Please help to generate the table from column to rows

Hello -
I have one table with more than 100 columns there are 70 column start with HC1.....HC70 (they are not in sequence) and has some value 0 or 1
Table structure:
HICN_ID HC1 HC2 HC4 HC5 HC6.................................HC70
1234A 0 1 1 0 1 1
3456D 1 0 0 1 0 0
Now What i want is like this..
HICN_ID HC
1234A 2
1234A 4
1234A 6
3456D 1
3456D 5
Can you please help me on this
thanks
nick

Please look at the same scenario from the below link.
You can accomplish this by a "pivot" query. Please look at the small testcase that I prepared below:
SQL> desc t1
Name Null? Type
NAME VARCHAR2(10)
YEAR NUMBER(4)
VALUE NUMBER(4)
SQL>
SQL> select * from t1;
NAME YEAR VALUE
john 1991 1000
john 1992 2000
john 1993 3000
jack 1991 1500
jack 1992 1200
jack 1993 1340
mary 1991 1250
mary 1992 2323
mary 1993 8700
9 rows selected.
SQL> -- now, try out the pivot query
SQL> select year,
2 max( decode( name, 'john', value, null ) ) "JOHN",
3 max( decode( name, 'jack', value, null ) ) "JACK",
4 max( decode( name, 'mary', value, null ) ) "MARY"
5 from
6 (
7 select name, year, value
8 from t1
9 )
10 group by year ;
YEAR JOHN JACK MARY
1991 1000 1500 1250
1992 2000 1200 2323
1993 3000 1340 8700
SQL>
Hope that helps.
Source : http://p2p.wrox.com/oracle/11931-sql-query-convert-columns-into-rows.html
Thanks,
Balaji K.

