Question : Delete query (sql)

I have two tables

'cases' which has an 'id' int field and a 'firmid' int fields.

'BlobTbl' which has a field 'caseid' which is the same as the 'id' of the 'cases' table, that is where they join.

I want to delete all records from 'BlobTbl' table where when joined to the 'cases' table 'firmid <> 2'

So the join would be for a select statement something like

Select * from Blobtbls
inner join cases on
cases.id = Blobtbls.caseid

Thanks.

Answer : Delete query (sql)

DELETE FROM BlobTbl
WHERE caseid IN (SELECT ID FROM cases where firmid <> 2)