mysql - rows are multipied because of joining table? -


i querying "questions" , joining "answers". each question may have 2 or more answers. due which, number of questions returned being multiplied number of answers. prevents me implementing pagination. how can avoid this? thanks.

here query:

<cfquery name="questions">     select        questions.id questionid,        questions.question question,        questions.rank rank,        questions.isrequired isrequired,        questiontypes.id questiontypeid,        questiontypes.name questiontype,        questiontypes.template template,        questions.survey_id survey_id,        surveys.name surveyname,        surveys.questionsperpage questionsperpage,        surveys.thankyoumsg thankyoumsg,        answers.id answerid,        answers.answer answer            questions    left join answers on answers.question_id = questions.id    inner join questiontypes on questions.questiontype_id = questiontypes.id    inner join surveys on questions.survey_id = surveys.id       questions.survey_id = <cfqueryparam cfsqltype="cf_sql_integer" value="#arguments.surveyid#">   </cfquery>

you can ids , answers in comma-delimited lists using group_concat():

select        questions.id questionid,        questions.question question,        questions.rank rank,        questions.isrequired isrequired,        questiontypes.id questiontypeid,        questiontypes.name questiontype,        questiontypes.template template,        questions.survey_id survey_id,        surveys.name surveyname,        surveys.questionsperpage questionsperpage,        surveys.thankyoumsg thankyoumsg,        group_concat(answers.id) answerids,        group_concat(answers.answer) answers            questions    left join answers on answers.question_id = questions.id    inner join questiontypes on questions.questiontype_id = questiontypes.id    inner join surveys on questions.survey_id = surveys.id       questions.survey_id = <cfqueryparam cfsqltype="cf_sql_integer" value="#arguments.surveyid#">    group questions.id

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