Combine two date ranges in calender display

Question

Using Apex 3.2, Oracle 10g, IE7
I have a calender that displays two date ranges: one that does a total count of assets over a one year period and the other is a breakdown of what assets are scheduled to be in use. I would like to combine them into one display (total - in use). Any suggestions or ideas on combining the date ranges?
code below * thank you Denes Kubicek *
select 'a href="f?p=&APP_ID.:27:&SESSION.::NO::'||'P27_TYPE:'||category_name||'">'||('Count Avail: '||to_char(asset))||' /a asset , SYSDATE -1 + LEVEL
FROM (SELECT (sysdate +365) - sysdate conn_level, count(a.id) asset, b.category_name FROM hd_asset_assets a, hd_asset_categories b WHERE a.category_id = :P23_SEARCH and a.category_id = b.id GROUP BY category_name)
CONNECT BY LEVEL <= conn_level
UNION ALL
SELECT ('In Use: '||b.asset_name) asset , session_date FROM TABLE (SELECT return_table_fn () AS session_table_type FROM DUAL) left join (select asset_name, category_id from hd_asset_assets) b on UPPER(title) = UPPER(b.asset_name) where b.category_id = :P23_SEARCH
Edited by: tread on Aug 4, 2009 1:29 PM
Edited by: tread on Aug 4, 2009 1:29 PM

Answer 1

Hi,
You would probably have to simplify the existing statement and then wrap it within another select statement that does a GROUP BY over the date column:
SELECT Datecolumn, AssetName, SUM(Total)-SUM(InUse) Available
FROM (
...your existing select statements ensuring that both statements return the same number/names of columns...
GROUP BY DateColumn, AssetNameAndy