Updating a table on button press

Hello,
I am trying to make a simple APEX function that allows the user to click a button on the page which corresponds to a team. I am using page processes once the button is pressed to increment the points value for the specific team by 1. An example of one of the processes is:
UPDATE teams
SET number_of_points = number_of_points + 1
WHERE team_colour = 'Blue';
This piece of SQL is executed on the page submit and when the button is pressed.
Unfortunately, no matter which button is pressed, all of the page processes are fired and all teams gain when point. How can I make it possible for the process to only effect the team for which the button corresponds to.
Thank you so much!

you wrote different process for different actions right?
and you wrote
The problem is still occurring. I'm no sure why though. I could only assume it was because in image one the trigger is set to fire on submit. Should I stop the buttons from having 'Go' in the field that controls the button actions?
please give full information or create a sample application in apex.oracle.com/pls/apex then will see,
Regards,
Pavan

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Update command in When-button-pressed.

Hello OTN members,
I have the following situation :
Take an eg.
There are two forms, the first form takes the fiedls such as EMP
NAME, ADDRESS AND DEPT. This record generates a Empid from the
sequence.
The second form selects the empid from the LOV, and other fields
such as Emp Salary, Commission and Bonus Rate(from the same
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I tried as below in when_button_pressed trigger::
UPDATE EMP SET SALARY = :EMP_BLOCK.SALARY,
COMMISSION = :EMP_BLOCK.COMMISSION etc
where
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The above statement does not update the record in the table.
If there is any other approach for the above please suggest.
Thanks in advance.
Sailesh.
null

Hallo,
you can check the number of updated row with the system variable
SQL%ROWCOUNT. So if your where condition doesnt match any rows,
no rows will be updated and also no error message will be
generated. In this case SQL%ROWCOUNT contains 0 after the update
command.
other idea: make surte to commit your changes before querying
the record from another sessuion!
Sailesh (guest) wrote:
: Hello OTN members,
: I have the following situation :
: Take an eg.
: There are two forms, the first form takes the fiedls such as
EMP
: NAME, ADDRESS AND DEPT. This record generates a Empid from the
: sequence.
: The second form selects the empid from the LOV, and other
fields
: such as Emp Salary, Commission and Bonus Rate(from the same
: table) are entered. When a Button is pressed, it should update
: the record with the above values where empid in the table is
: equal to the empid in this forms first field.
: I tried as below in when_button_pressed trigger::
: UPDATE EMP SET SALARY = :EMP_BLOCK.SALARY,
: COMMISSION = :EMP_BLOCK.COMMISSION etc
: where
: EMPID = :EMP_BLOCK.EMPID;
: The above statement does not update the record in the table.
: If there is any other approach for the above please suggest.
: Thanks in advance.
: Sailesh.
null

Updating a column when button pressed

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pw        VARCHAR2(30);
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How to create a Maintenance view in order to update 4 tables

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Hi.
i am working on HR system. I have developed a form of report engine. Report Engine form contains no any database table but text items, buttons and options.
I have placed a button and in its when button press triger i wrote a procedure to update a table record as:
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I will help u in this scenario.
1st tell me the update column is a database item or not ?
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begin
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Need a pattern to update a table's contents

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more details:
1. the import is fired off via a button press.
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Quite an interesting little problem....
I have created a simple test case to illustrate your scenario - perhaps Steve M could comment...
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Urgent : update of table QALS through transaction QA12 after save

Hello Experts ,
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When the SAVE button is pressed, SAP execute some checks and launch the update task, if you want that your changes are not overwritten by SAP you need to submit those for execution during update task.
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FRM-40735 WHEN BUTTON PRESSED TRIGGERRAISED UNHANDLED EXCEPTION ORA-01407

WHILE I AM TRYING TO UPDATE A TABLE LIKE:
update mis_dik_adeia
set trexon_etos_days = (select days_per_year
from mis_dik_adeia, mis_plafon_adeivn
where mis_dik_adeia.adeia_id = mis_plafon_adeivn.adeia_id
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FRM-40735 WHEN BUTTON PRESSED TRIGGERRAISED UNHANDLED EXCEPTION ORA-01407

there are two categories of errors: compile-errors and runtime-errors.
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try it
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Update multi tables in one page

