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Query API - if no results, don't create file

Carol Grant

I'm trying to figure out how to look at the returned results from a Query using the Query API and if there are no results, don't create a file.

The results of the query are in the URL passed back. I'm not sure how to split that up so I can see if there is a second row of data that isn't the headers.

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Thanks,

Carol

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Comments

Alex Wong

@Carol Grant
if you use CSV:

length(split(trim(base64ToString(body('HTTP_-_Get_query_results')?['$content'])), outputs('Compose_New_Line')))

where you have a “Compose” action (named “Compose New LIne”) that has a new line character (just type “Enter” key in the compose).

length(split(trim(base64ToString(body('HTTP_-_Get_query_results')?['$content'])), decodeUriComponent(' ')))

the length=1 means no data row

===================================

if you use JSON:

length(base64ToString(body('HTTP_-_Get_query_results')?['$content']))

length=0 means no data row

Alex Wong

Actually, it's simpler than that lol.

In the get execute job status, on the one that you got the sas_uri, there's a property (new) “row_count” that shows on JSON or CSV output option.

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Carol Grant

@Alex Wong- Thank You! That worked, there was an extra parentheses in the highlighted area below, but that worked.

length(split(trim(base64ToString(body('HTTP_-_Get_query_results')?['$content']))), outputs('Compose_New_Line')))

Alex Wong

@Carol Grant
lol on the extra paranthesis. always the hardest part of typing expression in notepad, making sure all “open” and “close” line up.

Updated the original post to remove the extra close paranthesis