I am trying to perform Copy Activity inside Azure Data Factory where the source is Blob and destination is MySql database.
I do not want certain data to be copied during that activity and that can be determined by reading First key value Element of the Blob JSON.
Or maybe if it is not possible to stop reading all the BLOB data then atleast while writing inside the SQL table I want just some specific data.
I saw that there is Pre-copy Script in the copy activity. Can someone give an idea how to use it or what kind of script I can write there?
