php - Count how many times a string appears in a mysql table -

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i have big database stores data form. answers of form yes or no, in database there 62 names of questions stored answers (yes or no) , uid. need count how many times yes , no appears , store in variable. how can this? example of stored data this: tl1a->yes , tl2a->no , ..., uid->1234

just example ...

select      *,         round (            (             length(`yourfield`)             - length( replace ( `yourfield`, "yes", "") )          ) / length("yes")             ) count     `yourtable`

in same manner "no"

hope work...


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