Workaround for select queries on table that is being modified by trigger?

Hi,
suppose I have a table orderitems, to store which products a customer has ordered. Orderitems has a referential key to the product table.
Furthermore, there's a relationship between products. If you order some products, you'll get some other product for free. For example, if you order product A, you get B for free.
So in the 'before insert' trigger of orderitem, I check if I'm inserting an A, and if so, insert a B as well.
So far, so good. But now I want to check if a B is not already present in the order, for there may be only one B in each order.
So in the 'before insert' trigger of orderitem, I want to query orderitem to see if there's already a B present.
Oracle does not allow me to do this (table that's being modified may not be queried). How can I workaround this problem?
I definitely need to do this in a trigger, since I don't want to rely on the applications for handling this. It should be transparantly handled by the db.
Ideas?
Greetings,
Ivo

Here solution for Mutating Error:
create or replace package state_pkg
as
type ridArray is table of rowid index by binary_integer;
newRows ridArray;
empty ridArray;
end
create or replace trigger parent_bi
before insert or update on parent
begin
state_pkg.newRows := state_pkg.empty;
end
create or replace trigger parent_aifer
after insert or update of status on parent for each row
begin
state_pkg.newRows( state_pkg.newRows.count+1 ) := :new.rowid;
end
create or replace trigger parent_ai
after insert or update of status on parent
begin
for i in 1 .. state_pkg.newRows.count loop
insert into log_table
select theKey, status, effDate
from parent where rowid = state_pkg.newRows(i);
end loop;
end
Hope it will help you.
Riaz

Similar Messages

Dynamic select / function module for select queries

Hello experts,
Is there any function module to build dynamic select queries and also to build standard select queries .
Thanks,
krishnakumar

What are you meaning by 'to build' ???
BR, JAcek
Message was edited by: Jacek Slowikowski

Pages '09: Can't use AppleScript for selected text inside tables?

When I run get selection on selected text in a Pages document, I get something like this:
<pre>text from character 1 to character 4 of body text of document id 9943974 of application "Pages"</pre>
When I run get selection on selected text inside a table cell in a table in a Pages document, I get something like this:
<pre>text from character 1 to character 4 of some table of document id 3539679 of application "Pages"</pre>
When I run get selection on selected text inside a table cell in ANOTHER table in the same Pages document, I get the exact same thing. It still says "some" table. So there is no way to distinguish between tables if there are more than one table in the same Pages document.
Am I correct in understanding that this means that most AppleScript commands for manipulating text are unusable inside table cells?
For example, it seems impossible to get the properties of the selection when the selection is selected text inside "some" table. So it's impossible do anything about text styles, etc.
Is AppleScript support in Pages ’09 really that limited, or am I missing something?

The first script below should return the character style of any selection made in Pages ’09, whereas the second script should apply the "XXX" character style to any selection:
--BEGINNING OF SCRIPT 1
tell application "Pages"
activate
tell application "System Events" to tell process "Pages"
-- Show the format bar:
if not (pop up button 1 of window 1 exists) then
click menu item "Show Format Bar" of menu 1 of menu bar item "View" of menu bar 1
end if
-- Show the styles drawer and character styles:
if menu item "Show Styles Drawer" of menu 1 of menu bar item "View" of menu bar 1 exists then
keystroke "t" using {shift down, command down}
end if
tell front window
tell checkbox 1 of group 1 of drawer 1 -- “Show or hide character styles.” checkbox
repeat until it exists
delay 0.1 -- wait until the styles drawer is open
end repeat
if description is "show character style" then click
end tell
-- Get the row index (although it is not a property) of the character style:
tell menu button 2 -- “Choose a character style.” menu button
click
set k to 0
repeat
set k to k + 1
if value of attribute "AXMenuItemMarkChar" of menu item k of menu 1 exists then exit repeat
end repeat
keystroke return -- hide the menu
end tell
-- Get the character style name:
if k > 1 then set k to k + 1
value of static text 1 of row k of outline 1 of scroll area 2 of splitter group 1 of group 1 of drawer 1
end tell
end tell
end tell
--END OF SCRIPT 1
--BEGINNING OF SCRIPT 2
set myStyle to "XXX" -- the name of the character style you want to apply
tell application "Pages"
activate
tell application "System Events" to tell process "Pages"
-- Show the format bar:
if not (pop up button 1 of window 1 exists) then
click menu item "Show Format Bar" of menu 1 of menu bar item "View" of menu bar 1
end if
-- Show the styles drawer and character styles:
if menu item "Show Styles Drawer" of menu 1 of menu bar item "View" of menu bar 1 exists then
keystroke "t" using {shift down, command down}
end if
tell front window
tell checkbox 1 of group 1 of drawer 1 -- “Show or hide character styles.” checkbox
repeat until it exists
delay 0.1 -- wait until the styles drawer is open
end repeat
if description is "show character style" then click
end tell
set characterStyles to value of static text 1 of rows of outline 1 of scroll area 2 of splitter group 1 of group 1 of drawer 1
set k to 0
repeat with thisStyle in the characterStyles
set k to k + 1
if thisStyle as text is myStyle then exit repeat
end repeat
-- Apply the character style:
if k > 1 then set k to k - 1
click menu button 2 -- “Choose a character style.” menu button
click menu item k of menu 1 of menu button 2
end tell
end tell
end tell
--END OF SCRIPT 2
I suppose that +paragraph styles+ should work the same.
I'm beginning to know Pages ’09 a little better now.
Message was edited by: Pierre L. (show format bar)

