SELECT count(*) FROM purchase AS T1 JOIN member AS T2 ON T1.member_id  =  T2.member_id WHERE T2.level  =  6
What is the total number of purchases for members with level 6?
SELECT count ( * ) FROM purchase AS T1 JOIN member AS T2 ON T1.member_id = T2.member_id WHERE T2.level = 6
select count ( * ) from purchase as t1 join member as t2 on t1 . member_id = t2 . member_id where t2 . level = value
What is the total number of purchases for members with level 6 ?