How do I declare the extra variable?

Question

List the customer number, name, (first and last), order number, order date, employee number, employee, name (first and last), product number, product name, and order cost, (orderline.qty*prodprice) for products ordered on January 23, 2009
I have no column called order cost in any tables. How do I declare a new variable called order cost in the query? And to date line is missing a right parenthesis. The exact line worked with a different question but accept that I have added on the date in this line.
SELECT C.CUSTNO, C.CUSTFIRSTNAME, C.CUSTLASTNAME, O.ORNO, O.ORDDATE, E.EMPNO, E.EMPFIRSTNAME, E.EMPLASTNAME, P.PRODNO, P.PRODNAME, L.PRODNO, L.QTY, Order_cost
From Customer c, Orders o, ORDERLINE L, Employee e, Product P
where(C.CUSTNO=O.CUSTNO) and(O.EMPNO = E.EMPNO) and (O.ORDNO = L.ORDNO) and (P.PRODNO = L.PRODNO) and Order_cost= (L.QTY*ProdPrice)
and (o.OrdDate >= to_date('23/01/2009', 'dd/'mm/yyyy') and o.OrdDate <= add_months(to_date('23/01/2009','dd/'mm/yyyy'),+1)-1);
Thanks.

Answer 1

Hi,
user9164240 wrote:
List the customer number, name, (first and last), order number, order date, employee number, employee, name (first and last), product number, product name, and order cost, (orderline.qty*prodprice) for products ordered on January 23, 2009
I have no column called order cost in any tables. How do I declare a new variable called order cost in the query? And to date line is missing a right parenthesis. The exact line worked with a different question but accept that I have added on the date in this line.
SELECT C.CUSTNO, C.CUSTFIRSTNAME, C.CUSTLASTNAME, O.ORNO, O.ORDDATE, E.EMPNO, E.EMPFIRSTNAME, E.EMPLASTNAME, P.PRODNO, P.PRODNAME, L.PRODNO, L.QTY, Order_cost
From Customer c, Orders o, ORDERLINE L, Employee e, Product P
where(C.CUSTNO=O.CUSTNO) and(O.EMPNO = E.EMPNO) and (O.ORDNO = L.ORDNO) and (P.PRODNO = L.PRODNO) and Order_cost= (L.QTY*ProdPrice)
and (o.OrdDate >= to_date('23/01/2009', 'dd/'mm/yyyy') and o.OrdDate <= add_months(to_date('23/01/2009','dd/'mm/yyyy'),+1)-1);Never write, let alone post, unformatted code.
Format your code so that it's easy to see (among other things) that
(1) the arguments to TO_DATE match each other, and
(2) parentheses are balanced.
For example:
SELECT      C.CUSTNO
,      C.CUSTFIRSTNAME
,      C.CUSTLASTNAME
,      O.ORNO
,      O.ORDDATE
,      E.EMPNO
,     E.EMPFIRSTNAME
,     E.EMPLASTNAME
,     P.PRODNO
,     P.PRODNAME
,     L.PRODNO
,     L.QTY
,     L.QTY * ProdPrice     AS Order_cost
From      Customer     c
,     Orders           o
,     ORDERLINE     L
,     Employee     e
,     Product          P
where     (C.CUSTNO     = O.CUSTNO)
and     (O.EMPNO      = E.EMPNO)
and      (O.ORDNO      = L.ORDNO)
and      (P.PRODNO      = L.PRODNO)
and      (o.OrdDate      >= to_date ( '23/01/2009'
                       , 'dd/'mm/yyyy'          -- WRONG!  Look at alignment
and      o.OrdDate      <= add_months ( to_date ( '23/01/2009'
                              , 'dd/'mm/yyyy'     -- WRONG!  Look at alignment
                          , +1
                          ) -1
)                    -- Extra right parentheses
;When you post formatted text on this site, type these 6 characters
\(all small letters, inside curly brackets) before and after each section of formatted text.  If you don't, this site will not show all the extra spaces.