MySQL在比较字符时无法执行区分大小写的比较。可以通过以下来自表格'Employee'的示例来说明：
mysql> Select * from Employee;
+----+--------+--------+
| ID | Name | Salary |
+----+--------+--------+
| 1 | Gaurav | 50000 |
| 2 | Rahul | 20000 |
| 3 | Advik | 25000 |
| 4 | Aarav | 65000 |
| 5 | Ram | 20000 |
| 6 | Mohan | 30000 |
| 7 | Aryan | NULL |
| 8 | Vinay | NULL |
+----+--------+--------+
8 rows in set (0.09 sec)以下查询的结果集显示MySQL在比较字符时不区分大小写。
mysql> Select * from Employee WHERE Name IN ('gaurav','RAM');
+----+--------+--------+
| ID | Name | Salary |
+----+--------+--------+
| 1 | Gaurav | 50000 |
| 5 | Ram | 20000 |
+----+--------+--------+
2 rows in set (0.00 sec)
