How to get a count of the number of rows returned?

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Posted on 17 Jul 2017 14:29:39 by timl

35,130 Super User 2025 Season 1

Is there any direct way to retrieve the number of rows that are returned from a 'get rows' action?

This is what I've tried but it results in the error beneath. Ideally, I'd like to avoid looping around the results and incrementing a variable. Thanks!

InvalidTemplate. Unable to process template language expressions in action 'Compose' inputs at line '1' and column '1590': 'The template language expression 'length(outputs('GetRows').value)' cannot be evaluated because property 'value' doesn't exist, available properties are 'statusCode, headers, body'. Please see https://aka.ms/logicexpressions for usage details.'.

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Boru Wang 4 on 09 Sep 2021 at 05:38:27

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Re: How to get a count of the number of rows returned?

I tried your method but I only got 5,000 records. My table definitely has more than that. Is this the limitation of Power Automate?
timl 35,130 Super User 2025 Season 1 on 29 Aug 2020 at 11:02:11

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Re: How to get a count of the number of rows returned?

Thanks for posting this @EdHansberry. Things have changed so I'm sure this will be a great help to others.
EdHansberry 386 on 28 Aug 2020 at 22:26:12

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Re: How to get a count of the number of rows returned?

I do not think these instructions work anymore. Here is what I did in 2020, 3 years after this was posted, where I am sure things have changed a bit in the product.
Created a Compose step after whatever got the records (SQL Power Query in my case)
in the expression builder, typed Length(
clicked on the body/value in the dynamic section

Closed the paren.
that is it. It counts records returning an integer. A fuller view of the flow:
Community Power Pla... on 12 Jun 2020 at 10:26:05

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Re: How to get a count of the number of rows returned?

@v-yamao-msft
By any chance can we get current item number/Row number during each iteration ..?
if yes how can we get during error handling i would like to get each line/row number where/when it throws error.
you reply would be really appreciated
entropyeater 9 on 13 Sep 2019 at 19:53:43

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Re: How to get a count of the number of rows returned?

Thanks! Flow has made getting the length of an array as simple as resetting a lightbulb! https://www.youtube.com/watch?v=1BB6wj6RyKo
980Panama 140 on 13 Nov 2018 at 22:45:25

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Re: How to get a count of the number of rows returned?

Very happy to help.
moutinhoabreu 170 on 13 Nov 2018 at 22:41:25

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Re: How to get a count of the number of rows returned?

😂
Yes you were correct.
Thank you very much.
I really must invite you one day to support us in our company. 😂
we use a lot Flow and O365 environment and i'm not a trained It guy
980Panama 140 on 13 Nov 2018 at 22:25:59

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Re: How to get a count of the number of rows returned?

The name of the ACTION is Get Rows Invoices (hover over the top of value under dynamic content and it should give you the name it is using). I suspect it is Get_rows_Invoices. Replace Get_rows with this as in "@length(body('Get_rows_Invoices')?['value'])"
moutinhoabreu 170 on 13 Nov 2018 at 21:35:02

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Re: How to get a count of the number of rows returned?

I'm getting this error:

The template validation failed: 'The action(s) 'Get_rows' referenced by 'inputs' in action 'Compose' are not defined in the template.'.
980Panama 140 on 13 Nov 2018 at 20:45:14

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Re: How to get a count of the number of rows returned?

"@length(body('Get_rows')?['value'])" in the compose input. length will give the count of rows.