我想选择n次记录，其中n是字符串在字段中出现的次数。
示例：
mytable的：
+--------+------------------------------------+
| id | content |
+--------+------------------------------------+
| 1 | This string contains two strings. |
| 2 | This is a string. |
| 3 | This does not contain our keyword. |
+--------+------------------------------------+
现在我希望这样一个假设查询的结果与以下结果类似：
/* hypothetical: this won't yield the desired result obviously */
SELECT * FROM mytable WHERE content LIKE "%string%";
+--------+------------------------------------+
| id | content |
+--------+------------------------------------+
| 1 | This string contains two strings. |
| 1 | This string contains two strings. |
| 2 | This is a string. |
+--------+------------------------------------+
这甚至可能吗？
由于