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Power Apps
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LookUp speed

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Posted on by 2,129

Content migrated from TechNet. Post attribution to:Brian Dang

 

In Excel, Index(,Match()) is more efficient than a vlookup or hlookup. In practice, I don't see the difference, but that's what experts say.

 

I am wondering if there is a difference in LookUp speeds in PowerApps/Project Siena.

 

I have two ways I generally check if a returned value is equal to a target:

 

LookUp(source, ID=item1, return)=target

First(Filter(source, ID=item1))!return=target

 

Which one is more efficient? Do you have a better way?

 

Brian

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  • Verified answer
    Migrated_User Profile Picture
    2,129 on at

    Hi Brian,

    The Filter function finds records in a table that satisfy a formula.  Use Filter to find a set of records that match one or more criteria and to discard those that don't.

    The LookUp function finds the first record in a table that satisfies a formula.  Use LookUp to find a single record that matches one or more criteria.

    For both, the formula is evaluated for each record of the table.

    So I think there is little difference between the speed of the two function.

    Take a look at the article about Filter and LookUp functions in PowerApps:

    https://powerapps.microsoft.com/en-us/tutorials/function-filter-lookup/

    Best Regards,

    Lisa Chen

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