Read members across all lists

Gets members from all lists by querying ListMembers without ListId. The query scans all lists and fetches members for each; this may return a large result set.

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.

SELECT * FROM ListMembers --scan all lists and then fetch members for each list

Using OPENQUERY in SQL Server

SELECT * FROM OPENQUERY([LS_TO_MAILCHIMP_IN_GATEWAY], 'SELECT * FROM ListMembers --scan all lists and then fetch members for each list')

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) = 'SELECT * FROM ListMembers --scan all lists and then fetch members for each list'
EXEC (@MyQuery) AT [LS_TO_MAILCHIMP_IN_GATEWAY]