Mysql中最高记录点数

My table

+------+-------+--------+
| NAME | MARKS | POINTS |
+------+-------+--------+
| S1   |    53 | (null) |
| S2   |    55 | (null) |
| S3   |    56 | (null) |
| S4   |    55 | (null) |
| S5   |    52 | (null) |
| S6   |    51 | (null) |
| S7   |    53 | (null) |
+------+-------+--------+
+------+-------+--------+
| NAME |