我们可以使用不带循环的sql吗？

我们是否可以通过查询获得以下输出。。？这在sql中是可能的吗

我们有一个带有行号的表，例如从1到15的序列

我们还有另一个表，它包含从和到的行号，比如

根据第二个表，我们需要连接第一个表并获得如下输出：

那么，我们可以在不使用循环的情况下从SQL获得这种类型的输出吗

谢谢，

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女孩子气

试试这样的比较：

select Id, FROM_ROW from table2, table1
where table1.kId between table2.FROM_ROW and table2.TO_ROW -1

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您需要在表2中为第15行添加一行

我删除了不兼容的数据库标记。仅使用实际使用的数据库进行标记。

MariaDB [sandbox]> SELECT * FROM T;
+----------+--------+
| from_row | to_row |
+----------+--------+
|        1 |      4 |
|        4 |      6 |
|        6 |      9 |
|        9 |     13 |
+----------+--------+
4 rows in set (0.00 sec)

MariaDB [sandbox]> SELECT * FROM USERS;
+-----+----------+--------------+--------+---------------------+
| id  | userName | photo        | status | ts                  |
+-----+----------+--------------+--------+---------------------+
|   1 | John     | john.png     |      1 | 2016-12-08 13:14:24 |
|   2 | Jane     | jane.png     |      1 | 2016-12-08 13:14:24 |
|   3 | Ali      |              |      1 | 2016-12-08 13:14:24 |
|   6 | Bruce    | bruce.png    |      1 | 2016-12-08 13:14:24 |
|   7 | Martha   |              |      1 | 2016-12-08 13:14:24 |
|   8 | Sidney   |              |      1 | 2016-12-08 13:14:24 |
|  10 | Charlie  | charlie.png  |      1 | 2016-12-08 13:14:24 |
|  12 | Elisa    |              |      1 | 2016-12-08 13:14:24 |
|  14 | Samantha | samantha.png |      1 | 2016-12-08 13:14:24 |
|  15 | Hannah   | hannah.png   |      1 | 2016-12-08 13:14:24 |
|  16 | Hannah   |              |      1 | 2016-12-08 13:14:24 |
|  17 | Kevin    | kevin1.png   |      1 | 2016-12-08 13:14:24 |
|  18 | Kevin    | kevin2.png   |      1 | 2016-12-08 13:14:24 |
|  19 | Ruth     |              |      1 | 2016-12-08 13:14:24 |
| 999 | xxx      | photo        |      1 | 2016-12-08 13:16:41 |
+-----+----------+--------------+--------+---------------------+
15 rows in set (0.00 sec)

MariaDB [sandbox]> SELECT U.ID, FROM_row as start_row
    -> FROM USERS U
    -> JOIN T ON U.ID
    -> BETWEEN T.FROM_row AND T.TO_row
    -> ;
+----+-----------+
| ID | start_row |
+----+-----------+
|  1 |         1 |
|  2 |         1 |
|  3 |         1 |
|  6 |         4 |
|  6 |         6 |
|  7 |         6 |
|  8 |         6 |
| 10 |         9 |
| 12 |         9 |
+----+-----------+
9 rows in set (0.00 sec)