MySQL Error Code : 1064解决方案 大家帮我找下原因

CREATE   TRIGGER `f1`.`ins_slot_tigger` BEFORE INSERT ON `f1`.`slot`
    FOR EACH ROW BEGIN
if not exists(select * from t_slot sl where sl.rack_no = new.rack_no and     sl.shelf_no = new.shelf_no and sl.slot_no =new.slot_no) then
insert into t_slot(EMS_CONNECTION_ID,NE_ID,RACK_ID,SHELF_ID,NAME,USER_LABEL,NATIVE_EMS_NAME,OWNER,ALARM_REPORTING_INDICATOR,HOLDER_STATE,LOCATION,VENDOR_NAME,HARD_WARE_VERSION,SERIAL_NO,RACK_NO,SHELF_NO,SLOT_NO,IS_DEL,CREATE_TIME,UPDATE_TIME) 
values( NEW.EMS_CONNECTION_ID,NEW.NE_ID,NEW.RACK_ID,
NEW.SHELF_ID,NEW.NAME,NEW.USER_LABEL,
NEW.NATIVE_EMS_NAME,NEW.OWNER,NEW.ALARM_REPORTING_INDICATOR,
NEW.HOLDER_STATE,NEW.LOCATION,NEW.VENDOR_NAME,
NEW.HARD_WARE_VERSION,NEW.SERIAL_NO,NEW.RACK_NO,
NEW.SHELF_NO,NEW.SLOT_NO,NEW.IS_DEL,
NOW(),NEW.UPDATE_TIME);
else         
update t_slot sl set    sl.EMS_CONNECTION_ID = NEW.EMS_CONNECTION_ID,
sl.NE_ID = NEW.NE_ID,
sl.RACK_ID = NEW.RACK_ID,
sl.SHELF_ID= NEW.SHELF_ID,
sl.NAME = NEW.NAME,
sl.USER_LABEL = NEW.USER_LABEL,
sl.NATIVE_EMS_NAME = NEW.NATIVE_EMS_NAME,
sl.OWNER = NEW.OWNER,
sl.ALARM_REPORTING_INDICATOR = NEW.ALARM_REPORTING_INDICATOR,
sl.HOLDER_STATE = NEW.HOLDER_STATE,
sl.LOCATION = NEW.LOCATION,
sl.VENDOR_NAME = NEW.VENDOR_NAME,
sl.HARD_WARE_VERSION = NEW.HARD_WARE_VERSION,
sl.SERIAL_NO = NEW.SERIAL_NO,
sl.RACK_NO = NEW.RACK_NO,
sl.SHELF_NO = NEW.SHELF_NO,
sl.SLOT_NO = NEW.SLOT_NO,
sl.IS_DEL = NEW.IS_DEL,
sl.UPDATE_TIME = NOW()
where sl.rack_no = new.rack_no and sl.shelf_no = new.shelf_no and sl.slot_no =new.slot_no;     
    END if;
end //