Pivot and Unpivot in Oracle 10g

Question

Hi,
This is my table structure
CREATE TABLE TESTTABLE
REVENUE1 NUMBER,
REVENUE2 NUMBER,
REVENUE3 NUMBER,
YEAR DATE
insert into testtable(revenue1, revenue2, revenue3, year) values(100,200,300,'1-Jan-2009') ;
insert into testtable(revenue1, revenue2, revenue3, year) values(250,350,450,'1-Jan-2010') ;
insert into testtable(revenue1, revenue2, revenue3, year) values(300,400,500,'1-Jan-2011') ;
The resultant should be on oracle 10g.
The result should be like
1-Jan-2009 1-Jan-2010 1-Jan-2011
Revenue1 100 250 300
Revenue2 200 350 400
Revenue3 300 450 500
Thanks in advance

Answer 1

Hi,
Naveen wrote:
...Thanks for the reply but this will not make the year as the column header it will be shown as a row in the result set.That's exactly what I thought you wanted, based on your first message:
Naveen wrote:
The result should be like
1-Jan-2009 1-Jan-2010 1-Jan-2011
Revenue1 100 250 300
Revenue2 200 350 400
Revenue3 300 450 500It would have been clearer if you had said: "The result set should be like these 3 rows:
{code}
Label 1-Jan-2009 1-Jan-2010 1-Jan-2011
Revenue1 100 250 300
Revenue2 200 350 400
Revenue3 300 450 500
{code}
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Column names are hard-coded into the query.  To get variable data, such as '1-Jan-2009' as a column header, you must use dynamic SQL.  This is probably best done in your front-end.  SQL*Plus, for example, has substitution variables, that you can define with data from your table at run-time using the COLUMN ... NEW_VALUE command.  (SQL*Plus also has a COLUMN ... HEADING command that can do what you want, , but it doesn't simplify this particular problem.)
What front-end tool are you using?  Can you use SQL*Plus?