@Ayyappa Koosam - Thanks for the question and using MS Q&A platform.
What is the time difference between the JSON file upload to the storage account and the querying the data from Azure Stream Analytics?
Note: The default time is set to 3 minutes if the JSON file upload to the storage account is greater than 3 minutes it's execpted that it will throw the below error message. There is no data from input 'asasample'. Please make sure the input source has data and then try again.
As soon as you upload the file, you can also see the file contents in the form as a table or in it's raw format. If you select Reset, the sample data will return to the incoming input data explained in the previous section. You can upload any other file to test the query at any time.
OR
Make sure to modify the select time range to match the time you uploaded the JSON file upload to the storage account. In case, if you had uploaded 30minutes back
OR
If your data shown isn't current, select Refresh to see the latest events.
For more details, refer to Stream data from Blob storage or Data Lake Storage Gen2 and Test an Azure Stream Analytics job in the portal.
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