mysql - sql find and remove duplicate columns with trim -


i have table "partner_entries" 3 columns : our_ref | partner_ref | partner_tag thoses 3 fields form primary key.

i have amount of "duplicate" rows : 

42 | abc | tag1   42 | abc  | tag1

as can see it's not duplicate because there space after same word. can retrieve duplicates based on our_ref , partner_tag :

select   count(*) nb_duplicates, our_ref, partner_tag     partners_entries group our_ref, partner_tag having   count(*) > 1

but take rows partner_ref different, want select thoses partner_ref same space after, how can ?

thanks help

use trim in select , group clauses:

select   count(*) nb_duplicates, our_ref, trim(both '\n' partner_ref), partner_tag     partners_entries group our_ref, trim(both '\n' partner_ref), partner_tag having   count(*) > 1

use extended trim syntax remove newlines , other symbols data

sql fiddle


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