I am using Oracle8i Enterprise Edition Release 8.1.7.4.0 – Production. Yes an ancient version but the license is embedded in an application that we use and this is the Oracle version that they use.
Here is an SQL query that I am using:
SELECT EntryDate, COUNT(OrderNo)
FROM Orders
GROUP BY EntryDate;
I get results like:
EntryDate COUNT(OrderNo)
--------- --------------
01-NOV-12 543
02-NOV-12 555
03-NOV-12 91
There are currently 472 rows with dates up to today, so the above is only a small snapshot of results.
Is it possible to group the results by month instead of the current date i.e. get results like:
EntryDate COUNT(OrderNo)
--------- --------------
Nov12 X
Dec12 X
Jan14 X
Best Answer
Round to the beginning of the month:
In oracle 8i the results are sorted because of the internal algorithm used by the database to do the 'GROUP BY'. In higher Oracle version beginning with 10g a different algorithm is used and the results will not be sorted. So if you want a sorted result you should tell it the database by querying
even if the result will be sorted by accident.
To get exactly the output of your query execute the following statement: