JDev: af:table with a large number of rows

Hi
We are developing with JDeveloper 11.1.2.1. We have a VO that returns > 2.000.000 of rows and that we display in a af:table with access mode 'scrollable' (the default) and 'in Batches of' 101. The user can select one row and do CRUD operations in the VO with popups. The application works fine but I read that scroll very large number of rows is not a good idea because can cause OutOfMemory exception if the user uses the scroll bar many times. I have tried with access mode in 'Range Paging' but the application works in strange ways. Sometimes when I select a row to edit, if the selected row is the number 430 in the popup is show it the number 512 and when I want to insert a new row throws this exception:
oracle.jbo.InvalidOperException: JBO-25053: No se puede navegar con filas no enviadas en RangePaging RowSet.
     at oracle.jbo.server.QueryCollection.get(QueryCollection.java:2132)
     at oracle.jbo.server.QueryCollection.fetchRangeAt(QueryCollection.java:5430)
     at oracle.jbo.server.ViewRowSetIteratorImpl.scrollRange(ViewRowSetIteratorImpl.java:1329)
     at oracle.jbo.server.ViewRowSetIteratorImpl.setRangeStartWithRefresh(ViewRowSetIteratorImpl.java:2730)
     at oracle.jbo.server.ViewRowSetIteratorImpl.setRangeStart(ViewRowSetIteratorImpl.java:2715)
     at oracle.jbo.server.ViewRowSetImpl.setRangeStart(ViewRowSetImpl.java:3015)
     at oracle.jbo.server.ViewObjectImpl.setRangeStart(ViewObjectImpl.java:10678)
     at oracle.adf.model.binding.DCIteratorBinding.setRangeStart(DCIteratorBinding.java:3552)
     at oracle.adfinternal.view.faces.model.binding.RowDataManager._bringInToRange(RowDataManager.java:101)
     at oracle.adfinternal.view.faces.model.binding.RowDataManager.setRowIndex(RowDataManager.java:55)
     at oracle.adfinternal.view.faces.model.binding.FacesCtrlHierBinding$FacesModel.setRowIndex(FacesCtrlHierBinding.java:800)
     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
     at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
<LoopDiagnostic> <dump> [8261] variableIterator variables passivated >>> TrackQueryPerformed def
<LifecycleImpl> <_handleException> ADF_FACES-60098:El ciclo de vida de Faces recibe excepciones no tratadas en la fase RENDER_RESPONSE 6
What is the best way to display this amount of data in a af:table and do CRUD operations?
Thanks
Edited by: 972255 on 05/12/2012 09:51

Hi,
honestly, the best way is to provide users with an option to filter the result set displayed in the table to reduce the result set size. No-one will query 2.00.000 rows using the table scrollbar.
So one hint for optimization would be a query form (e.g. af:query)
To answer your question "srollable" vs. "page range", see
http://docs.oracle.com/cd/E21043_01/web.1111/b31974/bcadvvo.htm#ADFFD1179
Pay attention to what is written in the context of +"The range paging access mode is typically used for paging through read-only row sets, and often is used with read-only view objects.".+
Frank

Similar Messages

Pivot table with very large number of columns

Hello,
here is the situation:
One table that contains raw data; from this table I feed one with extract information (3 fields); I have to turn the content in a pivot table
Ro --- Co --- Va
A A 1
A B 1
A C 2
B A 11
Turned in
A B C...
A 1 1 2
B 11 null null
To do this I do a query like:
select r, sum(decode(c,'A',Va) COLA, sum(decode(c,'B',Va) COLB , sum(decode(c,'C',Va) COLC,.... sum(decode(c,'XYZ',Va) COLXYZ from table group by r
The statement is generated by a script (cfmx) and it works until I reach a query that try to have 672 values for c; which means 672 columns...
Oracle doesn't like that: ORA-01467: sort key too long
I like this way has it is getting the result fast.
I have tried different solution a the CFMX level with for that specific query, I got timeout (query table with loop on co within loop on ro)
Is there any work around?
I am using Oracle 9i.
Tahnk you!

