Hi All,
I am having a bit of difficulty in figuring out the query to build a list of active campaigns over a date range.
i.e. I have a table with campaign IDs and their start and end date details like this
Campaign_id Start_date End_date
10001 1-Jun-09 31-May-11
10002 1-Jun-09 23-Jun-11
30041 21-Aug-09 31-Dec-09
20005 3-Jun-10 31-May-11
90021 21-Nov-09 30-Nov-10
54000 1-Jun-11 1-Dec-12
35600 1-Mar-10 31-Mar-12
What the above data means is, for eg. the campaign 10001 is active from 1-Jun-09 to 31-May-11 i.e. for 24 months (inclusive of the month Jun-09 and May-11)
What I need to figure out is the counts of active campaigns between a date range and display that active count at a month level (for e.g. lets say we want to see all the campaigns that were active
between the date range '01-JUN-2007' and '30-APR-2012' ). So the partial output would be as seen below. The list would continue till december-2012
Month Year Count of active campaigns
Jan 2009 0
Feb 2009 0
Mar 2009 0
Apr 2009 0
May 2009 0
Jun 2009 2
Jul 2009 2
Aug 2009 3
Sep 2009 3
Oct 2009 3
Nov 2009 4
Dec 2009 4
Jan 2010 3
Feb 2010 3
Mar 2010 4
Apr 2010 4
...
...
..
Dec 2012 1
Could anybody please help me with the right query for this.
Thanks a lot for help
Regards
Goldi