Triggers do not compile (of APEX Advanced Tutorials.pdf)

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• My first ARM VI does not compile

  Hello

  I'm a beginner full and just tried to compile the example VI of the "Getting started with LabVIEW Embedded Module for ARM microcontrollers. I understand not all uVision and correlations LV Embededd ARM and the VI does not compile. Here is my system:

  LabVIEW 8.61f1

  LabVIEW Embedded for ARM 8.6

  Keil uVision 4.13 has

  MCB2378 & ULINK2 purchased through the JTAG Board of NOR

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  I would really appreciate help to overcome this situation, I do not understand so I could continue with the chessboard of ARMS by LV instead of via programming uVision. Examples of uVision compile and work OK, so theere must be a problem between the LV-ARM and the native build tools.

  Thank you in advance,

  OK, solved!

  If there is leftover uVision3 or one simply preses in the dialog asking if upgraded to uVision3 model after the first use of the saved in uVision3 - last project there will be an ongoing problem, as initially indicated.

  Just uninstall the two LV to ARMS 2010 and Keil uVision 4 toolchain and reinstall them - it works OK.

  Best regards

• Changing table - SQL error: ORA-04091: table XYZ is changing, function of triggering/can not see

  Hi all

  I am a newbie to Oracle and I am faced with the above error. Please see the below code snippets. Can someone please tell what I am doing wrong? Thank you in advance.

  Thank you

  CREATE TABLE ABC

  (

  ID VARCHAR2 ENABLE NUMBER NOT NULL,

  FIELD1 ACTIVATE THE NUMBER NOT NULL,

  FIELD2 ACTIVATE THE VARCHAR2 (8 BYTE) NOT NULL,

  CONSTRAINT JOB_PK PRIMARY KEY (ID)

  )

  ;

  CREATE TABLE XYZ

  (

  ACTIVATE THE NUMBER 4 R_ID NOT NULL,.

  ID VARCHAR2 ENABLE NUMBER NOT NULL,

  Column1 NUMBER (2.0) default 0.00,.

  Column2 NUMBER (2.0) default 0.00,.

  COLUMN3 NUMBER (2.0).

  NUMBER (2.0) TOTAL 0.00 default.

  CONSTRAINT TRIP_PAYMENT_PK PRIMARY KEY (ID)

  )

  ;

  create or replace trigger trigger1

  After Insert on XYZ

  for each line

  Declare

  number of newTotal;

  Start

  newTOTAL: =: new. Column1 +: new. Column2 +: new. COLUMN3;

  setting a day of XYZ together Total = newTotal;

  end;

  Insert into ABC (1, 45, ' Demo');

  insertion in XYZ (1, 1, 12.50, 10.20 33,50, ");

  Error report:

  SQL error: ORA-04091: table XYZ is changing, function of triggering/can not see

  Try one before line

  create or replace trigger trigger1

  before inserting on XYZ

  for each line

  Start
  : new. TOTAL: =: new. Column1 +: new. Column2 +: new. COLUMN3;
  end;

• ERROR / T_ITEMS in the TABLE is changing, function of triggering/can not see ORA-06512... ?

  Hi all

  I CREATED THE TRIGGER TO CHECK NOM_ELEMENT BEFORE UPDATE ON THE T_ITEMS TABLE IF AN ANOTHER NOM_ELEMENT LIKE NOM_ELEMENT CURRENT OR NOT, IF AS AN ANOTHER NOM_ELEMENT DON'T SAVE UPDATED CURRENT NOM_ELEMENT.

  MY NO IS:

  1 - I CREATED the FUNCTION CALL CH_UNIQUE_ITEM_NAME

  CREATE OR REPLACE FUNCTION CH_UNIQUE_ITEM_NAME

  (NUMBER OF P_ID, P_ITEM_NAME IN VARCHAR2)

  RETURN NUMBER

  AS

  NUMBER OF X_COUNT;

  -FUNCTION "CH_UNIQUE_ITEM_NAME" TO CHECK NOM_ELEMENT LIKE OTHER NOM_ELEMENT OR NOT.

  BEGIN

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  IN X_COUNT

  OF T_ITEMS

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  AND UPPER (ITEM_NAME) AS UPPER (P_ITEM_NAME);

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  END CH_UNIQUE_ITEM_NAME;

  2. I CREATED TRIGGER CALL TRG_CH_UNIQUE_T_ITEMS

  CREATE OR REPLACE 'TRG_CH_UNIQUE_T_ITEMS' before FIRING

  UPDATE

  ON T_ITEMS FOR EACH LINE

  DECLARE

  NUMBER OF X_CHECK;

  BEGIN

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  IF (: NEW.) NOM_ELEMENT DISLIKES: OLD. Nom_element AND X_CHECK > 0)

  THEN RAISE_APPLICATION_ERROR (-20007, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");

  END IF;

  END;

  NOW WHEN I UPDATE ANY ITEMS FOUND ERROR "ERROR / T_ITEMS in the TABLE is changing, function of triggering/can not see ORA-06512.

  

  Please help me TO RESOLVE THIS ERROR. I TIRED TO SOLVE...

  Thank you

  You don't realize that you have just set a UNIQUE INDEX of several columns?

  create unique index index_name_uq on table_name( user#, upper(item_name) );
  

  In addition, a GUI Design point, (using the terms of the APEX) that you want to validate the data before submit you.

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  MK

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• SSL via CRMI. Oracle has documented RIDC client code is not compiled.

  This part of the oracle documentation does not compile:

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  ?

  
  

  Thanks in advance for your help...

