Update GUI during db query
Folks'es,
i have the following problem:
* i have to perform a database query during a drag operation
* the query can take quite some time
* while the query is performed, i would like to show at least some text in my GUI telling the user what happens
* i need to wait for the query to finish before i can continue.
question:
how can I update the GUI while a lengthy, synchronous operation is done on the event thread?
thomas
PS: i know about SwingUtilities.invokeLater() but i can't get it to do what i need (i'm too thick :().
I recommend the paintImmediately() method. Here is a
thread that shows it in action:
http://forum.java.sun.com/thread.jsp?forum=57&thread=23
114you're a hero! i must have been blind for the last 4 yrs!
thanx,
thomas
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Acrobat XI 11.0.06 update fails during install
acrobat XI 11.0.06 update fails during install. Any advice or help? Here is the installer log contents:
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Jan 17 00:33:44 fox.local installd[5955]: PackageKit: Install Failed: Error Domain=PKInstallErrorDomain Code=112 "An error occurred while running scripts from the package “AcrobatUpd11006.pkg”." UserInfo=0x7fb9615c5160 {NSFilePath=./postinstall, NSURL=file://localhost/Volumes/AcrobatUpd11006/AcrobatUpd11006.pkg#payload.pkg, PKInstallPackageIdentifier=com.adobe.acrobat.a11.AcrobatUpd11006, NSLocalizedDescription=An error occurred while running scripts from the package “AcrobatUpd11006.pkg”.} {
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Re: acrobat XI 11.0.06 update fails during install
created by Bill@VT <http://forums.adobe.com/people/Bill%40VT> in Acrobat
Installation & Update Issues - View the full discussion
<http://forums.adobe.com/message/6040206#6040206>
The upgrade is not the 11.0.06, but that is an update. The upgrade is what
you can purchase if you had a previous version of Acrobat (at least AA 9).
The upgrade is substantially less in price than the full product. With the
upgrade you also have to have the SN of the previous product available for
the install. That is why I asked about the upgrade. Once you install AA XI,
then going to 11.0.06 is a free update (updates are changes in the
sub-version and are done quarterly or when there is a critical security
issue). You can often fix installations by running a repair. In Windows
that is done either from Help>Repair or from the Control Panel. I do not
know the equivalent of the Control panel in the MAC. In any case I am glad
you got it fixed.
Please note that the Adobe Forums do not accept email attachments. If you
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email notifications please go to
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(paid support) Pacman Update GUI
Below the project description. If you are interested in doing this programming job, please email/pm me.
If there are questions, please reply to this post.
Pacman Update GUI
Archlinux (http://www.archlinux.org/) uses the pacman package manager. A number of GUI applications to control this package manager exist (http://wiki.archlinux.org/index.php/Pac … _Frontends), but none suit our needs.
For this project you will need to design and implement two independent GTK+ applications: an Update Manager and an Update Applet. The Update Manager must be an application that guides the user through updating the system. The Update Applet must be an application which shows a systray icon. This application will check for updates once in a while and notify the user if there are updates.
Both applications must be internationalized/localized and written in C, C++ or Python. The applications should have as little dependencies as possible. The applications must include installation scripts. The applications must be installed in compiled form. Any configuration needed for these tools should be systemwide. We do not need a gui for configuration.
Update Manager
The Update Manager must be an application that guides the user through the steps of updating the system with as little effort and as little user interaction as possible. You are expected to first define the minimal amount of steps required, design the application and then implement the application (gui and internals).
There are two possibilities for this applications:
1. You develop it from scratch.
2. You modify the gnome update manager (used in eg ubuntu) to work with pacman.
We will rely on your expertise to decide which approach is best.
Update Applet
The Update Applet provides a systray icon which checks for system updates in regular intervals. The applet should have a tooltip showing the update status, and a context menu with a few options, such as "Check for updates now", "About" and "start Update Manager". You are expected to design and implement the application.I don't get why you should allow your users to update their OS(that is their GUI, their kernel, xorg, libc and other _core_ functionality). These components are already quite "great" and shouldn't need upgrading if that is your worry. Only in the case of some new device coming out and the kernel or xorg need to support it i can see the problem. This should happen very rarely though. I mean, why should you allow your OS to be upgraded by some lowly non-tech users. I don't know of many workplaces which allow their users to upgrade their windows versions for example...
You could always upgrade the OS every X years if needed.
