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beiker10's avatar
beiker10
Frequent Visitor
7 years ago
Solved

Import DATA with index or without index

I'm loading data in a .pbix from Oracle to work in an import mode with a Pro Licence.

 

Are there any differences between load the physical tables with index or the tables without index?

  • Hi beiker10 ,

     

    That will be fine if your filter the foreign keys out before you load the data. Also you can insert index column in power query to get a new one.

3 Replies

  • v-frfei-msft's avatar
    v-frfei-msft
    Community Support

    Hi beiker10 ,

     

    If you use the index column to create relationship between tables or you add some calculated columns or measures based on the inedex column . Then you will get errors and you'd better import the whole table tegether with the index column as well. If not, then it should be ok.

     

     

    • beiker10's avatar
      beiker10
      Frequent Visitor

      I always load the whole table, but the question is:

      if i have foreign keys in the tables and some index is faster the load? I understand that I load the whole table with a select * from table, the foreign keys and the index don't have impacts into the performance.

       

       

      • v-frfei-msft's avatar
        v-frfei-msft
        Community Support

        Hi beiker10 ,

         

        That will be fine if your filter the foreign keys out before you load the data. Also you can insert index column in power query to get a new one.