Question : CFChart and graphing a month

I am trying to graph data for a month.

The problem is that there may be no data for a particular day.

For example, I have the following data

MyCount  TheDay    TheYear  
----------- ----------- -----------
9           2           2003
12          3           2003
8           5           2003
13          6           2003
6           7           2003
8           8           2003
14          9           2003
13          10          2003
5           11          2003
11          12          2003
7           13          2003
3           14          2003
6           15          2003
14          16          2003
18          17          2003
10          18          2003
13          19          2003
13          20          2003
13          21          2003
12          22          2003
19          23          2003
23          24          2003
15          25          2003
19          26          2003
9           27          2003
10          28          2003
11          29          2003
12          30          2003
2           1           2004
5           2           2004
12          3           2004
25          4           2004
20          6           2004

Notice that there is no data for the 4th of 2003 nor the 1st of 2003 nor the 5th for 2004 (although the missing data doesn't seem to matter as long as there is data for teh corresponding day in the earliest month graphed).

Now when I chart this data I get the days across the X axis like this :

2 3 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 1 4

Notice that the 1st and the 4th get put at the end because they did not exists in the first month that was graphed.

I need either :

1) a SQL way to ensure that I pull data for every date in the earliest year (or every year) so that the data looks like


MyCount  TheDay    TheYear  
----------- ----------- -----------
0           1           2003
9           2           2003
12          3           2003
0           4           2003
8           5           2003
13          6           2003
6           7           2003
8           8           2003
14          9           2003
13          10          2003
5           11          2003
11          12          2003
7           13          2003
3           14          2003
6           15          2003
14          16          2003
18          17          2003
10          18          2003
13          19          2003
13          20          2003
13          21          2003
12          22          2003
19          23          2003
23          24          2003
15          25          2003
19          26          2003
9           27          2003
10          28          2003
11          29          2003
12          30          2003
2           1           2004
5           2           2004
12          3           2004
25          4           2004
0            5          2004
20          6           2004

2) a way to do this in Cold Fusion.  I tried Query of Queries, but an outer join is needed and that is not yet supported in query of queries.

Here is my chart code :

      chartheight="600"
      chartwidth="950"
      yaxistitle="MyCount"
      format="jpg"
      scalefrom="0"
      scaleto="60"
      gridlines="13"
      name="output_graph">
      
            
                  
                        
                  
            
      

Answer : CFChart and graphing a month

1.  Get the data from your query, sorted by day.

2.  Get the number of days in any given month that you are interested in:  


3.  Set the year (you can do this programattically to cover mutliple years)


3.  Loop over the number of days in that month within your cfchart.  Do a query on your query for that day's values, and if one does not exist, insert your own "zero".

     chartheight="600"
     chartwidth="950"
     yaxistitle="MyCount"
     format="jpg"
     scalefrom="0"
     scaleto="60"
     gridlines="13"
     name="output_graph">
     
     
     
     SELECT MyCount FROM MyQuery WHERE TheYear = '#thisyear#' AND TheDay = '#thisday#'
     
     
         
     
         
     
         
     


I haven't tested this, there are other variables in there I've not accounted for, but that is the gist of it.

cheers,