TableControl - Number of Rows - Determination
Hi,
Currently i have enabled Vertical and Horizontal Resizing in Screen Painter. However, it displays only as many rows on ITS Page that appears on Table Control in screen painter.
For example, if Table control contains 10 rows i see only 10 rows filled in with records on ITS Page too. How do i make Table on ITS Page to accept records dynamically, say 100 records.
Do i need to change the attribute of Table control or should i make changes to BHTML in ITS Page?
Thanks,
Shankar K.
Hi Shankar K.
are you also using templates for your service or are
you just going with the Easy Web Transaction meaning you make use of the SAPGui for HTML build into ITS?
If you want to use a Table Control your only chance
is to change the size of the Table Control on the dynpro.
If you do your own templates there is also the option use a "step loop" instead of a table control. This is a very old thing in Dynpro Development but it returns all the rows in a table at once. Never the less it lacks many of the cool feature table controls provide and its also a total rewrite of your abap code.
Maybe you want to search http://help.sap.com a bit for the info on step loops but I guess there is not really any good information out as it is a very old technique.
regards Ingo
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Edited by: user1678248 on May 13, 2013 9:39 PM
Edited by: user1678248 on May 13, 2013 9:40 PM1)
When you set a column to hidden in a classic report using the method I described, it creates hidden form elements for that column.
<tt><input type="hidden" name="f01" value="" id="f01_0002"></tt>
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Alternatively, you could have used the apex_item API to achieve the same result, which probably gives a bit better control.
http://docs.oracle.com/cd/E37097_01/doc/doc.42/e35127/apex_item.htm#CHDBFHGA
select apex_item.hidden(1, col) || col col
from table
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You can also reference the data in these fields using PL/SQL using the apex_application API:
http://docs.oracle.com/cd/E37097_01/doc/doc.42/e35127/apex_app.htm#CHDGJBAB
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6 250 41
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How to find number of rows in a table
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regards,
singhOk, that only was to show simply that max option
might not an option to reduce execution time.Yes, but I/O variances have a tendency to really skew the observed elapsed execution time - making execution time alone a poor choice to determine what SQL will perform better than another.
Both MAX(ROWNUM) and COUNT(*) results in the same amount of I/O - as both uses the exact same execution plan, I/O wise. In this example, a FTS.
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Plan hash value: 2656308840
| Id | Operation | Name | Rows | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 35 (9)| 00:00:01 |
| 1 | SORT AGGREGATE | | 1 | | |
| 2 | TABLE ACCESS FULL| TESTTAB | 9262 | 35 (9)| 00:00:01 |
Note
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0 recursive calls
0 db block gets
131 consistent gets
0 physical reads
0 redo size
223 bytes sent via SQL*Net to client
238 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
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MAX(ROWNUM)
10000
Execution Plan
Plan hash value: 2387991791
| Id | Operation | Name | Rows | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 35 (9)| 00:00:01 |
| 1 | SORT AGGREGATE | | 1 | | |
| 2 | COUNT | | | | |
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0 physical reads
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238 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
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2 cnt number;
3 begin
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7 end loop;
8 end;
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3 begin
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This shows that what makes the MAX() more expensive is just that - determining the MAX(). For each row, Oracle has to call its internal MAX() function with two values - the current max result and the new value. This function then returns the new max value. This overhead per row adds up to a significant overhead in execution time - making the MAX() approach 5x slower than the COUNT() approach. -
How to set number of rows in filters?
Hi, we need to set another number of rows which is displayed in filters on bex or web template?
Thanks for adviceHi Pavel,
can you please specify your question more clearly. If you are on NW 7.0 you can determine a number of colums for your filter item with following command:
COLUMNS
http://help.sap.com/saphelp_nw70ehp1/helpdata/en/85/08e241aa8e9d39e10000000a155106/content.htm
If you meant the amount of rows within the analysis item you can use following command within your analysis item:
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BLOCK_ROWS_STEP_SIZE (numbers of rows to be scrolled for one step)
http://help.sap.com/saphelp_nw70ehp1/helpdata/en/76/489d39d342de00e10000000a11402f/content.htm
Brgds,
Marcel
Edited by: Marcel Landsfried on Feb 10, 2009 7:45 PM
Edited due to wrong url -
How to set number of rows in "Rows Per Page Selector" in Interactive Report
Hi Guys,
Is there any way to set the number of rows in "Rows Per Page Selector" in Interactive Report. By default it is set to 15.
