NOT SELECT command error

Question

Hi all,
Kindly find out error in the follwing query
thank you
SELECT DISTINCT v1.terminalid AS terminalid, v1.jobrefno AS jobno,
v1.jobdate AS jobdate, v1.sec AS section, v1.vessel AS vessel,
TO_CHAR (v1.etd, 'DD/MM/YYYY') AS etd,
TO_CHAR (v1.eta, 'DD/MM/YYYY') AS ETA , v1.consignee AS consignee,
v1.billto AS billto, v1.containernumber AS containerno,
v2.sales AS containersales, v3.sales AS jobsales,
TO_CHAR (v1.dateofclereance,
'DD/MM/YYYY') AS customsclearance,
v1.deliverydate AS dlydate
FROM view_uijobs_bd v1, container_sales_bd v2, job_sales_bd v3
WHERE v1.jobrefno = v2.jobrefno
+v1.CONTAINERNUMBER=v2.CONTAINERNO
AND v1.jobrefno = v3.jobrefno
AND TO_CHAR (v1.eta, 'dd-mon-yyyy') BETWEEN TO_DATE
('01-dec-2010',
'dd-mon-yyyy'
AND TO_DATE
('10-dec-2010',
'dd-mon-yyyy'
ORDER BY V1.ETA DESC
errorno:
ORA-01791 :NOT A SELECT EXPRESSION
regards
P Prakash

Answer 1

If you are using DISTINCT you must order by one of the columns in the select list, you can't just order on a column from a table.
So your order by should be...
ORDER BY ETAso that it uses the resultant column, rather than the source.
Also, your code is wrong...
AND TO_CHAR (v1.eta, 'dd-mon-yyyy') BETWEEN TO_DATE
('01-dec-2010',
'dd-mon-yyyy'
AND TO_DATE
('10-dec-2010',
'dd-mon-yyyy'
)Should be...
             AND TRUNC(v1.eta, 'dd') BETWEEN TO_DATE
                                                                ('01-dec-2010',
                                                                 'dd-mon-yyyy'
                                                     AND TO_DATE
                                                                ('10-dec-2010',
                                                                 'dd-mon-yyyy'
                                                                )