SELECT DISTINCT mail FROM biz_u,buzzpek_u,chcur_u,clubkr_u,cocain_u,comixxy_u,drug_u,investor_u,mha_u,power_u,redkr_u,xernt_u
nie dziala; tj
SQL 1052 :: Column 'mail' in field list is ambiguous
SELECT DISTINCT biz_u.mail,buzzpek_u.mail .... FROM biz_u,buzzpek_u,chcur_u,clubkr_u,cocain_u,comixxy_u,drug_u,investor_u,mha_u,powe r_u,redkr_u,xernt_u
SELECT DISTINCT mail FROM ( SELECT mail FROM biz_u UNION SELECT mail FROM buzzpek_u UNION SELECT mail FROM chcur_u UNION SELECT mail FROM clubkr_u UNION SELECT mail FROM cocain_u UNION SELECT mail FROM comixxy_u UNION SELECT mail FROM drug_u UNION SELECT mail FROM investor_u UNION SELECT mail FROM mha_u UNION SELECT mail FROM power_u UNION SELECT mail FROM redkr_u UNION SELECT mail FROM xernt_u )