If the boss wants his emplyees to be able to download whichever apps/games they want then ofcourse you could allow this, but this should only be allowed if said apps/games doesn't drag in new versions of xorg, kernel versions or other core functionality or its dependencies.
Just blacklist these in pacman.conf and make the file unwritable for the users...
This way you only need external repo for apps which doesn't install without user intervention.
Here i define "core functionality" as all the code responsible for giving a "working computer" as defined by the boss and you if he's not very IT. If you are worried about security and this is why you want a constantly updating machine then just connect all the machines to a router/firewall before they are allowed onto the net. That one could be an arch machine...
Also I haven't tried xfce in a long while but you should watch against giving "windows users/mac users" anything which isn't glitzy and full-featured, because if the users doesn't think the OS have all the functionality they "need" and they don't think it looks fancy enough they have a tendency to go back to whatever OS they came from or try to "upgrade" their own os... which might spell problems for you.
You know, never underestimate the ingeniousness of an idiot.
Just my 5 cents.
Last edited by test1000 (2010-06-25 00:13:42) -
Updatable ResultSet for join Query
Hi all,
It is inevitable that i use a 'JOIN' operation for a particular query and i need the resultSet to be updated. Heard JDBC driver doesnt support this. Is there any workaround for this. Any help is really appreciated.
Thanks,
AbhijitWelcome to the forum!
>
It is inevitable that i use a 'JOIN' operation for a particular query and i need the resultSet to be updated. Heard JDBC driver doesnt support this.
>
As gimbal2 mentioned this isn't supported even by the latest 11g version and driver. See 'Result Set Limitations' in Chapter 17 of the JDBC doc for confirmation and discussion.
http://docs.oracle.com/cd/E14072_01/java.112/e10589/resltset.htm#BABBCECI
>
Result Set Limitations
The following limitations are placed on queries for enhanced result sets. Failure to follow these guidelines will result in the JDBC driver choosing an alternative result set type or concurrency type.
To produce an updatable result set:
A query can select from only a single table and cannot contain any join operations.
In addition, for inserts to be feasible, the query must select all non-nullable columns and all columns that do not have a default value.
A query cannot use SELECT * .
However, there is a workaround for this.
A query must select table columns only.
It cannot select derived columns or aggregates, such as the SUM or MAX of a set of columns.
>
>
Actually my exact requirement is i have two tables, earlier i used to select the results from one table and check for the existance of the corresponding record in the second table from the output of resultset. This is causing a lot of performance issue and i thought of using a single query by joining two tables which reduces the number of records.
>
So is this a correct description of what you want to do?
1. TableA and TableB have one or more columns in common.
2. Query TableA, possibly using filter predicates (WHERE tabA.col1 ...) and identify records in TableB that match on the join columns
3. Update the TableB records from step #2.
If so then you have a couple of options.
The record-by-record approach would be to execute your current query (the one that joins the two tables) but retrieve ONLY the ROWID from TableB. Then iterate thru the result set and use a separate query to get each TableB record by using the ROWID retrieved from the first query. This is different from your original approach because the first query WILL identify the TableB records you need it just won't retrieve them (only the ROWID).
Your original performance issues were probably because you were retrieving ALL of the TableA records and then checking each one to see if there were any TableB records for it.
The BULK approach would be a slight modification of of the record-by-record approach but pushes the work to the DB server.
This approach queries TableB to retrieve ONLY those records that EXIST in the query of TableA just described. So the query is of the form
SELECT * FROM TableB b WHERE EXISTS (SELECT '1' FROM TableA a WHERE a.col1 = b.col1); This query only uses one table for the resultset and does not contain any join operators so it can be updateable.
Test a simple query first until you get the syntax correct. -
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Hello guys,
I am using MacBook Pro with Retina Display with Power Nap turned on. I think it's a great feature, but I wouyld like more control — to be able to see the updates it has made while sleeping.
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I am updating GUI components in synchronized block which is runinng on main() thread my application hangs, but if I use SwingUtilities.invokeLater(...) then it runs fine.
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Edited by: Amol_Parekh on Nov 1, 2007 1:28 AMPaul Hyde in his "Java Thread Programming" (great book!!!) says it is.
With invokeLater() you say to the Thread Scheduler you want that code to run on the Swing thread. In fact, if that is the only thing you do in the synchronized block I think it is unnecessary.
