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Rapidminer In_DataBase Nest?

shivamnarwareshivamnarware Member Posts: 3 Learner I
in Help
Is there any way to give two or more connection names in the In_Database nest as I have two different connection DB as input and I am just able to get one connection name only?

Answers

  • BalazsBaranyBalazsBarany Administrator, Moderator, Employee-RapidMiner, RapidMiner Certified Analyst, RapidMiner Certified Expert Posts: 955 Unicorn
    Hi!

    The In-Database Processing nest only connects to one database connection. It generates one SQL query to be executed in one database. 

    If you want to combine results from two different databases, you can get the results from both queries using two database nests and then join in RapidMiner.

    Sometimes database systems can create internal connections to other databases. (Example: The PostgreSQL Foreign Data Wrappers concept.) If you have such a setup, you are able to use In-DB Nest with just one connection, and the database system manages the data processing internally. 

    Regards,
    Balázs
  • shivamnarwareshivamnarware Member Posts: 3 Learner I
    Hi can we have in_database nest inside the other in_database nest ?
  • MartinLiebigMartinLiebig Administrator, Moderator, Employee-RapidMiner, RapidMiner Certified Analyst, RapidMiner Certified Expert, University Professor Posts: 3,533 RM Data Scientist
    edited March 2023
    Hi,
    this is not possible, for same same reasons Balász pointed out.
    Best,
    Martin
    - Sr. Director Data Solutions, Altair RapidMiner -
    Dortmund, Germany
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