Looking for Query..

Question

sno name price date
1 a 200 jan 2012
2 b 300 feb 2012
3 c 400 sep 2012
4 d 260 dec 2012
Output need:
sno jan feb mar apr may jun jul aug sep oct nov dec
1 200
2 300
3 400
4 260
I tried query like this. But for every month i have to write decode. Instead of this is there any alternative way. I need to design in Oracle Reports 6i.
SELECT sno,
MAX(DECODE(date,jan, price))Jan,
MAX(DECODE(date,feb, price))feb,
MAX(DECODE(date,apr, price))mar,
MAX(DECODE(date,dec, price))dec
FROM PRODUCTS
Is ther any other way to write this sql
DB:9i
Thanks & Regards
pallis

Answer 1

Hi, Pallis,
pallis wrote:
sno name price date
1 a 200 jan 2012
2 b 300 feb 2012
3 c 400 sep 2012
4 d 260 dec 2012Always post CREATE TABLE and INSERT statements for your sample data.
See the forum FAQ {message:id=9360002}
Output need:
sno jan feb mar apr may jun jul aug sep oct nov dec
1 200
2 300
3 400
4 260That looks like the feb-dec columns are always NULL. Is that what you meant, or did you mean something like this:
sno   jan   feb   mar   apr   may   jun   jul   aug   sep   oct   nov   dec
  1   200                                 
  2         300
  3                                             400
  4                                                                     260? The same forum FAQ page explains how to use \ tags to post formatted text on this site.
I tried query like this. But for every month i have to write decode. Instead of this is there any alternative way. I need to design in Oracle Reports 6i.
SELECT sno,
MAX(DECODE(date,jan, price))Jan,
MAX(DECODE(date,feb, price))feb,
MAX(DECODE(date,apr, price))mar,
MAX(DECODE(date,dec, price))dec
FROM PRODUCTS DATE is not a good column name.
How are you defining variables such as jan that are used in the DECODE expressions?  You can use the SYSDATE and ADD_MONTHS functions to dynamically set them relative to today's date.  For the column aliases, you may need dynamic SQL.  (In SQL*Plus, this is fairly easy, using substitution variables.)  When you post the sample data, give a couple of different examples of output you would want from the exact same data.  E.g. "If I run the query today, or any time in January 2013, then I should get this output: ...  but if I run it in February 2013, then I want ..."
Is ther any other way to write this sqlYes, therres another forum FAQ page on this topic. {message:id=9360005}
Do you need 12 separate columns for the months, or would you accept one big string column, formatted to look like 12 columns?  String aggregation (which does *not* require dynamic SQL) might be an option.
DB:9iAre you saying you're database version is Oracle 9?  What is the actual version number, e.g. 9.2.0.6.0?
I don't know if Oracle Reports can pivot data.