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    <p>So here is the scenario that I could understood from your question:</p> <p>The admin specify a relation between the previous questions' answers and another question, based on this conditions this question will have an automatically answer based on this relation, and this logic relation is specified manually. So for this, you will need two more tables:</p> <p><strong><code>PreviousQuestionsAnswers</code></strong>:</p> <ul> <li><code>QuestionId</code>,</li> <li><code>PreviousQuestionId</code>,</li> <li><code>PreviousAnswerID</code></li> </ul> <p><strong><code>QuestionPreAnswer</code></strong>:</p> <ul> <li><code>QuestionId</code>,</li> <li><code>AnswerId</code></li> </ul> <p>For instance:</p> <blockquote> <p>If a person answers: Question 1 = "HP", Question 2 = "Ubuntu", Question 3 = "OS X"; Question 4 is automatically set to "Puma"</p> </blockquote> <p>Then these two tables will have something like:</p> <p><code>PreviousQuestionsAnswers</code>:</p> <pre><code>QuestionId PreviousQuestionId PreviousAnswerId 4 1 1 4 2 2 4 3 3 </code></pre> <p><code>QuestionPreAnswer</code>:</p> <pre><code>QuestionId AnswerId 4 4 </code></pre> <p><strong>Note that:</strong> These data are preentered by the admin, so that, from the front end application after the OP that supposed to take that survey, you will match the answeres he entered in the previous questions that supposed to be entered in the <code>Answers</code> that you already have, with the pre defined conditions in the <code>PreviousQuestionsAnswers</code> table, if so then set the question with the choice <code>QuestionPreAnswer</code>. </p>
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    1. POA value from a combination of values - Database design
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    1. USMahmoud Gamal
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    1. COinstead of commenting, I edited my post because comments would just allow limited numbers of characters. I'd appreciate if you check the "Edit" section of my post. Thanks again!
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      1. USSandyandi N. dela Cruz
    2. CO@SandyandiN.delaCruz This better, this `combinationid` will let you make many combination for each `questionid`.
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      1. USMahmoud Gamal
    3. COThere, I checked it. Many thanks!
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      1. USSandyandi N. dela Cruz
 

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