SELECT *
          , FN_BA_USER_INFO_R01(ins_id,'USER_NM') AS ins_nm
FROM BD_BBS_QNA
WHERE channel_comp_seq = :channel_comp_seq
 AND CONCAT(bbs_title,bbs_desc) like CONCAT('%',:search_key,'%') 
 :_filterQuery
ORDER BY bd_bbs_qna_seq DESC