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Johann_32's avatar
Johann_32
Icon for Advocate II rankAdvocate II
4 years ago
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Incremental Refresh - Reducing "Load" on Datasource

Hello, I wanted to understand the concept of incremental refresh and already did a test implementation and uploaded a dataset that has it configured, in our Power BI service.   The benefit of incr...
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  • lbendlin's avatar
    lbendlin
    4 years ago

    What really happens is that Power BI Service stores the results of the query against your data source in separate partitions. Based on how you specify your parameters it will then only run subqueries for the partitions that need to be updated, and will not run any queries for older partitions.

     

    This will reduce the load on your source system, but only if you have an index on the field that you use for RangeStart/RangeEnd.

lbendlin's avatar
lbendlin
Icon for Super User rankSuper User
4 years ago

What really happens is that Power BI Service stores the results of the query against your data source in separate partitions. Based on how you specify your parameters it will then only run subqueries for the partitions that need to be updated, and will not run any queries for older partitions.

 

This will reduce the load on your source system, but only if you have an index on the field that you use for RangeStart/RangeEnd.