I am new to Azure SQL Database. I have a EXTERNAL DATA SOURCE
as listed in following link.
CREATE EXTERNAL DATA SOURCE [My_data_src] WITH (TYPE = RDBMS, LOCATION = N'myserver', CREDENTIAL = [my_cred], DATABASE_NAME = N'MyDB')
GO
Before creating a new EXTERNAL DATA SOURCE, I need to find out whether this already exists. is there any query or dmv existing to find this?