MySQL 如何在STRCMP()函数中使用数字值作为参数

为了比较，我们可以在STRCMP()函数的参数中使用数字值。它们是未加引号的参数。下面的示例将演示如何使用数字参数。

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示例

mysql> Select STRCMP(10,10)As 'Equal Numbers', STRCMP(11,10)AS '2nd Smaller', STRCMP(10,11)AS '1st Smaller', STRCMP(10,NULL)As '2nd NULL',STRCMP(NULL,10)AS '1st NULL',STRCMP(NULL,NULL)AS 'Both NULL';
+---------------+-------------+-------------+----------+----------+-----------+
| Equal Numbers | 2nd Smaller | 1st Smaller | 2nd NULL | 1st NULL | Both NULL |
+---------------+-------------+-------------+----------+----------+-----------+
| 0             | 1           | -1          | NULL     | NULL     | NULL      |
+---------------+-------------+-------------+----------+----------+-----------+
1 row in set (0.00 sec)