I know one way is to change the number of rows when you are running the report and then set that as 'Default Report Setting'.
If anybody is aware of any other way, please let me know.
Cheers,
Ashish Agarwal
http://www.dbcon.com.sgHi Pavel,
can you please specify your question more clearly. If you are on NW 7.0 you can determine a number of colums for your filter item with following command:
COLUMNS
http://help.sap.com/saphelp_nw70ehp1/helpdata/en/85/08e241aa8e9d39e10000000a155106/content.htm
If you meant the amount of rows within the analysis item you can use following command within your analysis item:
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http://help.sap.com/saphelp_nw70ehp1/helpdata/en/76/489d39d342de00e10000000a11402f/content.htm
Brgds,
Marcel
Edited by: Marcel Landsfried on Feb 10, 2009 7:45 PM
Edited due to wrong url -
How to Efficiently Sample a Fixed Number of Rows
Good afternoon. I need to select a specific number of random rows from a table, and while I believe my logic is right it's taking too long, 30 minutes for a routine data size. Hopefully someone here can show me a more efficient query. I've seen the SAMPLE function, but it just randomly selects rows on a one-by-one basis, without a guaranteed total count.
This is the idea:
INSERT INTO Tmp_Table (Value, Sequence) SELECT Value FROM Perm_Table, DBMS_RANDOM.VALUE;
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Project Person Sequence Position Keeper
A Bill 1234 1 Yes
A Fred 5678 3 No
A George 1927 2 Yes
B April 5784 2 No
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Populating the list with random values is not time-consuming, but calculating Position is. This is my code:
UPDATE Tmp_Targets T1
SET Position =
SELECT
COUNT(*)
FROM
Perm_Targets PT1
INNER JOIN Perm_Targets PT2 ON PT1.Project = PT2.Project
INNER JOIN Tmp_Targets T2 ON PT2.Target = T2.Target
WHERE
T1.Target = PT1.Target
AND T2.Sequence <= T1.Sequence
);The Target fields are PKs, and the Project and Sequence fields are indexed. Is there a better way to approach this? I could write a cursor that pulls out project codes and performs the above operations for each project in turn; that would be logically simpler and possibly faster. Has anyone here addressed a similar problem before? I'd appreciate any ideas.
This is on 9.2, in case it matters. Thank you,
JonathanYou've not given any indication of how max targets for a given project is determined, so for my example I'm using the ceiling of 1/2 of the number of records in each project which gives the same number of yes and no responses per project as you had:
with dta as (
select 'A' project, 'Bill' person from dual union all
select 'A', 'Fred' from dual union all
select 'A', 'George' from dual union all
select 'B', 'April' from dual union all
select 'B', 'Janice' from dual
), t1 as (
select project
, person
, row_number() over (partition by project order by dbms_random.value) ord
, count(*) over (partition by project) cnt
, rownum rn
from dta
select project
, person
, ord
, cnt
, case when ord <= ceil(cnt/2) then 'Yes' else 'No' end keep
from t1
order by rn
PROJECT PERSON ORD CNT KEEP
A Bill 2 3 Yes
A Fred 3 3 No
A George 1 3 Yes
B April 1 2 Yes
B Janice 2 2 No
5 rows selectedIn this example I use an analytic function to assign a random ordering for each record within a project in the middle query, in the final output query I am determining the yes no status based on the order within a project and the count of records in the project. If you had a table of projects indicating the thresh hold you could join to that and use the thresh hold in place of the ceil(cnt/2) portion of my inequality in the case statement. -
hi,
is there any way to limit the number of rows in a jtextpane, i am able to limit the number of chars entered in using the insertString method, but i also need to limit the number of rows, for example the user should not be able to enter more than 200 chars or go beyond 5 lines, i can catch the 200 chars but am having problems with the lines. i can detect when enter is pressed, using hashCode() but i have problems when dealing with the delete key, knowing when a row is deleted and with line wrap, since that's not a enter being pressed.