insert into extracted_data select c, r, v, p from full_data where <specific_clause>
The values for C are from a query: select disctinct c from extracted_data
and it is the same for R
R and C are varchar2(3999)
I suppose that I can split on the first letter of the C column as:
SELECT r, low.cola, low.colb, . . ., low.colm,
high.coln, high.colo, . . ., high.colz
FROM (SELECT r, SUM(DECODE(c, 'A', va)) cola, . . .
SUM(DECODE(c, 'M', va)) colm
FROM table
WHERE c like 'A%'
GROUP BY r) Alpha_A,
(SELECT r, SUM(DECODE(c, 'N', va)) coln, . . .
SUM(DECODE(c, 'Z', va)) colz
FROM table
WHERE c like 'B%'
GROUP BY r) Alpha_B,
(SELECT r, SUM(DECODE(c, 'N', va)) coln, . . .
SUM(DECODE(c, 'Z', va)) colz
FROM table
WHERE c like 'C%'
GROUP BY r) Alpha_C
(SELECT r, SUM(DECODE(c, 'zN', va)) coln, . . .
SUM(DECODE(c, 'zZ', va)) colz
FROM table
WHERE c like 'Z%'
GROUP BY r) Alpha_Z
WHERE alpha_A.r = alpha_B.r and apha_a.r = alpha_C.r ... and alpha_a.r = alpha_z.r
I will have 27 select statement joined... I have to check if even like that I will not reach the limit within one of the statement select
"in real life"
select GRPW.r, GRPW.W0, GRPC.C0, GRPC.C1 from
(select r, sum(decode(C, 'Wall, unspecified',cases)) W0 from tmp_maqueje where upper(C) like 'W%' group by r) GRPW,
select r,
sum(decode(C, 'Ceramic tiles, indoors',cases)) C0,
sum(decode(C, 'Cement surface, outdoors (Concrete/cement block, see Structural element, A11)',cases)) C1
from tmp_maqueje where upper(C) like 'C%' group by r) GRPC
where GRPW.r = GRPC.r
order by GRPW.r, GRPW.W0, GRPC.C0, GRPC.C1
Message was edited by:
maquejp

How to make a control table with the same number of rows of its itab

I'm creating a control table, but it always have the maximum number of lines possible.
How can I make it so that it has only the same number of rows of it's internal table?

solved partialy with this:
MODULE locka_lin OUTPUT.
DATA: lin TYPE i.
DESCRIBE TABLE t_obj LINES lin.
table_con-lines = lin.
ENDMODULE. " OUTPUT
but it still doent work when lin = 0
any simple way to solve it on that case?
Edited by: RagnaRock on May 5, 2010 6:00 PM

How to Capture a Table with large number of Rows in Web UI Test?

HI,
Is there any possibility to capture a DOM Tabe with large number of Rows (say more than 100) in Web UI Test?
Or is there any bug?

Hi,
You can try following code to capture the table values.
To store the table values in CSV :
*web.table( xpath_of_table ).exportToCSVFile("D:\exporttable.csv", true);*
TO store the table values in a string:
*String tblValues=web.table( xpath_of_table ).exportToCSVString();*
info(tblValues);
Thanks
-POPS

Af:table Scroll bars not displayed in IE11 for large number of rows

Hi. I'm using JDeveloper 11.1.2.4.0.
The requirements of our application are to display a table potentially displaying very large numbers of rows (sometimes in excess 3 million). While the user does not need to scroll through this many rows, the QBE facility allows drill-down into specific information in the rowset. We moved up to JDeveloper 11.1.2.4.0 primarily so IE11 could be used instead of IE8 to overcome input latency in ADF forms.
However, it seems that IE11 does not enable the vertical or horizontal scroll bars for the af:table component when the table contains greater than (approx) 650,000 rows. This is not the case when the Chrome browser is used. Nor was this the case on IE8 previously (using JDev 11.1.2.1.0).
When the table is filtered using the QBE (to a subset < 650,000 rows), the scroll bars are displayed correctly.
In the code the af:table component is surrounded by an af:panelCollection component which is itself surrounded by an af:panelStretchLayout component.
Does anyone have any suggestions as to how this behaviour can be corrected? Is it purely a browser problem, or might there be a programmatic workaround in ADF?
Thanks for your help.

Thanks for your response. That's no longer an option for us though...
Some further investigation into the generated HTML has yielded the following information...
The missing scroll bars appear to be as a consequence of the setting of a style for the horizontal and vertical scroll bars (referenced as vscroller and hscroller in the HTML). The height of the scrollbar appears to be computed by multiplying the estimated number of rows in the iterator on which the table is based by 16 to give a scrollbar size proportional to the amount of data in the table, although it is not obvious why that should be done for the horizontal scroller. If this number is greater than or equal to 10737424 pixels then the scroll bars do not display in IE11.
It would seem better to be setting this height to a sensible limiting number of pixels for a large number of rows?
Alternatively, is it possible to find where this calculation is taking place and override its behaviour?
Thanks.

