Hi @Lohit,
"While i was trying to load the data into the sql server ,the dynamic content does not throw the value of the extended columns and additonal columns"
Do you mean the value of Dynamic content for the extended column or additional column is empty?
You should be able to reference the Application Insights query output under Microsoft Flow run details, check to see if the column you mentioned (extended column or additional column ) has a value listed there.
If it has a value, then the value should be not supported for the TextInpout (I suspect here should be a field defined under SQL Server table) where it has been entered with.
If it have a blank double quotes, or nothing else, then this field should not be supported for Microsoft Flow to read its data.
Regards,
Michael