mysql - Sql query returning duplicate rows -

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please find query below:

select a.reco_index_content_code,a.reco_index_content_name, a.reco_index_user_action_download_file,          case when b.refdata_profession_passion_code '%-%'                  'passion'                  else 'profession'               end passion_or_profession tbl_reco_index_contents  inner join tbl_reference_databases b on a.reco_index_content_code = b.refdata_content_code a.reco_index_user_action_installed = 1 , a.user_profile_number =  1

the query returns rows repeated. if query not self explanatory, more obliged revert further details.

any appreciated

result of query

aay_aayab_ftd00028  pga tour            /mnt/sdcard/googlecheckout/pga tour.apk profession aab_aabae_ftd00071  pd central          /mnt/sdcard/googlecheckout/parkinson's central.apk   passion aab_aabae_ftd00071  pd central          /mnt/sdcard/googlecheckout/parkinson's central.apk  passion aab_aabae_ftd00072  com.diablo.psychiatry   /mnt/sdcard/googlecheckout/psychiatry-neurology pro.apk passion aab_aabae_ftd00072  com.diablo.psychiatry   /mnt/sdcard/googlecheckout/psychiatry-neurology pro.apk passion aab_aabaa_ftd00074  glasgow                 /mnt/sdcard/googlecheckout/glasgow coma scale free.apk  passion aab_aabaa_ftd00073  4 score          /mnt/sdcard/googlecheckout/four score.apk   passion aab_aabaa_ftd00075  qx calculate             /mnt/sdcard/googlecheckout/calculate qxmd.apk   passion

based on results showed, simple distinct remove duplicates since values in columns same in both rows,

select distinct .....

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