Bulk delete contacts using IDs from SQL Server

Deletes multiple contacts by ID. IDs are read from a SQL Server SELECT statement or stored procedure. The result set must include an Id column (e.g. from a staging table such as StagingContacts) with the contact IDs to delete.

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 Contacts
SOURCE (
  'MSSQL',
  'Data Source=localhost;Initial Catalog=Test;Integrated Security=true',
  'SELECT Id FROM StagingContacts'
)

Using OPENQUERY in SQL Server

SELECT * FROM OPENQUERY([LS_TO_HUBSPOT_IN_GATEWAY], 'DELETE FROM Contacts
SOURCE (
  ''MSSQL'',
  ''Data Source=localhost;Initial Catalog=Test;Integrated Security=true'',
  ''SELECT Id FROM StagingContacts''
)')

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_HUBSPOT_IN_GATEWAY] syntax.

DECLARE @MyQuery NVARCHAR(MAX) = 'DELETE FROM Contacts
SOURCE (
  ''MSSQL'',
  ''Data Source=localhost;Initial Catalog=Test;Integrated Security=true'',
  ''SELECT Id FROM StagingContacts''
)'
EXEC (@MyQuery) AT [LS_TO_HUBSPOT_IN_GATEWAY]