Alternative For Select Queries

H All,
Is there a way to extract sales doc. number of corresponding billing doc. number with out using select query in a report?

Ravi,
Is there a way to extract sales doc. number of corresponding billing doc. number with out using select query in a report?
I want to take shower without getting Wet?
Try with BAPI_SALESORDER_GETDETAILBOS,and see the details from BAPISDFLOW structure.
Amit.

Open sys_refcursor for select from table variable?

Hi,
I've got a challenge for you! :-)
I've got a procedure that has a lot of logic to determine what data should be loaded into a table variable. Because of various application constraints, i can not create a global temporary table. Instead, i'd like to create a table variable and populate it with stuff as i go through the procedure.
The end result of the procedure is that i must be able to pass the results back as a sys_refcursor. This is a requirement that is beyond my control as well.
Is there a way to make this sort of procedure work?
Create Or Replace Procedure Xtst
Mu_Cur In Out Sys_Refcursor
Is
Type Xdmlrectype Is Record (Col1 Varchar2(66));
Type Xdmltype Is Table Of Xdmlrectype;
Rtn Xdmltype;
Begin
Select Internal_Id Bulk Collect Into Rtn From Zc_State;
open mu_cur for select col1 from table(rtn);
end;
11/42 PLS-00642: local collection types not allowed in SQL statements
11/36 PL/SQL: ORA-22905: cannot access rows from a non-nested table item
11/19 PL/SQL: SQL Statement ignored
Show Errors;

Not anything i'd want to personally implement.
But for educational purposes only of course....
create table this_will_be_gross
   column1 number,
   column2 varchar2(30)
insert into this_will_be_gross values (1, 'begin the ugliness');
insert into this_will_be_gross values (2, 'end the ugliness');
variable x refcursor;
ME_XE?
declare
   Rtn sys.ODCIVARCHAR2LIST;
BEGIN
   SELECT
      column1 || '-' || column2 Bulk Collect
   INTO
      Rtn
   FROM
      this_will_be_gross;
   OPEN :x FOR
   SELECT
      regexp_substr (column_value, '[^-]+', 1, 1) as column1,
      regexp_substr (column_value, '[^-]+', 1, 2) as column2
   FROM TABLE(CAST(rtn AS sys.ODCIVARCHAR2LIST));
end;
17 /
PL/SQL procedure successfully completed.
Elapsed: 00:00:00.09
ME_XE?
ME_XE?print :x
COLUMN1                        COLUMN2
1                              begin the ugliness
2                              end the ugliness
2 rows selected.
Elapsed: 00:00:00.11In the above example i 'knew' that a hypen was a safe character to use to break up my data elements (as it would not be found anywhere in the data itself).
I would strongly encourage you not to implement something like this. I realize it's tempting when you are working in strict environments where it can take a serious battle to get structures like temporary tables or SQL Types created, but that's really the proper approach to be taking.

Table list for select statment

hello all,
I been trying to setup a plsql statment to run a select statment from tables that are in a list.
this is what I have done so far as a test and it is not letting me do it and I don't know why can anyone point me in the right direction.
declare
cursor main_log is
select *
from joseph_w.table_name_list;
cml main_log%rowtype;
var1 varchar2(35);
var2 varchar2(35;
begin
open main_log;
fetch main_log into cml;
var1 := cml.schema_name;
var2 := cml.table_name;
select *
from var1.var2;
close main_log;
end;
thanks

In PL/SQL you cannot just "select", as PL/SQL is a server sided language. You must use a record or variable to hold the selected data. Anyway, for selecting from different tables dynamically, you can use (Native) Dynamic SQL or Ref Cursors. Take a look at the documentation, especially the "PL/SQL User's Guide and Reference":
http://www.oracle.com/pls/db102/portal.portal_db?selected=1
Regards,
Gerd