Greetings,
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UPDATE statement based on query and return multiple value
Hi everybody,
I have two tables: temp3 and temp
One of them (temp3) should be updated based on the query where clause (id and flag columns).
I run this query but it updates all of the records in the temp3. I want to update only records with 'UPDATED' flag.
update temp3 t3
set (id,name,address) = (select t.id, t.name, t.address from temp t, temp3 t3
where t.id = t3.id and t.flag = 'UPDATED');
Does any body know how I can do it?
I appreciate your help
ThxHello
Basically you're missing a where clause on your update statement to restrict rows in t3 to the ones that have a corresponding row in t1.
SQL> select * from dt_test_t1;
ID NAME ADDRESS ROW_STATUS
1 Joseph Bloggs Some street UPDATED
1 Joe Bloggs Old street OLD
2 Fredrick Bloggs New street UPDATED
2 Fred Bloggs Some street OLD
3 Robert Bloggs Better street UPDATED
3 Bob Bloggs Some street OLD
100 Barry Bethel Some street UPDATED
200 Giles Brandreth Some street UPDATED
8 rows selected.
SQL> select * from dt_test_t3;
ID NAME ADDRESS ROW_STATUS
1 Joe Bloggs Old street
2 Fred Bloggs Some street
3 Bob Bloggs Some street
4 Joe Smith Some street
5 John Doe Some street
--this update as it stands does not work as it updates rows to have
--null name and address where there is not a proper matching row in
--t1
SQL> UPDATE
2 dt_test_t3 t3
3 SET
4 ( t3.name,
5 t3.address,
6 t3.row_status
7 ) = (SELECT
8 t1.name,
9 t1.address,
10 t1.row_status
11 FROM
12 dt_test_t1 t1
13 WHERE
14 t1.id = t3.id
15 AND
16 t1.row_status = 'UPDATED'
17 );
5 rows updated.
SQL> select * from dt_test_t3;
ID NAME ADDRESS ROW_STATUS
1 Joseph Bloggs Some street UPDATED
2 Fredrick Bloggs New street UPDATED
3 Robert Bloggs Better street UPDATED
4
5
SQL> rollback;
Rollback complete.
--Now add in the where clause to make sure we're only updating rows in
--t3 that have a corresponding row in t1:
SQL> UPDATE
2 dt_test_t3 t3
3 SET
4 ( t3.name,
5 t3.address,
6 t3.row_status
7 ) = (SELECT
8 t1.name,
9 t1.address,
10 t1.row_status
11 FROM
12 dt_test_t1 t1
13 WHERE
14 t1.id = t3.id
15 AND
16 t1.row_status = 'UPDATED'
17 )
18 WHERE
19 EXISTS( SELECT
20 NULL
21 FROM
22 dt_test_t1 t1
23 WHERE
24 t1.id = t3.id
25 AND
26 t1.row_status = 'UPDATED'
27 );
3 rows updated.
SQL> select * from dt_test_t3;
ID NAME ADDRESS ROW_STATUS
1 Joseph Bloggs Some street UPDATED
2 Fredrick Bloggs New street UPDATED
3 Robert Bloggs Better street UPDATED
4 Joe Smith Some street
5 John Doe Some streetHTH
David -
Hi all,
I need to perform a update based on a query which is returning mulitiple rows.
update abc1 set (c1,c2) = (select c1,c2 from
(select c1,c2 from abc
minus
select c1,c2 from abc1)
where c1 in (select c1 from (select c1,c2 from
(select c1,c2 from abc
minus
select c1,c2 from abc1) )));
giving me error ERROR at line 1:
ORA-01427: single-row subquery returns more than one row
what another method i can use for it?????An update without an where condition? Strange!! I guess you want to insert the data not update.
Here is your code. I formatted it.
UPDATE abc1
SET (c1, c2) =
(SELECT c1,
c2
FROM
(SELECT c1,
c2
FROM abc
MINUS
SELECT c1,
c2
FROM abc1)
WHERE c1 IN (SELECT c1
FROM (SELECT c1,
c2
FROM (SELECT c1,
c2
FROM abc MINUS
SELECT c1,
c2
FROM abc1))));I have no idea what you are trying to do here. Can you explain what you want to achieve?
Thanks,
Karthick. -
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Safe Mode
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How to find last accessed/updated tables and the query text?
I am using :
Oracle8i Enterprise Edition Release 8.1.7.4.0 - Production
With the Partitioning option
JServer Release 8.1.7.4.0 - Production
How to find last accessed/updated tables and the query text?