Problem in compilation with very large number of method parameters

I have java file which I created using WSDL2Java. Since the actual WSDL has a complex type with a large number of elements(around 600) in it, Consequently the resulting java file(from WSDL2Java) has a method that takes 600 parameters of various types. When I try to compile it using javac at command prompt, it says "Too many parameters" and doesn't compile. The same is compiling successfully using JBuilder X . The only way I could compile successfully at command prompt is by reducing the number of parameters to around 250 but unfortunately that it's not a workable solution. Does Sun specify any upper bound on number of parameters that can be passed to a method?

... a method that takes 600 parameters ...Not compatible with the spec, see Method Descriptors.
When I try to compile it using javac at
command prompt, it says "Too many parameters" and
doesn't compile.As it should.
The same is compiling successfully using JBuilder X .If JBuilder produces a class file, that class file may very well be invalid.
The only way I could compile
successfully at command prompt is by reducing the
number of parameters to around 250Which is what the spec says.
but unfortunately that it's not a workable solution.Pass an array of objects - an array is just one object.
Does Sun specify
any upper bound on number of parameters that can be
passed to a method?Yes.

Old files with a large number of comments no longer work properly in either Adobe Acrobat DC or or Acrobat Reader

I made a series of interactive ebooks wiith Adobe Acrobat Pro. They worked fine in the old Adobe Reader. But now the commenting feature does not work properly either in Adobe Reader DC or Adobe Acrobat DC. When I open the comments, everything slows down or else I get blank pages. The tools are not usable. There seems to be some compatibility issue between what was done in these books with the commenting tools and the new applications. Has anybody experienced the same?

Hi Anubha,
Thanks for your reply. With the new Acrobat Reader DC, I have the same problem on two computers, one with Windows 7 and one with Windows 8.1. I downloaded a trial version of Adobe Acrobat DC on the computer with 8,1. Then I found out that I had the same problem with Acrobat DC as I did with Reader DC.
I made these e-books with Acrobat Adobe Pro 11. I never had a problem with Pro 11 or with previous Readers. Also I have sent these e-books out to other people who had Reader 11 and they had no problems. Now it seems that the books are not usable – at least in the fullest way -- for me or for anyone else using the latest version of Reader.
Any help would be appreciated. I have put a lot of work into these e-books.
De : Anubha Goel
Envoyé : April-21-15 12:47 AM
À : michael jaegermeister
Objet : You have been mentioned by Anubha Goel in Re: old files with a large number of comments no longer work properly in either Adobe Acrobat DC or or Acrobat Reader in Adobe Community
You have been mentioned
by Anubha Goel <https://forums.adobe.com/people/Anubha+Goel?et=notification.mention> in Re: old files with a large number of comments no longer work properly in either Adobe Acrobat DC or or Acrobat Reader in Adobe Community - View Anubha Goel's reference to you <https://forums.adobe.com/message/7456900?et=notification.mention#7456900>

General Scenario- Adding columns into a table with more than 100 million rows

I was asked/given a scenario, what issues do you encounter when you try to add new columns to a table with more than 200 million rows? How do you overcome those?
Thanks in advance.
svk

For such a large table, it is better to add the new column to the end of the table to avoid any performance impact, as RSingh suggested.
Also avoid to use any default on the newly created statement, or SQL Server will have to fill up 200 million fields with this default value. If you need one, add an empty column and update the column by using small batches (otherwise you lock up the whole
table). Add the default after all the rows have a value for the new column.