PLSQL - Creating a cursor for a table that does not exist

I am writing my first PLSQL program, and I have run into a problem creating a cursor.
I have a cursor that accesses a table on another database via a database link. The database link does not yet exist, so the first thing that my PLSQL does is create the database link. The problem is that I have to define my cursor before I have executed the code for the database link, and the compiler gives me an error for referring to a table that does not yet exist. How can I get around this?
Here is the basic structure of my program
DECLARE
--cursor defined here
BEGIN
--code creates database link if it does not yet exist
--code executes cursor
END

I'm still not sure I understand why the database link can't be created in advance... Once you run your code once, the database link is going to exist permanently. Why not just create it at compile time like every other object in your application?
It's sort of like trying to create a table at runtime-- if you do that, you can't refer to that table in static SQL later on. You can do everything with dynamic SQL, but that's going to substantially increase the complexity of your code.
Additionally, you have to have the CREATE DATABASE LINK privilege granted directly to the user running your code, not through a role, which seems like a huge security hole.
Justin

Selecting from two tables and confirming from them despites they not relate

Please I need a query to select from two tables that are not related to each other.
I also want to confirm data's as in verify wether what the user has entered is in accordance with what is in the tables
Examples
the first table is named "Card" and the second table is named "Student_Details"
Card table contains a column named "Pin_Number".
The Student_Details table contains fields such as Exam_Number, Name, Age, Sex.
The user has to Enter the Pin_Number which has to be confirmed in the Card table and Exam_Number which has to be confirmed in the Student_Details table and verify that both data's are correct.
Please I need the SQL and PL/SQL queries for this problem.
Thanks

Hi,
I think you need two different queries
You can write a procedure like:
create or replace procedure p1 (p_pin_number number, p_exam_number)
is
r_card_row            card%rowtype;
r_student_details     student_details%rowtype;
cursor c1 is
select *
    from card
   where pin_number = p_pin_number;
cursor c2 is
select *
    from student_details
   where exam_number = p_exam_number;
begin
open c1;
    loop
      fetch c1 into r_card_row;
      exit when c1%notfound;
      .... do whatever you want..... and the samething you can do with other cursor
    end loop;
close c1;
end p1;Hope this helps
Ghulam

Selecting from one table and Update another in the same Page

Could someone help me with this HTMLDB task. In my page design, I am selecting data from two tables (masters: DEPT, EMP) which I want to display on the left column of the page and at the same time a user would be able to update another table (ATTENDANCE:with many children) which would have a radiogroup on the right side for each value of the master such as employee name. The placement of data has to appear in corresponding rows on the page. For instance, employee names of the master table must appear on the same row with its corresponding child value. The page would be grouped by DEPT_NO. The user would click on the department name, a new page with the employee name would apprar. From that page, the user would then update attendance column for each employee in that department. In this operation, it is only the ATTENDANCE table that is being updated. I can send out more information about the structure of the tables if you need more information. I tried many HTMLDB options, forms, reports, etc. I have not been able to get quite right. Your help will be appreciated.

Raju,
Thanks for responding to my problem. I have actually tried using the example on how-to you sent me a link to but it did not help as I expected. You see, the page would be updated every meeting date for each employee. I can send you more information about the table structure if you like. However, let me see if this will help you a bit.
Tables are: 1) Dept [dept_no (pk),dept_name] 2) EMP [emp_no (pk),emp_name, dept_no(fk)] 3) Meetings [meet_key(pk),attended, meeting_date, emp_no(fk)]
What I want to do is create two pages, one would list the departments, when a user selects a department, the user would be linked to a meeting attandance page. The meeting attendance page would list department name once, Meeting date once, and then list employees in that department. At the right column of every employee would be a checkbox for meeting.attended for update. The meeting_date would be pre-populated so that what the user would do is just check Yes/NO. The second page is the one I'm having the most problem with.
If I can do a fetch from dept, emp, and meetings and then do an update on the Meetings table on the same page, I think that might solve the problem. That was how I solved it in MS Access three years ago.
Here is email address in case you want to contact me directly. [email protected]
Thanks again for your help.