Regards
LEE1212Check DBA_TBALES view there you find one date column that indicate last update
One option is as follows:
(1) Turn the auditing on: AUDIT_TRAIL = true in init.ora
(2) Restart the instance if its running.
(3) Audit the table:
AUDIT INSERT,SELECT,DELETE,UPDATE on TableName
by ACCESS WHENEVER SUCCESSFUL
(4) Get the desired information using :
SELECT OBJ_NAME,ACTION_NAME ,to_char(timestamp,'dd/mm/yyyy , HH:MM:SS')
from sys.dba_audit_object.
Cheer,
Virag Sharma
http://virag.sharma.googlepages.com/
http://viragsharma.blogspot.com/
Message was edited by:
virag_sh -
Can I update datas of Power Query after making relation tables in Power Pivot ?
Can I update datas of Power Query after making relation tables in Power Pivot ?
I want to update datas at day by day to viewing today's graph by Power View on Excel.
Power Query use to transform web site to Power Pivot data model table.
Power Pivot use to making relasing tables, and making measuers.
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public class SynkroniseradVektorKlass
private Vector verde = new Vector();
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private SynkroniseradVektorKlass hemtaData;
public TradHarDataKommit(SynkroniseradVektorKlass hemtaData)
this.hemtaData=hemtaData;
public void run()
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System.out.println("Thread two done");
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public class NyTradKorSQLSats extends Thread
private String sqlSats;
private java.util.Timer timer;
private JLabel label;
private JFrame ram;
private SynkroniseradVektorKlass tilldelaData;
public NyTradKorSQLSats(String sqlSats,java.util.Timer timer,JLabel ,SynkroniseradVektorKlass tilldelaData,JFrame ram)
this.sqlSats=sqlSats;
this.timer=timer;
this.label=label;
this.tilldelaData=tilldelaData;
this.ram=ram;
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System.out.println("Thread one begins...");
//executes the sql query and retrieve data
tilldelaData.settVerde(klient.korKlient(sqlSats));
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timer.cancel();
label.setText("");
ram.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
System.out.println("Thread one done...");
//in actionPerformed
java.util.Timer timer = new java.util.Timer();
//boolean used to show when execution is done
boolean sokningInteFerdig=true;
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//class that retrieves information from dataFranSokning
TradHarDataKommit skrivUtData = new TradHarDataKommit(dataFranSokning);
//class that executes sql query, with arguments sql, a timer that updates
//the JLabel,the JLabel,the dataholding class, and a JFrame
NyTradKorSQLSats korTrad = new NyTradKorSQLSats("1Select namn from kundregister where kundnr=1",timer,statusRad,dataFranSokning,this);
//a TimerTask class that updates the JLabel
TimerStatusRad task1 = new TimerStatusRad(statusRad,"Searching...",this);
TimerStatusRad task2 = new TimerStatusRad(statusRad," ",this);
//starts timer task1 directly and restarts every second
timer.schedule(task1,0,1000);
//starts timer task 2 after a second and restarts every second after
timer.schedule(task2,1000,1000);
//set the sqlthread to daemon
korTrad.setDaemon(true);
//starts the thread
korTrad.start();
//I would like that the program halts here until korTrad is done
//because the data retrieved are to be used further in the program
//There is no point in using join(); because this would halt the update of the guiif anyone got any ideas how to solve this please help me
ps. sorry about my english, its not my native languageWas not able to review all of your code. But take a look at wait() and update() methods - they should solve what you need.
Denis Krukovsky
http://dotuseful.sourceforge.net/ -
Hi,
I'm just wondering whats the best way to write a VI that includes two parts: one being an event driven GUI and the second being a continuously updating data display (i.e. temperature displays and graphs)? Would the only way to accomplish this to have both the controls and data collection incorporated in one loop and forget about an event structure? Both controls and data collection is for the same device and each command/query requires sufficient time for the device to process.No, have the GUI display the data as well as have an event driven "control" part but put the data acquisition in another loop (or better yet another vi). They can communicate through any number of means; functional globals, queues, etc. Search on Producer-Consumer structures, both here (forum) and in the LabVIEW examples in your LabVIEW installation.
Putnam
Certified LabVIEW Developer
Senior Test Engineer
Currently using LV 6.1-LabVIEW 2012, RT8.5
LabVIEW Champion
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