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Global variable in form
hi how can i reset global variable in oracle form 11g i have the following block IN MY when-new-form-instance
:block_home.enter_employee_id := substr(:global.ent_empid,1,4)||' - '||substr(:global.ent_ent_empid,5,2)||' - '||substr(:global.ent_empid,7,3)||' - '||substr(:global.ent_empid,10,4);
:BLOCK_HOME.CURR_employee_id :=substr(:global.uni_empid,1,4)||' - '||substr(:global.uni_empid,1,2)||' - '||substr(:global.uni_empid,3,3)||' - '||substr(:global.uni_empid,6,4);
Declare
Cursor C_jobs
is
Select employee_id, start_date, end_date,
job_id, department_id
from hr.job_history
where employee_id = substr(:global.uni_empid,5,9); --am geting value as -18-047-6 instead of 5320180476694 how can i resert :BLOCK_HOME.CURR_employee_id
begin
go_block('job_history');
-- first clear the block if it contains any records
clear_block(no_validate);
-- move control to first record;
first_record;
for cur in C_jobs loop
:job_history.employee_id := cur.employee_id;
:job_history.start_date := cur.start_date;
:job_history.end_date := cur.end_date;
:job_history.job_id := cur.job_id;
:job_history.department_id := cur.department_id;
-- move control to next record;
next_record;
end loop;
-- again after completion move control to first record
first_record;
end;
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I'm looking over you trigger some more now, and I'm wondering why you need this trigger? Why not base this form block on the hr.job_history table? Then your trigger could simply be:
begin
go_block('job_history');
execute_query;
end;
begin
go_block('job_history');
execute_query;
end;
If you want that query limited to a particular value from a :global variable, that is possible. One way to do this is to add a non-database, control record to your form. This block does not need any items that the user can see or interact with directly. Your when-new-form-instance trigger should extract the value that you want from the global variable, and store that in a an item in your control block. You can add a pre-query trigger in your job_history block to copy this value into the appropriate item in the job_history block. And, use a post-query trigger to clear the value from the control block item, it that is non-blank. This will allow users of the screen to query other records after the initial query , if they want to.
hi this is what i need check atachment
https://drive.google.com/open?id=0B3dKl5pXBYMqa3ZMUXVHdTd0cDg
GLOBAL.jpg
https://drive.google.com/open?id=0B3dKl5pXBYMqa3ZMUXVHdTd0cDg
GLOBAL.jpg
this what i need the global value to be
when i press the button
declare
cursor upd_global is
select empid from employee
where cii.sin = bii.sin
where emcode||serial||empnumber = regexp_replace(:block.item
begin
open upd_global;
fetch upd_global into :global.use_empid;
close upd_global;
end;
when i press the button
declare
cursor upd_global is
select empid from employee
where cii.sin = bii.sin
where emcode||serial||empnumber = regexp_replace(:block.item
begin
open upd_global;
fetch upd_global into :global.use_empid;
close upd_global;
end;
"when i press the button"
Which button? I'm guessing you want a "when-button-pressed" trigger to have this logic, but I don't know which button you want this logic associated with.
Also, this looks like a syntax error in your trigger code:
cursor upd_global is
select empid from employee
where cii.sin = bii.sin
where emcode||serial||empnumber
The "where emcode" on the last line here looks incorrect. I thank that needs to be "and emcode", not "where emcode".
Which button? I'm guessing you want a "when-button-pressed" trigger to have this logic, but I don't know which button you want this logic associated with.
Also, this looks like a syntax error in your trigger code:
cursor upd_global is
select empid from employee
where cii.sin = bii.sin
where emcode||serial||empnumber
The "where emcode" on the last line here looks incorrect. I thank that needs to be "and emcode", not "where emcode".
Which trigger in which form do you want this logic in? And, why do you want to save this value to a global variable? If you want to call a second form from a form the user is in *AND* you want to automatically query a record in the second form based on a value from the first form, then you could use a global variable to hold the value from the first form, so a when-new-form-instance trigger, and/or a pre-query trigger in the second form can retrieve the value from the global variable and automatically query a record (or records) based on this value.
But, if you just have multiple blocks (with or without multiple tab pages) in a single form, you don't need a global variable at all.
But, if you just have multiple blocks (with or without multiple tab pages) in a single form, you don't need a global variable at all.
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2. What value do you want it reset to?
3. Exactly when (before, in, after, etc.) your when-new-form-instance trigger do you want it to be reset?
In Oracle Forms, global variables are usually used to pass values from form-to-form. They should not be used for values that are only needed with a single form.
The syntax to assign a value to a global variable is the standard PL\SQL assignment statement, like this:
:global.my_variable := [something];