Saturday, December 10, 2016

Informatica Power Center Practice Exercises

Below are some exercises to improve ETL skills using Informatica Power Center.
  1. Load a target table with truncate and load strategy.
  2. Load a target table by Inserting/Updating using transformations Lookup and Update strategy.
  3. Load a target table with Insert Else Update without using update strategy transformation
    • This strategy is helpful if target table is huge and number changes going to target are less
  4. Handle duplicates in Lookup transformation
    • You could leave default properties to pickup the last value in duplicates
    • Or you could change the properties to pick a value that is appropriate to your scenario
    • Or you could also choose to get all matches including duplicates from lookup
  5. Join data coming from multiple sources using Joiner transformation and load into a single target
  6. Observe performance difference of using sorted input vs no sorted input in Joiner transformation
    • Data can be sorted in source query if it is a database source
    • Data can be sorted in sorter transformation if you cannot sort in source
    • You may need to use sorter transformation if you are getting data from different source systems because they may return different output for same sort criteria (Ex: DB2 vs Oracle - Sort order for nulls/symbols is different between these two databases)

1 comment:

  1. Really nice blog post.provided a helpful information.I hope that you will post more updates like this Informatica Online Course Bangalore

    ReplyDelete