1. Oracle GoldenGate Microservices Documentation
  2. Extract
  3. Downstream Extract for Downstream Database Mining
  4. Use Cases for Downstream Mining Configuration
  5. Case 3: Capturing from Multiple Sources with Mixed Real-time and Archive-log-only Mode
  6. Prepare the Third Source Database to Send Redo to the Mining Database
  7. Set up Extracts at Downstream Mining Database
  8. Set up Extract (ext3) to Capture Changes in Real-time Mode from Online Logs Sent by DBMS3

Set up Extract (ext3) to Capture Changes in Real-time Mode from Online Logs Sent by DBMS3

Perform the following steps on the DBMSCAP downstream mining database:

  1. Register Extract with the mining database for source database DBMS3. In the credential store, the alias name of ggadm3 is linked to a user connect string of ggadm3@dbms3.The alias name of ggadmcap is linked to a user connect string of ggadmcap@dbmscap. 
    DBLOGIN USERID ggadm3
MININGDBLOGIN USERID ggadmcap
REGISTER EXTRACT ext3 DATABASE
  2. Create Extract at the mining database:
    ADD EXTRACT ext3 INTEGRATED TRANLOG, BEGIN NOW
  3. Edit the Extract parameter file ext3.prm. In the credential store, the alias name of ggadm3 is linked to a user connect string of ggadm3@dbms3. The alias name of ggadmcap is linked to a user connect string of ggadmcap@dbmscap:
    USERIDALIAS ggadm3 
TRANLOGOPTIONS MININGUSERALIAS ggadmcap TRANLOGOPTIONS
INTEGRATEDPARAMS (downstream_real_time_mine N)
  4. Start Extract: 
    START EXTRACT ext3

Note:

You can create multiple Extracts running in real-time integrated capture mode in the downstream mining database, as long as they all are capturing data from the same source database, such as all capturing for database DBMS3 in the preceding example.