Find the number of students that have at least one grade "B".
CREATE TABLE ENROLLED_IN (StuID VARCHAR, Grade VARCHAR)
SELECT COUNT(DISTINCT StuID) FROM ENROLLED_IN WHERE Grade = "B"
### Context: CREATE TABLE ENROLLED_IN (StuID VARCHAR, Grade VARCHAR) ### Question: Find the number of students that have at least one grade "B". ### Answer: SELECT COUNT(DISTINCT StuID) FROM ENROLLED_IN WHERE Grade = "B"