  
  

  Kind regards

  Michael
  

  OK, after that I ask myself the question, I found an answer myself. Sometimes, just to explain the problem to someone else and we'll find a way.

  In the description of the API, there were oracle.stellent.ridc.protocol.intradoc.IntradocClientConfig class

  IntradocClientConfig has requested methods.

  Should work now.

• Table is changing, function of triggering/can not see?

  Hello
  I had this error before, and I solved it with the help of this forum.
  But I didn't ask then why is - this error happening at all?
  Now I have it again, with different trigger:
  
  ORA-04091: table TRACKER. APPLICATIONS is changing, function of triggering/can not see
  
  My trigger code is:

  create or replace trigger "REQUEST_EMAIL_T2"
       after update of assigned_to_assigned_id
       on requests
       referencing new as new old as old
       for each row
  begin
          if :new.assigned_to_assigned_id != :old.assigned_to_assigned_id
       then
        for emp_rec
         in (select      username, assigned_email, form_name
            from      assigned, form_type, requests
               where  assigned.assigned_id = form_type.assigned_id
                    and assigned.assigned_id = :new.assigned_to_assigned_id
                    and requests.request_id = :new.request_id)
                  loop
             apex_mail.send (
                 p_to          => emp_rec.assigned_email,
                 p_from     => emp_rec.upline_email,
                 p_body     => 'You have been assigned a new Request. '
                                  || CHR (10)
                                  || ' Request: '
                                  || :new.request_id
                                  || CHR (10)
                                  || ' Type: '
                                  || emp_rec.form_name
                                  || CHR (10)
                                  || ' Login: '
                                  || emp_rec.username
                                  || CHR (10)
                                  || ' Pass: '
                                  || '******',
                 p_subj     => 'New Request'
            );
       end loop;
  end;
  / 

  The relaxation will compile without error. The error I get trying to update the table!
  
  I absolutely need to define a trigger as "after" update and need to know how to avoid the same mistake again?
  
  Thank you!

  But I didn't ask then why is - this error happening at all?

  Have you looked at the error message? It is very explicit:
  >
  ORA-04091: table String is changing, the function of triggering/can not see
  Cause: A trigger (or a plsql function defined by the user referenced in this statement) attempted to watch (or modify) a table that stood in the middle of being modified by the statement that shot.
  Action: Rewrite the trigger (or function) so it does not read this table.
  >

  Should this request to join the table of queries ? Does not look like it...

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• Trigger that avoids "is changing, function of triggering/can not see ' error

  Version Oracle 11.2.0.2

  I have a problem where I try to avoid duplicates in a table using a trigger.  Data looks like:

  EQUIP LO ACCT

  ---------- -- ----

  1000000000 0

  1000000001 0

  1000000002 0

  1000000003 0

  1000000004 0

  Equipment = equipment identifier

  Location = location number

  Acct = account associated with the equipment

  I need avoid the same account to have 2 pieces of equipment are allocated to the same location.

  for example

  EQUIP LO ACCT

  ---------- -- ----

  1000000000 1 1234

  1000000001 1 1234

  1000000002 0

  1000000003 0

  1000000004 0

  I can't create a unique index for this table that when there is no assigned equipment (first example) I couldn't have uniqueness through the location and number.  So, I wrote the following:

  CREATE or REPLACE TRIGGER TEST_TRG before update of test WE acct

  Old SEO AS OLD AS new NEW

  for EACH LINE

  DECLARE

  v_chk number: = 0;

  BEGIN

  Select count (*) in the test v_chk where acct =:new.acct and rental =:new.location;

  IF v_chk > 0 then raise_application_error ("-20001, ' multiple devices at the same location not allowed");

  END IF;

  END;

  /

  .. but of course that I'm shot in the table that is being updated, I get the error of mutation:

  setting a day of test set acct = "1234", location = '1' where equip = '1000000001'

  *

  ERROR on line 1:

  ORA-04091: table xxx. TEST is changing, function of triggering/can not see

  ORA-06512: in "xxx. TEST_TRG', line 4

  ORA-04088: error during execution of trigger ' xxx. TEST_TRG'

  I tried this split into two pieces where a trigger calls another procedure to perform the check and write error, but results were inconsistent and end-user demand does not pick up the error for a reason - it seems to process the transaction very well even if the update was not made at the table level.

  Are there other ways in addition to a trigger to achieve?

  Thank you!

  Adam

  Monty77 wrote:

  ... I can't do this, acct is not a null value, it is ' '.  Right or wrong it is not editable as integrated in application logic.

  Thank you!

  Adam

  Then also consider this value in your index of function according to:

  create table test

  (

  equip the varchar2 (10),

  location varchar2 (2),

  ACCT varchar2 (4)

  );

  CREATE a UNIQUE INDEX TestLocationAcct_UK ON Test

  (case when the ACCT is not null ACCT AND! =' ' then location |) « ; » || end of the ACCT);

  Insert test values ('1000000000 ', ' 0',' ');

  Insert test values ('1000000001 ', ' 0',' ');

  Insert test values ('1000000002 ', ' 0',' ');

  Insert test values ('1000000003 ', ' 0',' ');

  Insert test values ('1000000004 ', ' 0',' ');

  Update test set acct = "1234", location = '1' where equip is '1000000000';.

  Update test set acct = "1234", location = '1' where equip is '1000000001';.

  Error on line 1

  ORA-00001: unique constraint (SYSADM. TESTLOCATIONACCT_UK) violated

  Kind regards.

  Al

  Name of the index has changed to testlocationacct