Question

I have oracle table which looks like this:

ID---Date------------Type
1  |  01/01/2013  | Install Date 
1  |  05/01/2013  | Complete Date 
1  |  10/01/2013  | Closed Date
2  |  02/01/2013  | Install Date
2  |  03/02/2013  | Closed Date
3  |  10/01/2013  | Install Date
3  |  13/01/2013  | Closed Date
4  |  07/01/2013  | Install Date
4  |  09/01/2013  | Complete Date
4  |  17/01/2013  | Closed Date

What I want to achieve is to query this to get result like this:

ID--InstallDate--CompleteDate--ClosedDate------
1 | 01/01/2013 | 05/01/2013 | 10/01/2013 
2 | 02/01/2013 | --null-----| 03/02/2013
3 | 10/01/2013 | --null-----| 13/01/2013
4 | 07/01/2013 | 09/01/2013 | 17/01/2013

Answer 1

This will do:

SELECT  ID,
        MAX(CASE WHEN Type = 'Install Date' THEN Date END) InstallDate,
        MAX(CASE WHEN Type = 'Complete Date' THEN Date END) CompleteDate,
        MAX(CASE WHEN Type = 'Closed Date' THEN Date END) ClosedDate
FROM OracleTable
GROUP BY ID
ORDER BY ID