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我面对一个SQL SELECT问题:SQL SELECT语句的问题
有一个问题,这个问题有一个anwser,而这个答案有一个问题,等等... 这是我的查询:
SELECT Q.question, A.answer, A.nextQuestion as 'next question' from answers A join questions Q on A.nextQuestion = V.questionId
order by Q.question;
这是上面查询的输出:
Question 1 | Answer 1 | 2
Question 1 | Answer 2 | 2
Question 2 | Answer 1 | 1
Question 2 | Answer 2 | 1
所以现在的“下一个问题”是一个数字......但我想解决n个下一个问题文本(Q.question)... 我该怎么做到这一点?
我想是这样的:
Question 1 | Answer 1 | Question 2
Question 1 | Answer 2 | Question 2
Question 2 | Answer 1 | Question 1
Question 2 | Answer 2 | Question 1
在此先感谢!
我正在使用MySQL。
这是我的表结构:
表 “问题”
+------------------+
| Field |
+------------------+
| questionId |
| question |
+------------------+
表 “答案”
+------------------+
| Field |
+------------------+
| answerId |
| answer |
| nextQuestion |
+------------------+
谢谢!这帮助我了! – Lorenzo 2013-05-12 09:49:02