Oracle Error 01034 After attempting to delete a large number of rows

I sent the command to delete a large number of rows from a table in an oracle database (Oracle 10G / Solaris). The database files are located at /dbo partition. Before the command the disk space utilization was at 84% and now it is at 100%.
SQL Command I ran:
delete from oss_cell_main where time < '30 jul 2009'
If I try to connect to the database now I get the following error:
ORA-01034: ORACLE not available
df -h returns the following:
Filesystem size used avail capacity Mounted on
/dev/md/dsk/d6 4.9G 5.0M 4.9G 1% /db_arch
/dev/md/dsk/d7 20G 11G 8.1G 59% /db_dump
/dev/md/dsk/d8 42G 42G 0K 100% /dbo
I tried to get the space back by deleting all the data in the table oss_cell_main :
drop table oss_cell_main purge
But no change in df output.
I have tried solving it myself but could not find sufficient directed information. Even pointing me to the right documentation will be higly appreciated. I have already looking at the following:
du -h :
du -h8K ./lost+found
1008M ./system/69333
1008M ./system
10G ./rollback/69333
10G ./rollback
27G ./data/69333
27G ./data
1K ./inx/69333
2K ./inx
3.8G ./tmp/69333
3.8G ./tmp
150M ./redo/69333
150M ./redo
42G .
I think its the rollback folder that has increased in size immensely.
SQL> show parameter undo
NAME TYPE VALUE
undo_management string AUTO
undo_retention integer 10800
undo_tablespace string UNDOTBS1
select * from dba_tablespaces where tablespace_name = 'UNDOTBS1'
TABLESPACE_NAME BLOCK_SIZE INITIAL_EXTENT NEXT_EXTENT MIN_EXTENTS
MAX_EXTENTS PCT_INCREASE MIN_EXTLEN STATUS CONTENTS LOGGING FOR EXTENT_MAN
ALLOCATIO PLU SEGMEN DEF_TAB_ RETENTION BIG
UNDOTBS1 8192 65536 1
2147483645 65536 ONLINE UNDO LOGGING NO LOCAL
SYSTEM NO MANUAL DISABLED NOGUARANTEE NO
Note: I can reconnect to the database for short periods of time by restarting the database. After some restarts it does connect but for a few minutes only but not long enough to run exp.

Check the alert log for errors.
Select file_name, bytes from dba_data_files order by bytes;
Try to shrink some datafiles to get space back.

Analyse a partitioned table with more than 50 million rows

Hi,
I have a partitioned table with more than 50 million rows. The last analyse is on 1/25/2007. Do I need to analyse him? (query runs on this table is very slow).
If I need to analyse him, what is the best way? Use DBMS_STATS and schedule a job?
Thanks

A partitioned table has global statistics as well as partition (and subpartition if the table is subpartitioned) statistics. My guess is that you mean to say that the last time that global statistics were gathered was in 2007. Is that guess accurate? Are the partition-level statistics more recent?
Do any of your queries actually use global statistics? Or would you expect that every query involving this table would specify one or more values for the partitioning key and thus force partition pruning to take place? If all your queries are doing partition pruning, global statistics are irrelevant, so it doesn't matter how old and out of date they are.
Are you seeing any performance problems that are potentially attributable to stale statistics on this table? If you're not seeing any performance problems, leaving the statistics well enough alone may be the most prudent course of action. Gathering statistics would only have the potential to change query plans. And since the cost of a query plan regressing is orders of magnitude greater than the benefit of a different query performing faster (at least for most queries in most systems), the balance of risks would argue for leaving the stats alone if there is no problem you're trying to solve.
If your system does actually use global statistics and there are performance problems that you believe are potentially attributable to stale global statistics and your partition level statistics are accurate, you can gather just global statistics on the table probably with a reasonably small sample size. Make sure, though, that you back up your existing statistics just in case a query plan goes south. Ideally, you'd also have a test environment with identical (or nearly identical) data volumes that you could use to verify that gathering statistics doesn't cause any problems.
Justin

Creating a table with a variable number of columns

Hi,
I am working on a form and I want to allow the user to add tables to the form. If I give them a base table (for instance, a table with two rows and columns) is there any way to allow the user to add columns to the table. I can add new instances of rows, but I need the number of columns to be variable as well.
I am working in Livecycle Designer ES2

Hi,
check this article.
http://forms.stefcameron.com/2006/10/28/scripting-table-columns/
Hope this helps.

Reading a csv file with a large number of columns

Hello
I have been attempting to read data from large csv files with 38 columns by reading a line using readline and scanning the linebuffer using scan.
The file size can be up to 100 MB.
Scan does not seem support the large number of fields.
Any suggestions on reading the 38 comma separated fields. There is one header line in the file.
Thanks
Solved!
Go to Solution.

see if strtok() is useful http://www.elook.org/programming/c/strtok.html

L3 topology diagram with a large number of networks

I am working on redesigning a network that is using a single class B network for there LAN workstations and servers. I proposed for them to separate the two and put all of their servers into one class C network and the workstation in another class C. They stated that they wanted 14 separate networks for the workstations, different for section of the building, and 28 for the servers. The reason for the 28 is due to the fact they didn't keep track of how they used their address space and they do not want to renumber servers due to firewall rules. I have 50 networks hanging off of the collapsed core switch "WS-C6513-E" and finding room for all of these network is quite difficult. Does anyone have any experience with creating network topology diagrams with a large amount of networks hanging off of one device? I have attached a doc of what I have done.

