sink -delta- dateformat -

Question

Hello,
At present, the dataflow1 sink has a dataset which stored parquet files in folders based on year/month/day

@markus.bohland@hotmail.de ('folderName/subFolderName', '/year=',formatDateTime(dataset().p_CurrentDate,'yyyy'),'/month=',formatDateTime(dataset().p_CurrentDate,'MM'),'/day=',formatDateTime(dataset().p_CurrentDate,'dd'), '/', dataset().p_VM)

now in dataflow1_new, instead of the sink dataset, I am using inline dataset Delta and in the settings I would like to have the same as above @markus.bohland@hotmail.de but in sink dataflow. It looks like in dataflow, I can not use formatDateTime. How can the above be replaced to be used in dataflow?

Thank you

Answer 1

Hello @arkiboys ,

Thanks for the question and using MS Q&A platform.

My understanding is that you would like to know what is the mapping data flow equivalent expression function to formatDateTime. Please correct me if I'm wrong.

In mapping data flow expression builder you can use combination of toDate() and toString() functions to format your input date to your desired date format.

For example, if you would like to convert a Date in ( YYYYMMDD) while it’s coming as "2018-10-01T00:00:00" in your source. Then sample expression would look like below:

toString(toDate('2018-10-01T00:00:00','yyyy-MM-dd'),'yyyyMMdd')  

For samples please refer to this video by @MarkKromer-MSFT - Work with date time expressions in ADF Data Flows

Hope this will help. Please let us know if any further queries.

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