Bulk upsert members from any ODBC data source

Subscribes or unsubscribes members from any ODBC data source (e.g. DSN) using UPSERT INTO ListMembers SOURCE('ODBC', ...). The inner SELECT column aliases must match ListMembers input columns. Pass ListId in the WITH clause.

Standard SQL query example

This is the base query accepted by the connector. To execute it in SQL Server, you have to pass it to the Data Gateway via a Linked Server. See how to accomplish this using the examples below.

UPSERT INTO ListMembers
SOURCE('ODBC', 'DSN=MyOdbcDsn'
,'select col1 as EmailAddress,col2 as FirstName, col3 as Status from sometable') --//column name alias must match with InputColumns of ListMembers
WITH(ListId='a4d24015f8')

Using OPENQUERY in SQL Server

SELECT * FROM OPENQUERY([LS_TO_MAILCHIMP_IN_GATEWAY], 'UPSERT INTO ListMembers
SOURCE(''ODBC'', ''DSN=MyOdbcDsn''
,''select col1 as EmailAddress,col2 as FirstName, col3 as Status from sometable'') --//column name alias must match with InputColumns of ListMembers
WITH(ListId=''a4d24015f8'')')

Using EXEC in SQL Server (handling larger SQL text)

The major drawback of OPENQUERY is its inability to incorporate variables within SQL statements. This often leads to the use of cumbersome dynamic SQL (with numerous ticks and escape characters).

Fortunately, starting with SQL 2005 and onwards, you can utilize the EXEC (your_sql) AT [LS_TO_MAILCHIMP_IN_GATEWAY] syntax.

DECLARE @MyQuery NVARCHAR(MAX) = 'UPSERT INTO ListMembers
SOURCE(''ODBC'', ''DSN=MyOdbcDsn''
,''select col1 as EmailAddress,col2 as FirstName, col3 as Status from sometable'') --//column name alias must match with InputColumns of ListMembers
WITH(ListId=''a4d24015f8'')'
EXEC (@MyQuery) AT [LS_TO_MAILCHIMP_IN_GATEWAY]