Combined date sorting with anychart (mm.yyyy)

Question

Hi there
[apex 4.2, Oracle 11g]
I have a table in which I extract the year and the month and both in combination (from a date type). This is needed to summarize for example the year in a chart.
I need the combination of month and year because people could do a query which switches through years. For expample: From 02.2012 to 03.2013.
My problem is I dont know how to tell anychart to sort the dates.
I have already tried:
to_number(to_char(testdate,'YYYY')) as Year,
to_number(to_char(testdate,'YYYY'))||to_number(to_char(testdate,'MM')) as MonthyearApex now sorts:
20121,201212,20122
I would like that apex realizes to order:
1.2012,2.2012,3.2012 .........01.2013,02.2013.03.2013
The report itself has now four date relating collums:
1) Date (Type Date)
2) Year (Type Number)
3) Month (Type Number)
4) Monthyear (Type varchar)
Hope you can help.

Answer 1

Hi Thorsten,
You might find it useful to refer to the 'Sample Database Application', which gets installed in your workspace as part of a workspace provisioning. Edit the application, and view the chart series query for the 'Sales by Category/Month' chart on pg 5, where you'll see how the representation of the DATE information has been handled, which uses the following query:
select null,
       to_char(o.order_timestamp, 'MON RRRR') label,
       sum (decode(p.category,'Accessories',oi.quantity * oi.unit_price,0)) "Accessories"
from demo_product_info p, demo_order_items oi, demo_orders o
where oi.product_id = p.product_id
and o.order_id = oi.order_id
group by to_char(o.order_timestamp, 'MON RRRR'), to_char(o.order_timestamp, 'RRRR MM')
order by to_char(o.order_timestamp, 'RRRR MM')You may want to try something similar in your query. Try it out in SQL Developer or SQL Workshop first, to verify the order of results.
BTW is it safe to assume that your other open thread has now been answered: Re: Select x-axis into chart ?
Regards,
Hilary