I need to create a page that allow users to update ( no insert, no delete) 2 tables 1 view.
home page users enter a record_no, then I pass the rec_no to p2 which has 3 regions. Each region points to one table\view respectively. All tables\view are linked by a same rec_no. Each region has a form on table with buttons: cancel,save.
This works fine with only one region but When I start putting 2nd region,
following issues arise
1. data only display on most recently added region( form), it won't display on both regions
2. when I click apply changes (save) on region 1, it erros on both regions that have not null columns. I think this is because it can't tell the difference on the button that I press.
Is it possible to achieve this goal: update multiple tables in one page ? What is the best way to do it ?
I don't want to use form with a report because it has extra page to go through.Ultimate goal is to make all regions Hide and show, so data won't clog whole screen if user has no need to see all at once. Is creating a view of these 3 tables\view the way to go ?
Can you help ? My brain is fried now.
Thanks.
Tai

Hello Tai,
I understand your frustration. Sometimes, something that should seem easy turns out to be so difficult. In this case, what you can do is this:
1. Get rid of the buttons in the second and third region. You can drive your updates all from only one set of buttons.
2. Set a condition on your update button that it only do the update if all three regions data have been filled in - that is - the fields you need are NOT NULL.
Sometimes, I have actually created a separate region called "Buttons" and that is all that resides there. When I have multiple regions on a screen that need input, I won't do any of the updates until all areas have been populated.
As for hiding/displaying the various regions based on your user's need to see them, you can also set conditional display on the region so the user won't see them if they don't need to.. And/or use the hide/show region template.
I hope this helps,
Don.
You can reward this reply by marking it as either Helpful or Correct :)

Change control values on button press

Hi, I've got a situation where I have several numeric controls where you can change different values. I also have several subVIs with control references (as described in this article: http://labviewwiki.org/Control_References) that takes in references to these numeric controls on the mainVI. These subVIs continously read the values in their own threads.
So whenever I change a value on any of the controls, the values does of course change in the subVIs, since they reference to the value of the control. How would I make the actual value only change only after I clicked the ok button?
To illustrate this I made a VI with an event structure and a separate while loop that continoulsy reads a reference to the control and updats an indicator. I can think of a few cumbersome solutions, whereas I have two controls for every value. The second control would then be hidden and only written to in case of the Ok button press. But having two controls to do something simple as this seems superfluous.
Message Edited by Siniz on 10-20-2009 10:36 AM
Solved!
Go to Solution.
Attachments:
ValueChangeOnButtonPress.vi ‏19 KB

Given what you want to do then I would suggest that you use an Action Engine to contain your data. This has the advantage of decoupling the UI from the subtasks. I would recommend that your action engine consist of an array of clusters. Each cluster would contain the data values, in your case Ki, Kd and Kp for each controller. This has the advantage of reducing the individual values you are dealing with and treats the data for a given controller as a whole. The subtasks could either poll the data looking for a value change. You could even keep track of that in your Action Engine so you would only need to poll to see if the data changed. If it did, then read the data. You would need an index or ID to specify which controller's data you would want to access. The action engine allows you to grow your application if more controllers are added. You should use a typedef to define the cluster. If you wanted to make this more event driven you could use a single notifier shared by your subtasks that would simply indicate a data change event. Part of the data for the notifier could specify which data. That way only interested subtasks would take action. This type of architecture wouldn't add lots of wires to your diagram especially if you used a named notifier.
Regardless of the way you choose to pass the data to the subtasks I would take a look at your UI. I haven't seen it so I can't comment on it specifically. However is you have 40 controls on the front panel at the same time it most likely is a confusing interface. There are ways to reduce the complexity and still provide the same functionality. If you haven't already looked at I would recommend getting the book The LabVIEW Style Book by Peter Blume. If you did reduce your UI to only work with a single controller or a couple of related controllers at a time the Action Engine approach would work nicely since you take your data from the FP and only update the data that has changed. From a UI perspective you have less controls to worry about on your UI and it will probably be easier for the user to understand. From the application's perspective you have decoupled the subtasks from the UI in a very clean way. Another approach would be to use LVOOP for your controller data and processing. Then you simply instantiate a new instance of the class (an object) for each controller that your system is using. This has an added benefit of allowing you to use different controllers and load them at runtime using dynamic dispatching.
PS You are good for the overall Kudo count. Thanks.
Message Edited by Mark Yedinak on 10-20-2009 12:33 PM
Mark Yedinak
"Does anyone know where the love of God goes when the waves turn the minutes to hours?"
Wreck of the Edmund Fitzgerald - Gordon Lightfoot

Updating a table on button press

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