Thanks.Sounds like you are already using a DocumentListener to control the effect of changes, which is what you should be doing. You need a method of determining the number of rows displayed in the JTextPane... do you have one? And I don't see what the problem is with deletes, I can't imagine a scenario where deleting a character could increase the number of rows displayed.
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Hi,
I have a Data View that is linked to a table in an MS Access database.
How can I determine the number of rows that are in the data view?
Thanks,
ChrisThat is what I feared. I've tried isEOF in a loop but it just kept on going.
I then found that you needed to ...setAttribute("stayBOF", "bofAction") and ..setAttribute("stayEOF", "eofAction"). I added this but the code bombed on these lines and failed to set the bofAction and eofAction. That is the subject of another current discussion but unfortunately I haven't received any responses to that.
So I've now put together a small pdf (attached) that shows what I'm trying to achieve (I hope) and the problems that I'm having.
I'm trying to populate a pdf table with records from an external table (on varying number of rows. To run you will need to create an ODBC Data Source to the enclosed Access mdb. Mine was called NRSP.
Hopefully you will have the same problems that I'm having. If not then the errors could be with my computer or setup. Unfortunately I don't have access to another computer with LifeCycle Designer (I'm using 8.0) to test it on.
PLEASE have a look at the pdf and let me know where I'm going wrong. I'm tearing my hair out trying to get this to work.
Thanks,
Chris -
Hi,
We have a new implementation of Enterprise X1 3.1 and are trying to determine what determines the maximum number of rows that can successfully be generated using Webi. Is there a hard limit that Webi has (assuming the Universe max rows is deactivated)?
Also, is there a limit for Live Office extractions into Excel? What are the main drivers for this limit?
Finally, all other factors being equal, are there different limits for the number of rows a query can return successfully in Webi vs Deski vs BEx? How does the performance of these three tools compare to each other in terms of speed?
Thanks!
DarrylThanks for your reply! I also got a response back from SAP / BObj that I'll share:
Q) We have a new implementation of Enterprise X1 3.1 and are trying to determine what determines the maximum number of rows that can successfully be generated using Webi. Is there a hard limit that Webi has (assuming the Universe max rows are deactivated)?
=> There is a limit to the number of pages Web Intelligence reports can have. This is because there are a maximum number of pages (per report) the server can process. This number depends on the paper size chosen. Generally, it is approximately 590000 inches vertically by 590000 inches horizontally. Therefore, if you choose a smaller paper size, you get more pages but may not see all the pages of the report.
Resolution:
To work around this behavior, you can either make each line smaller to get more records, or split your report into more than one report to see all your data.
Q) Is there a limit for Live Office extractions into Excel? What are the main drivers for this limit?
=> By default its set to 512 rows and columns....however you can change this by modifying the Liveoffice_config.properties file...you can locate this file in /dswsbobje/lib/dsws_liveoffice_provider.jar.
Q) Are there different limits for the number of rows a query can return successfully in Webi vs. Deski?
=> Although there is no official limit on the number of rows that can be handled by DeskI, it is really not meant to be used like a database, i.e. for returning millions of rows. The purpose of BusinessObjects reporting tools is to get useful information, which is not possible with millions of rows.
=> It has been observed that when the number of rows increases beyond 1.5 million approximately, it starts affecting the Desktop Intelligence performance. This behavior may vary from machine to machine depending upon the available resources and programs (processes) running in the background.
=> The limit is related to the number of rows those can actually be displayed in the report and not how many can be loaded into the data cube. All the rows get loaded in the cube however when it comes to rendering them in the report the problem may arise.
Example: Report A returns 2 million rows into the cube however due to the report design there are only 200 rows in the actual report page and can be run successfully. Report B tries to render all 2 million rows into the actual report page and can fail.
Workaround:
Use filters in the report so that it will retrieve less number of rows and will also help to display useful data.
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