Exercise : Good Grades

List all grades where a student was given a B- or better. Expected results:

+-------+
| grade |
+-------+
| B-    |
| B+    |
| A+    |
| A+    |
| B     |
+-------+
5 rows in set (0.00 sec)

Exercise Solution

SELECT grade 
FROM grades 
WHERE grade <= 'B-';