如何在MySQL中使用数组变量？
MySQL不支持数组变量。要获得相同的结果，请使用表DUAL。以下是语法：
SELECT yourValue1 AS ArrayValue FROM DUAL UNION ALL SELECT yourValue2 FROM DUAL UNION ALL SELECT yourValue3 FROM DUAL UNION ALL SELECT yourValue4 FROM DUAL UNION ALL . . . . . . SELECT yourValueN FROM DUAL;
让我们创建一个示例表：
mysql> SELECT 1 AS ArrayValue FROM DUAL
UNION ALL
SELECT 2 FROM DUAL
UNION ALL
SELECT 3 FROM DUAL
UNION ALL
SELECT 4 FROM DUAL
UNION ALL
SELECT 5 FROM DUAL
UNION ALL
SELECT 6 FROM DUAL
UNION ALL
SELECT 7 FROM DUAL
UNION ALL
SELECT 8 FROM DUAL
UNION ALL
SELECT 9 FROM DUAL
UNION ALL
SELECT 10 FROM DUAL ;这将产生以下输出
+------------+ | ArrayValue | +------------+ | 1 | | 2 | | 3 | | 4 | | 5 | | 6 | | 7 | | 8 | | 9 | | 10 | +------------+ 10 rows in set (0.00 sec)
热门推荐
10 圣诞祝福语简短小学
11 祖国七十华诞简短祝福语
12 老师送的祝福语简短
13 生日祝福语大全女生简短
14 祝女性生日祝福语简短
15 牛年女神节祝福语简短
16 情人表白祝福语简短大气
17 老公开业祝福语简短
18 官宣新年祝福语简短