如何加载？或者它是嵌套查询？

Question

我已经使用Laravel一段时间了，而且Laravels渴望加载非常好。但是现在我想在另一个更小的项目中做这件事，我不使用Laravel和“普通”查询。

Currenlty我正在进行两（2）次查询 <button>和SELECT * FROM questions WHERE id = :id;

所以我希望我的输出：

SELECT * FROM choices WHERE question_id = :id;

对此（我的预期结果）：

{
  "question": {
    "id": "12",
    "content": "Question content",
    "image_url": "156ebc3206212c_qijpmnklohgfe.jpeg",
    "lastmodified": "2016-03-18 09:58:08",
  },
  "answers": [
    {
      "id": "45",
      "content": "Ja",
      "question_id": "12"
    },
    {
      "id": "46",
      "content": "nej",
      "question_id": "12"
    }
  ]
}

答案栏现在嵌套在{ "question": { "id": "12", "content": "Question content", "image_url": "156ebc3206212c_qijpmnklohgfe.jpeg", "lastmodified": "2016-03-18 09:58:08", "answers": [ { "id": "45", "content": "Ja", "question_id": "12" }, { "id": "46", "content": "nej", "question_id": "12" } ] }} 内。 questions表和answer表之间的关系是question列和question_id列。

问题表

id

答案表

+----+------------------+-----------------------------------+---------------------+
| id |     content      |             image_url             |    lastmodified     |
+----+------------------+-----------------------------------+---------------------+
| 12 | Question content | 156ebc3206212c_qijpmnklohgfe.jpeg | 2016-03-18 09:58:08 |
+----+------------------+-----------------------------------+---------------------+

如何将答案表嵌入问题中？

Laravel称之为急切加载，我不知道它是否是一个连接查询。这是SQLfiddle