mysql - generate a query that show the times that questions get wrong -


i have table named countwronganswer columns cwa_id, question_num. how can generate table query shows 2 columns, 1 column lists question_num , second column lists number of times cwa_id related question_num.

question number |total # of mistake |  1                12 2                22 ..etc

attention: question asked without awareness of existence of count or groupby method because of knowledge level @ state. count() or groupby() key generate 2nd column of total # values did not aware of completely, therefore, attempt, @ point of time, write code data close meaningless. vote if possible if think useful or resolved issue.

probably this

select question_num, count(cwa_id) total_mistakes   countwronganswer  group question_num

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