> This is the Table --> which as DATA --> connect in the DATARERVER in TOPOGOLY ( Physical Architecture )
  6. Data Server always as replacement for Target or Source.
  7. Once loaded , create a PHYSICAL SCHEMA.
  8. In Physical Schema , what is the difference between Schema and Work Schema ? Is it like Individual Schema you are trying to connect is referred as SCHEMA ? where this is WORK SCHEMA stored ?
  9. Data Server is nothing but YOU ARE SAYING , you have been connected to one ORACLE DB.
  10. WORK TABLE PREFIX --> this will help to identify where it failed and we can check the error in DB by using the PREFIX.
  11. Why $ is specified in those ?
  12. New Physical Schema is created under the DATASERVER.

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CONTEXT

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Logical Architecture

  1. Click ORACLE , it will show only to create LOGICAL SCHEMA.
  2. MAP the Logical Schema with the Physical Schema which is created against the GLOBAL CONTEXT. This Physical Schema name is " Complete Name " give to the PHYSICAL, not the schema and work schema.
  3. Below SS will show the connection of Physical & Logical Relation.

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Therefor , hereafter LOGICAL schema will be referred in the DESIGNER tab. NO NEED TO TOUCH PHYSICAL SCHEMA.

Questions

  1. whether all PROD , DEV & UAT will have only one Master Repo?
  2. W1 To M1 But W1 To M2 is not possible.

Important Commands

  1. select * from v$instance; --> This will give the DB version.

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