How to change the name of the column for dynamic query

Question

I would like to change the name of the column name to bidderone, biddertwo and bidderthree. the only problem is the vendors name unknown when I run the query and sometimes the query returns two vendors. the maximum vendor is three. here is the query and please let me know how this can be done. thank you so much. I am using oracle 10i
FOR lv_rec IN   ( SELECT vendor, calcbtot
  FROM (SELECT t.*, ROW_NUMBER () OVER (ORDER BY t.calcbtot Asc) rn
          FROM (  SELECT DISTINCT
                         s.vendor,
                         TO_CHAR (s.calcbtot, '999,999,999.00') calcbtot
                    FROM bidtabs b, bidders s
                   WHERE     b.CALL = s.CALL
                         AND b.letting = s.letting
                         AND b.vendor = s.vendor
                         AND b.letting = v_letting
                         AND b.CALL = v_call
                ORDER BY 2) t)
WHERE rn <= 3 )                 
   LOOP
      lv_sql :=
            lv_sql  || ', TO_CHAR(MAX(DECODE(TRIM(S.VENDOR),'''|| TRIM (lv_rec.vendor) || ''', S.BIDPRICE)),  ''$999,999,999.00'') AS "'|| TRIM (lv_rec.vendor) ||'" ';
   END LOOP;

Answer 1

thank you so so much for your help on this. I am sorry i did not post the entire code. my intention is to use bidderone, biddertwo,bidderthree as a column name insead of the name of the vendors and also calcuate the average of the three vendors. the maximum vendor will be three but the minumum could be one or two. hope this is enought information to help me out further . thank you
CREATE OR REPLACE PROCEDURE biddersquoteforbridge (
   p_spnumber   IN       VARCHAR2,
   p_result     OUT      sys_refcursor
IS
   v_letting   VARCHAR2 (40);
   v_call      VARCHAR2 (40);
   lv_sql      VARCHAR2 (32767) := NULL;
BEGIN
   SELECT DISTINCT L.LETTING, CALL
              INTO v_letting, v_call
              FROM LETPROP L, PROPOSAL P
             WHERE L.LCONTID = P.CONTID AND CPROJNUM= p_spnumber;
   lv_sql :=
      'SELECT   O.PRPITEM "Item Number",
                INITCAP(FUNC_GET_ITEM_DESCRIPTION(O.PRPITEM)) "Description",
                O.CONTID "Contract Id",O.SECTION "Section" , P.CPROJNUM "SP Number", P.CFACSSUP "District",
                FUNCT_GET_SECTION_IDENTIFIER(O.SECTION, O.CONTID) "Section Title",  ''Q''||(TO_CHAR(D.DATELET, ''Q-YYYY'')) "Quarter",
                O.IPLINENO "Line Number", O.QTY "Quantity" ';
  FOR lv_rec IN   ( SELECT vendor, calcbtot
  FROM (SELECT t.*, ROW_NUMBER () OVER (ORDER BY t.calcbtot Asc) rn
          FROM (  SELECT DISTINCT
                         s.vendor,
                         TO_CHAR (s.calcbtot, '999,999,999.00') calcbtot
                    FROM bidtabs b, bidders s
                   WHERE     b.CALL = s.CALL
                         AND b.letting = s.letting
                         AND b.vendor = s.vendor
                         AND b.letting = v_letting
                         AND b.CALL = v_call
                ORDER BY 2) t)
WHERE rn <= 3 )                 
   LOOP
      lv_sql :=
            lv_sql  || ', TO_CHAR(MAX(DECODE(TRIM(S.VENDOR),'''|| TRIM (lv_rec.vendor) || ''', S.BIDPRICE)),  ''$999,999,999.00'') AS "'|| TRIM (lv_rec.vendor) ||'" ';
   END LOOP;
   lv_sql :=
         lv_sql
      || '
        FROM   PROPITEM O  ,                   
               PROPOSAL P  ,
               LETPROP  L  ,
               BIDDERS  B  ,
               BIDTABS  S  ,
               BIDLET   D
         WHERE O.CONTID = P.CONTID
                AND P.CONTID = L.LCONTID
                AND L.CALL = B.CALL
                AND L.LETTING = B.LETTING
                AND B.CALL = S.CALL             
                AND B.LETTING = S.LETTING
                AND B.VENDOR = S.VENDOR 
                AND S.IPLINENO = O.IPLINENO
                AND L.LETTING = D.LETTING             
                AND O.LINEFLAG =''L''    
                AND L.LETTING = :B1
                AND L.CALL = :B2
         GROUP BY
               O.CONTID,
               O.SECTION,
               O.IPLINENO,
               O.PRPITEM,
               O.QTY,
               P.CPROJNUM,
               P.CFACSSUP,
               O.PRICE ,
               D.DATELET             
         ORDER BY O.IPLINENO ';
  -- DBMS_OUTPUT.put_line (lv_sql);
   OPEN p_result FOR lv_sql USING v_letting, v_call;
END;