INTERVIEW QUESTIONS DATA WAREHOUSING INFORMATICA DETAILS

Question: What are the joiner caches?

Answer: When a Joiner transformation occurs in a session, the Informatica Server reads all the records from the master source and builds index and data caches based on the
master rows.
After building the caches, the Joiner transformation reads records from the detail source and perform joins.

When a Joiner transformation occurs in a session, the Informatica Server reads all the records from the master source and builds index and data caches based on the
master rows.
After building the caches, the Joiner transformation reads records from the detail source and perform joins. Source: CoolInterview.com

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