How to make the calculation or formula in bottom of the coloum

Question

How to make the calculation or formula in bottom of the coloum in Discoverer report.
Regadrs
Manikandan

Answer 1

Hi Ros
You have a couple of issues, one that is simple to resolve and one that is not so simple.
First, the simple one - the word TOTAL. To alter the word that Discoverer inserts next to a total, or to even remove the word altogether, use this workflow:
1. Right-click on the total and from the pop-up menu select Edit Total
2. At the bottom right-hand corner of the Edit Total dialog box is the area where the label is maintained. You will see a checkbox for the label
3. If you uncheck the label you can change the label to anything you like, including nothing
4. After you have set the label, click OK and close the Edit Total dialog box
Note: In Desktop, this is done via a drop-down from the Total dialog box. If you click the drop-down, the last item in the list is called Generate Label Automatically. If you uncheck this you can create your own label.
Your second issue concerning the non-totaling of the grand total on some items means that there is something preventing one or more of the totals from calculating. First of all, try to determine which item or items is causing the problem by adding individual totals to each of the desired columns. You will eventually find the column which has the culprit. If you use the above workflow to suppress the display of any labels your total line will look as though you have totaled all items.
Next, having found the column that will not total, try to figure out why the values will not add up. Could the column be a calculated item? If so, it is possible that you have used SUM on the outside of the calculation, like this:
SUM(some item - some other item) - this will not total if the original items themselves are in the query and are also being summed. This is because you are mixing aggregate and detail items within the total.
Try changing the formula like this:
SUM(some item) - SUM(some other item) and see if this helps.
If this is not the cause then try changing the formula for that column's total to CELL SUM instead of SUM. This causes Discoverer to literally add the values in the column.
If this is not the cause, could you possibly be trying to total repeated values? By default, this is disabled in the later versions of Discoverer. The repeated values will be caused if you have multiple joins in your query and the item that you are totaling is from the many end of a one to many relationship. Suppose you had items from a header table and line table in the same worksheet with there being multiple lines for the same header, and now let's say you have a column which is returning something from the header. That value will get repeated and if you try to total it would generate the wrong answer, hence out of the box Discoverer is trying to protect you from yourself.
However, it could be that the column really should be totaled but because Discoverer has detected a one to many join it will not total that column. To prove that this is the reason, change the join from a one to many to a one to one. Don't worry, this won't stop the query from working. If this allows the total to work then you can either leave the join as it is with a one to one, which won't harm Discoverer or you can edit the pref.txt on the server and change one of the preferences.
The preference I would change is called AllowAggregationOverRepeatedValues. By default this is disabled and will be set to 0. Changing this to a 1 will now tell Discoverer that repeated values can now be totaled. Don't forget to apply the preferences correctly by execiting applypreferences.bat, on Windows or applypreferences.sh, in Linux or Unix, and then stopping and restarting the Discoverer server.
I hope this helps
Best wishes
Michael Armstrong-Smith
URL: http://learndiscoverer.com
Blog: http://learndiscoverer.blogspot.com