if try search any string

ociexecute() [<a href='function.ociexecute'>function.ociexecute</a>]: ORA-00918: column ambiguously defined[/var/www/zabbix/php/include/db.inc.php:452]
SQL error [ORA-00918: column ambiguously defined] in [SELECT * FROM (SELECT h.hostid, h.host,h.host FROM hosts h WHERE ((h.hostid BETWEEN 000000000000000 AND 099999999999999)) AND h.status=3 AND ((h.hostid BETWEEN 000000000000000 AND 099999999999999)) AND ( UPPER(h.host) LIKE '%PROXY%' ESCAPE '!' ) ORDER BY h.host ASC) WHERE rownum BETWEEN 0 AND 50]
ocifetchinto() [<a href='function.ocifetchinto'>function.ocifetchinto</a>]: ORA-24374: define not done before fetch or execute and fetch[/var/www/zabbix/php/include/db.inc.php:600]