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I need some help in generating the ranks from 1 to 6 for each order_id
based on the item_cnt
Order_Id 100 with the Item_cnt 217,112,89,76,55,39 to be ranked from 1 to 6
Order_Id 200 with the Item_cnt 29,25,22,19,13,13 to be ranked from 1 to 6
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ORDER_ID ORDER_IN_DATE ORDER_OUT_DATE ITEM_CNT
100 9/11/2012 9/12/2012 217
100 9/13/2012 9/15/2012 112
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100 10/5/2012 10/8/2012 1
200 9/11/2012 9/12/2012 1
QUERY OUTPUT NEEDED IS
ORDER_ID ORDER_IN_DATE ORDER_OUT_DATE ITEM_CNT RNK
100 9/11/2012 9/12/2012 217 1
100 9/13/2012 9/15/2012 112 2
100 9/14/2012 9/17/2012 89 3
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100 9/12/2012 9/15/2012 55 5
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200 9/22/2012 9/29/2012 13 6
300 9/12/2012 9/18/2012 7 2
300 9/12/2012 9/17/2012 6 3
300 10/6/2012 10/10/2012 6 4
300 4/25/2013 4/27/2013 6 5
300 10/6/2012 10/9/2012 4 6
Below is the script
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DATE,ORDER_OUT_DATE DATE, ITEM_CNT NUMBER)
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(100,TO_DATE('9/11/2012','MM/DD/YYYY'),TO_DATE('9/12/2012','MM/DD/YYYY'),217);
INSERT INTO ord_test VALUES
(100,TO_DATE('9/13/2012','MM/DD/YYYY'),TO_DATE('9/15/2012','MM/DD/YYYY'),112);
INSERT INTO ord_test VALUES
(100,TO_DATE('9/14/2012','MM/DD/YYYY'),TO_DATE('9/17/2012','MM/DD/YYYY'),89);
INSERT INTO ord_test VALUES
(100,TO_DATE('9/13/2012','MM/DD/YYYY'),TO_DATE('9/16/2012','MM/DD/YYYY'),76);
INSERT INTO ord_test VALUES
(100,TO_DATE('9/12/2012','MM/DD/YYYY'),TO_DATE('9/15/2012','MM/DD/YYYY'),55);
INSERT INTO ord_test VALUES
(100,TO_DATE('11/9/2012','MM/DD/YYYY'),TO_DATE('11/18/2012','MM/DD/YYYY'),39);
INSERT INTO ord_test VALUES
(100,TO_DATE('9/14/2012','MM/DD/YYYY'),TO_DATE('9/18/2012','MM/DD/YYYY'),37);
INSERT INTO ord_test VALUES
(100,TO_DATE('9/20/2012','MM/DD/YYYY'),TO_DATE('9/22/2012','MM/DD/YYYY'),32);
INSERT INTO ord_test VALUES
(200,TO_DATE('11/9/2012','MM/DD/YYYY'),TO_DATE('11/18/2012','MM/DD/YYYY'),29);
INSERT INTO ord_test VALUES
(200,TO_DATE('9/13/2012','MM/DD/YYYY'),TO_DATE('9/15/2012','MM/DD/YYYY'),25);
INSERT INTO ord_test VALUES
(200,TO_DATE('9/12/2012','MM/DD/YYYY'),TO_DATE('9/15/2012','MM/DD/YYYY'),22);
INSERT INTO ord_test VALUES
(100,TO_DATE('9/12/2012','MM/DD/YYYY'),TO_DATE('9/14/2012','MM/DD/YYYY'),22);
INSERT INTO ord_test VALUES
(100,TO_DATE('9/13/2012','MM/DD/YYYY'),TO_DATE('9/17/2012','MM/DD/YYYY'),20);
INSERT INTO ord_test VALUES
(200,TO_DATE('9/14/2012','MM/DD/YYYY'),TO_DATE('9/17/2012','MM/DD/YYYY'),19);
INSERT INTO ord_test VALUES
(100,TO_DATE('9/14/2012','MM/DD/YYYY'),TO_DATE('9/16/2012','MM/DD/YYYY'),19);
INSERT INTO ord_test VALUES
(100,TO_DATE('9/13/2012','MM/DD/YYYY'),TO_DATE('9/18/2012','MM/DD/YYYY'),18);
INSERT INTO ord_test VALUES
(100,TO_DATE('9/12/2012','MM/DD/YYYY'),TO_DATE('9/19/2012','MM/DD/YYYY'),15);
INSERT INTO ord_test VALUES
(300,TO_DATE('9/11/2012','MM/DD/YYYY'),TO_DATE('9/12/2012','MM/DD/YYYY'),15);
INSERT INTO ord_test VALUES
(200,TO_DATE('9/12/2012','MM/DD/YYYY'),TO_DATE('9/16/2012','MM/DD/YYYY'),13);
INSERT INTO ord_test VALUES
(200,TO_DATE('9/22/2012','MM/DD/YYYY'),TO_DATE('9/29/2012','MM/DD/YYYY'),13);
INSERT INTO ord_test VALUES
(200,TO_DATE('9/13/2012','MM/DD/YYYY'),TO_DATE('9/17/2012','MM/DD/YYYY'),12);
INSERT INTO ord_test VALUES
(200,TO_DATE('10/5/2012','MM/DD/YYYY'),TO_DATE('10/8/2012','MM/DD/YYYY'),9);
INSERT INTO ord_test VALUES
(300,TO_DATE('9/12/2012','MM/DD/YYYY'),TO_DATE('9/18/2012','MM/DD/YYYY'),7);
INSERT INTO ord_test VALUES
(300,TO_DATE('9/12/2012','MM/DD/YYYY'),TO_DATE('9/17/2012','MM/DD/YYYY'),6);
INSERT INTO ord_test VALUES
(300,TO_DATE('10/6/2012','MM/DD/YYYY'),TO_DATE('10/10/2012','MM/DD/YYYY'),6);
INSERT INTO ord_test VALUES
(300,TO_DATE('4/25/2013','MM/DD/YYYY'),TO_DATE('4/27/2013','MM/DD/YYYY'),6);
INSERT INTO ord_test VALUES
(300,TO_DATE('10/6/2012','MM/DD/YYYY'),TO_DATE('10/9/2012','MM/DD/YYYY'),4);
INSERT INTO ord_test VALUES
(300,TO_DATE('9/16/2012','MM/DD/YYYY'),TO_DATE('9/23/2012','MM/DD/YYYY'),2);
INSERT INTO ord_test VALUES
(100,TO_DATE('10/5/2012','MM/DD/YYYY'),TO_DATE('10/8/2012','MM/DD/YYYY'),1);
INSERT INTO ord_test VALUES
(200,TO_DATE('9/11/2012','MM/DD/YYYY'),TO_DATE('9/12/2012','MM/DD/YYYY'),1);
select * from ord_test order by item_cnt desc;
Thank you

Hi,
That's called a Top-N Query , and here's one way to do it:
WITH    got_rnk            AS
     SELECT    o.*
     ,       ROW_NUMBER () OVER ( PARTITION BY order_id
                             ORDER BY          item_cnt     DESC
                    ) AS rnk
     FROM      ord_test o
SELECT       *
FROM       got_rnk
WHERE       rnk     <= 6
ORDER BY order_id
,            rnk
;Analytic functions (such as ROW_NUMBER) are computed after the WHERE clause is applied. If you want tio use the results of an analytic function in a WHERE clause, then you can compute the analytic function in a sub-query (such as got_rnk above), and then use that value in the WHERE clause of a super-query.

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Lars Breddemann wrote
when considering which data store to choose (which, by the way, can be changed later on as well), you have to take into account:
* will you usually need the complete row (all columns)? If so, row store may be more efficient, as reconstructing the complete row is one of the most expensive column store operations.
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Creating views is not an option as it seems from the SQL guide , that there was not an option to create a ROW view from a COLUMN table. ?
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Dear Rajashri,
1. you cann't alter table from column to row using alter command.
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Column table purpose quite different like calculations, grouping.. most of DW environment Queires.
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so finally you write small program convert column to row and row to column
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Please help to generate the table from column to rows

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