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May 22, 2025
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Tag: Informatica Concepts

  • DW & ETL

Informatica ETL Interview Questions and Answers – Part 3

learndmdwbi10 years ago07 mins

Informatica Interview Questions & Answers: P. How DTM buffer size and buffer block size are related? The number of buffer blocks in a session = DTM Buffer Size / Buffer Block Size. Default settings create enough buffer blocks for 83 sources and targets. If the session contains more than 83, you might need to increase DTM…

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  • DW & ETL

Informatica ETL Interview Questions and Answers – Part 1

learndmdwbi10 years ago10 years ago54 mins

Informatica Interview Questions & Answers: A. What are the differences between Connected and Unconnected lookup? Connected lookup participates in the mapping(dataflow), just like any other transformation. Unconnected  lookup is used when a lookup function is used instead in an expression transformation in the mapping in which case the lookup does not appear in the main…

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