Brandon
Sorry, you did say that in the last bit of your first post.
Last time i was doing topology diagrams i believe Visio had a pop up function where you could click over it but obviously if you are printing them out that does no good.
Unless you can summarise them to one entry with a note of how many subnets are being used within the summary i can't think of a way to do it. You could match the vlan number to the subnet (which you have partly done) and then just list the vlan numbers with the network prefix and make a note the subnet is derived from the vlan number.
Jon

Deleing large number of rows from table

Hi,
Consider tables A,B,C,D,E,F. all are having 100000++ records Tables B,C,D are dependent on table A (with foreign key constraint). When I am deleting records from all tables, table B,C,D are taking max 30-40 seconds while table A is taking 30-40 mins. All tables are having indexes.
Method I have used:
1. Created Temp table
2. then deleted all records from B,C,D,E,F for all records in temp table for limit of 500.
delete from B where exists (select 1 from temp where b.col1=temp.col1);
3. please suggest options for me why it is taking too much time for deleting records in table A.
Is there any thing that during deleting data from such master table, it is reffering to all dependent tables even if dependent data is not present ??? If yes then couls you please please suggest options for me to remove this ? I hope it won't go for CHECK constraints during deleting data.
Thanks,
Avinash
Edited by: user12952025 on Apr 30, 2013 2:55 AM
Edited by: user12952025 on Apr 30, 2013 2:56 AM
Edited by: user12952025 on Apr 30, 2013 2:57 AM

user12952025 wrote:
Hi,
Consider tables A,B,C,D,E,F. all are having 100000++ records Tables B,C,D are dependent on table A (with foreign key constraint). When I am deleting records from all tables, table B,C,D are taking max 30-40 seconds while table A is taking 30-40 mins. All tables are having indexes.What attribute of the Foreign key is specified? Is it On Delete Cascade? If yes, then in a way, deleting data fro Child tables is un-necessary. Only a Delete from parent shall suffice.
>
Method I have used:
1. Created Temp table
2. then deleted all records from B,C,D,E,F for all records in temp table for limit of 500.
delete from B where exists (select 1 from temp where b.col1=temp.col1);
3. please suggest options for me why it is taking too much time for deleting records in table A.
Is there any thing that during deleting data from such master table, it is reffering to all dependent tables even if dependent data is not present ??? If yes then couls you please please suggest options for me to remove this ? I hope it won't go for CHECK constraints during deleting data.One another way is to "Switch-Off" the relationship while deleting the data.
ALTER TABLE table_name
disable CONSTRAINT constraint_nameAnd then Delete the data from each of tables.
You did specify the number of rows in each table, it would have been better to mention the number of rows to be deleted.
It is not a hard-and-fast way, but would generally perform better, to copy the data (to be retained) from Parent Table into a Temporary Table, Drop Parent Table and rename teh Temporary table to parent table. Similar can be performed on Child tables.
You may then Enable the Foreign key constraints.

Form on a Table with Report - Auto Number

Hi,
Scenario:
I want to create "Form on a Table with Report" that should allow my users to add records...
Steps and issues
I created a table in MS Access with a field called "TRACKING_NO" as type Auto Number and made it a primary key... I was planning to use it to link Report to Form
When I uploaded the table to Oracle it changed the type to varchar2... can you please advice how to change it back to Auto number...?
and will it work if my user add a record to the table (using APEX built in option to create a record)...?
Thanks in advance

Hi,
this is what I would do.
1. Upload the table from MS Access, lets call it TAB_A
2. Using SQL-Workshop get the DDL (SQL statement) for this table
3. Change any names and/or datatypes as required
4. Create a new table with this DDL, lets call it TAB_O
5. Copy the contents from TAB_A to TAB_O (e.g. INSERT INTO TAB_O (id, colx, coly) SELECT TO_NUMBER(tracking_no), col1, col2 FROM TAB_A;)
6. Create a sequence which starts with the last PK + 1 of table TAB_A
7. Add a trigger to TAB_O to use this sequence to populate it's PK
By the way, working with APEX requires a solid understanding of Oracle SQL and PL/SQL, regardless of what anyone says, even Oracle.
Regards Garry

JDev: af:table with a large number of rows

Similar Messages

Maybe you are looking for