SELECT count(*) FROM Lessons AS T1 JOIN Staff AS T2 ON T1.staff_id = T2.staff_id WHERE T2.first_name LIKE "%a%"
How many lessons taught by staff whose first name has letter 'a' in it?
SELECT count ( * ) FROM Lessons AS T1 JOIN Staff AS T2 ON T1.staff_id = T2.staff_id WHERE T2.first_name LIKE `` % a % ''
select count ( * ) from lessons as t1 join staff as t2 on t1 . staff_id = t2 . staff_id where t2 . first_name like value
How many lessons taught by staff whose first name has letter 'a ' in it ?