Check whether EXTERNAL DATA SOURCE exist in Azure SQL

Question

I am new to Azure SQL Database. I have a EXTERNAL DATA SOURCE as listed in following link.

CREATE EXTERNAL DATA SOURCE

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?

Answer 1

The following command give you list of all existing External Data Source in database

select  *  from sys.external_data_sources;

To check particular External Data Source, exist or not use following command:

IF  EXISTS (
SELECT  name
FROM sys.external_data_sources
WHERE [name] =  'Name of Datasource'
)
BEGIN
PRINT  'Yes'
END

It will print Yes if Data Source Exist.

Refer - sys.external_data_sources (Transact-SQL)