SELECT COUNT(DISTINCT `wr_parent`) AS `cnt` FROM g4_write_ad_board WHERE ((INSTR(LOWER(wr_subject7C7Cwr_content), LOWER('B4D9BDC3'))>0) and (INSTR(LOWER(wr_subject7C7Cwr_content), LOWER('BFACB0E1'))>0) )
Unknown column 'wr_subject7C7Cwr_content' in 'where clause' : 1054