Select from multiple tables without join statement

Hey Gurus,
I would like to make a select from a multiple tables to check if there is any reference to my data. I would like to do it with some elegancy, but I don't know how.
Is in abap sql possible to do it only with the select statement?
Or I was also think about a solution that I should fill some data structure with all of the tables which I want to select from and then just loop that data structure and do the select seperately from all of the tables. I just need to check if it founds some results, so no need to store it. If this solution would be fine what data structure should I use?
Or can tell me what would be the best for this?
My code for select from one table, which I want to make for multiple tables:
SELECT SINGLE id_kniznice FROM zbr_t_autori INTO wa_id
       WHERE id_kniznice EQ ls_extract-zview-id_kniznice.
     IF sy-dbcnt > 0.
       MESSAGE i000(zbr_msgc_lib).
       ls_extract-flags-vim_mark = '*'.
       MODIFY extract FROM ls_extract.
ENDIF.
Thank you for any posts.
Regards,
Robert

And there we go again...
Read this topic:
For All Entries is NOT better than INNER JOIN in most cases
And this one:
inner join vs for all entries
Also that one:
Re: LOOP AT vs INNER JOIN
JOINs are really better than for all entries in most cases. Problem is people tend to ignore basic things like using pks or indexes while making them.

Dynamic SQL select from unknown table until runtime

I need to do a select from a table that is unknown until runtime. Is there any good examples of this. The Store Procedure will take in the table name and return a row.
I am not using inline SQL because there is a lot more complexity involved . What I need to do is understand how to reference this unknown table.
Here is an example of what I have written so far.
PACKAGE pk_LoadNativeDataItems IS
PROCEDURE version;
TYPE RowDataCur IS REF CURSOR;
PROCEDURE pr_LoadNativeDataItems(p_flag IN NUMBER
p_how_many_rows_to_fetch IN NUMBER,
p_row_data OUT RowDataCur);
PROCEDURE pr_LoadNativeDataItems(p_flag IN NUMBER
p_how_many_rows_to_fetch IN NUMBER,
p_table_name IN VARCHAR,
p_row_data OUT RowDataCur) IS
BEGIN
OPEN p_row_data FOR
SELECT * from ||p_table_name||;
END pr_LoadNativeDataItems;
END pk_LoadNativeDataItems;
Thanks for any help
Tony

Here is example for similar question:
Using variables for tables and columns

Selecting row from table

hi
i want select rows in table,that mean i have to put radio button in front of each row in table when i select that radio button and click the go button i should able to edit that row.
please help me to devloped above functionality.
Thanks in Advanced

It would help if you tell us your jdev version and full use case.
Why do you want to use a radio button in front of a row to just edit the row?
In 11g you can select a row and edit it directly (clickToEdit mode), or hit a button on the selected row and open a form to edit the selected row.
@Abhijit you should mention that the sample is for 10g. If the OP uses 11g this confuses matters.
Timo

Select from 2 tables and insert same data into 2 other tables(BPEL Process)

Hi All,
Please suggest me how to select from 2 tables and insert the same data into 2 tables. I am successful in selecting data from 2 tables, but i am not able to insert the same data into 2 other tables. There is foreign key constraint between 2 tables.
Thanks in Advance,
MAH

I have created DB Adapter for selecting from 2 tables and also DB adapter for insert and i have created parent child relationship between 2 tables.
I am getting this error
<Faulthttp://schemas.xmlsoap.org/soap/envelope/>
<faultcode>env:Server</faultcode>
<faultstring>com.oracle.bpel.client.delivery.ReceiveTimeOutException: Waiting for response has timed out. The conversation id is 6f3fe20c1b031057:-6cc7dfb5:11b8bf5fbe1:-7fa4. Please check the process instance for detail.</faultstring>
</Fault>

Is there a way to find the temporary table that are created or read during?

Hi All,
I'm working on performance optimization where I have to find the temporary tablespaces that are created or read during runtime? Is there any way to find it?
Can you please also tell me how the temporary tables are created? And after each run time whether the data is getting deleted or the whole table is getting deleted?
Whether these tables are created only during runtime? What are the naming conventions for all the temporary tables that are created?
Is the table creation has anything to do with Delta or Full load?
Regards,
Kartik

Stephen Tyler Bloom wrote:
When they come out with the next garageband, they should add that feature .
be sure to let Apple know:
http://www.bulletsandbones.com/GB/GBFAQ.html#sendfeedback
(Let the page FULLY load. The link to your answer is at the top of your screen)

My table of contents does not use the entry style I select for words in the paragraph that have character styles applied to them in the chapter, so some of the letters are showing up as green, which is fine in the chapter but not in the TOC.

My table of contents does not use the entry style I select for words in the paragraph that have character styles applied to them in the chapter, so some of the letters, specifically parameters, are showing up green, which is fine in the chapter but not in the TOC. I can manually fix this in the TOC by changing the character style to none after the toc has been generated, but I don't want to do this.

What application are you running? Please ask this in the forum of the product you're using.

Workaround for select queries on table that is being modified by trigger?

Similar Messages

Maybe you are looking for