Delete list members (archive) by date
Archives list members that opted in after a specific date using DELETE FROM ListMembers WHERE TimestampOpt > '...' WITH (ListId='...'). For permanent delete, use the permanent delete operation instead.
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.
DELETE from ListMembers
WHERE TimestampOpt > '2023-06-16'
WITH (ListId='a4d24015f8')
Using OPENQUERY in SQL Server
SELECT * FROM OPENQUERY([LS_TO_MAILCHIMP_IN_GATEWAY], 'DELETE from ListMembers
WHERE TimestampOpt > ''2023-06-16''
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) = 'DELETE from ListMembers
WHERE TimestampOpt > ''2023-06-16''
WITH (ListId=''a4d24015f8'')'
EXEC (@MyQuery) AT [LS_TO_MAILCHIMP_IN_GATEWAY]