mysql - Return column names where they meet a specific value in sql -

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i've user table has "access role" defined in table itself.

schema: 

userid, username, access_1, access_2, access_3, .... access_10

here values access_columns 1 or 0

objective: need users , allowed accesses in 1 column 'access_allowed'.

userid, access_allowed   1,     (access_1, access_3, access_4, ...)   2,     (access_2, access_3, access_5, access_10, ...)

regards,
yugal

thanks strawberry... i've used concat_ws here...    select userid, username,   concat_ws(', ',   if(access1 = 1 ,'access1', null),   if(access2 = 1 ,'access2', null),   if(access3 = 1 ,'access3', null),   if(access4 = 1 ,'access4', null),   .   .   if( accessn = 1 ,'accessn',null) access_allowed   usertable

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