Problem displaying nodata. I want my report to display the title if there is no data for the particular cilumn
DEFINE FILE CAR
ROW_NAME/A225V = IF SEATS EQ '1' THEN 'ROW1' ELSE IF SEATS EQ '2' THEN 'ROW2' ELSE IF SEATS EQ '3' THEN 'ROW3' ELSE '';
TABLE FILE CAR
WHERE COUNTRY EQ 'INDIA'
if in the above code if for INDIA there is no value for 1 and 2 i still want the reprot to display like below
row_name country count ROW1 INDIA 0 ROW2 INDIA 0 ROW3 INDIA 6This message has been edited. Last edited by: Kerry,
769 Excel,PDF and HTML
January 03, 2011, 08:18 AM
This is not a question of NODATA as such. NODATA comes into play when a field within a record has not been assigned a value. What you are looking for is displaying entire records that are not existing. That requires a totally different approach. You would have to invent a means of providing those non-existing records and add them to the report. It is possible to do this using, for instance, the MATCH command.
- Using AS 8.2.01 on Windows 10 - IE11.
in Focus since 1988
January 03, 2011, 08:05 PM
WHERE COUNTRY EQ 'INDIA'
Nail on the head as we say.
That = 0 lines;
MATCH will not help as you have nothing to MATCH against.
By having that WHERE clause you are effectively saying to WebFOCUS DO NOT SELECT ANY DATA.
As GamP says this is not a question of NODATA it is actually really a No Data Situation, which are 2 very different things.
I know that on the forum we regularly ask for a repro against standard WF sample files (CAR in particular)
But in this case it is totally invalid because of the WHERE.
Very basically WebFOCUS works like this. 1. Generate the focexec. 2. Run the focexec. 3. Translate the focexec into the required language for the adapter, (oracle sql, Mssql, MDX etc.) 4. Return the rows that meet any selection criteria passed to the adapter. 5. Process the returned rows in any DEFINE 6. Accumulate the rows based on the verb (PRINT, SUM) 7. Perform any COMPUTE’s on the accumulated answer set. 8. Deliver the output.
There is potentially a lot more going on but that’s the absolute basic.
For you with this example the WHERE clause means that the process fails at step 4 simply because no data rows are returned.
January 04, 2011, 04:15 AM
Try this DEFINE FILE CAR ROW_NAME/A225V = IF SEATS EQ '1' THEN 'ROW1' ELSE IF SEATS EQ '2' THEN 'ROW2' ELSE IF SEATS EQ '3' THEN 'ROW3' ELSE ''; END TABLE FILE CAR PRINT CNT.ROW_NAME FOR ROW_NAME ROW1 OVER ROW2 OVER ROW3 WHERE COUNTRY EQ 'INDIA' END
January 04, 2011, 04:20 AM
Naturally you tested that before posting it.
NUMBER OF RECORDS IN TABLE= 0 LINES= 0
January 04, 2011, 10:44 AM
Shru - is there any sort of join prior to your report that may affect your define or missing data?
Otherwise, if I understand correctly, you might be able to use ROWS...OVER like this:
BY ROW_NAME ROWS ROW1 OVER ROW2 OVER ROW3
This creates "buckets" for all possible values in your BY field whether there is data or not.
In addition, if you use this and are exporting to Excel and want to set your NODATA value, you need to set another command: SET EMPTYCELLS = OFF SET NODATA = [your value]
WF (App Studio) 8.2.01m / Windows Mainframe FOCUS 8
January 04, 2011, 12:09 PM
Bob read the last 2 posts
January 05, 2011, 04:38 AM
JG, There are zero records because there is no data in the CAR file for 'INDIA' not because the code is wrong.
Try If COUNTRY EQ 'ENGLAND' and BTW change the PRINT to a SUM for a more meaningful result.
The point was to show the use of OVER to create rows in the report even when data does not exist in the file being reported from.
January 05, 2011, 05:38 AM
there is no data in the CAR file for 'INDIA'
That's exactly the point.
Shru wants to generate an output when there are no rows
January 06, 2011, 05:20 AM
OK but what's the point of that?
January 06, 2011, 07:07 PM
If there always has to be output for certain values, even if there is no data, you might want to create a control file with all the possible values that must appear (countries in this case). You then do an outer join between your control file and your data.