ORA-04091: table that postal_address is changing, function of triggering/can not see

Similar Questions

• 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

• 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

  SELECT COUNT (ITEM_NAME)

  IN X_COUNT

  OF T_ITEMS

  WHERE ID! P_ID =

  AND UPPER (ITEM_NAME) AS UPPER (P_ITEM_NAME);

  RETURN X_COUNT;

  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

  SELECT CH_UNIQUE_ITEM_NAME (: OLD.ID,: NEW.) NOM_ELEMENT) IN DOUBLE X_CHECK;

  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.

  (use a Page-level Validation)

  MK

• 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...

• Trigger - "Trigger is undergoing change, function of triggering/can not see.

  Hi all
  
  This is the first time I work with triggers. I have a question, because I don't understand how it works.
  

  create or replace trigger ctai_delivery
    after insert on delivery   
    for each row
  begin
    if :new.delivery_status_code is null then
      update delivery d
      set d.delivery_status_code = 'LEV'
      where d.delivery_number = :new.delivery_number;
    end if;
  end ctai_delivery;

  This trigger must run after an insertion. It will need to check if the inserted row delivery_status_code is not null, if it is, then fill it with 'LEVl.
  
  I read that you are not allowed to change the values of: news and: old. So, how can I change the value of delivery_status_code?
  
  Kind regards
  
  Metro

  SQL> create table delivery
    2  (delivery_status_code varchar2(3));
  
  Table created.
  
  SQL> create or replace trigger trig_delivery
    2  before insert on delivery
    3  begin
    4   :new.delivery_status_code := nvl(:new.delivery_status_code,'LEV');
    5  end;
    6  /
  create or replace trigger trig_delivery
                            *
  ERROR at line 1:
  ORA-04082: NEW or OLD references not allowed in table level triggers
  
  SQL> create or replace trigger trig_delivery
    2  before insert on delivery
    3  for each row ----<<<<<<<------
    4   begin
    5    :new.delivery_status_code := nvl(:new.delivery_status_code,'LEV');
    6   end;
    7   /
  
  Trigger created.
  
  SQL> 
  

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  Here's what I see when I go on my account. You will have to update my card because my membership is suspended and I have urgent work to do.

  Please help as soon as POSSIBLE.

  

  Hi Aniket,

  Refer to this to renew your membership:

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  Concerning

  Megha Rawat

• How to troubleshoot the ora-04091: table of mutation

  Hi all
  
  Oracle version: 10g express.
  
  case study: a class has many students, that a student has rewards.
  
  original design:

  drop table student;
  drop table class;
  
  create table class(
  clsid varchar2(9) primary key);
  
  create table student(
  stuid varchar2(9) primary key,
  clsid varchar2(9) not null references class(clsid) on delete cascade,
  reward varchar2(9));

  sample data:

  insert into class values('cls1');
  insert into student values('stu1','cls1','yes');

  issues related to the:
  1. If I want to

   insert into student values('stu2','cls1','yes'); 

  I can put a trigger on student to check if he has that one student in class reward. This trigger must tell me error: I can not leave 'stu2' a 'Yes' on the column of the reward. But he'll lead us Oracle error: ora-04091: table of mutation. He seems to use 'after' or 'instead of' trigger can solve this problem, then how?
  
  2. Another way to ensure that a student in a class reward, is to change the design as:

  drop table student;
  drop table class;
  
  create table class(
  clsid varchar2(9) primary key,
  reward_stuid varchar2(9));
  
  create table student(
  stuid varchar2(9) primary key,
  clsid varchar2(9) not null references class(cid) on delete cascade);

  But the question of these two tables has one foreign key to the other, is it good design?
  
  Thank you.
  
  Published by: 991096 on April 11, 2013 04:56

  Do not use a trigger for this. This is the logic that you should include in your application as a 'check' pre before even attempting insert, or...
  You use an INSERT... SELECT... statement that incorporates the audit as part of it, so the line will be inserted only if the proper test is satisfied.

  for example

  insert into student (stuid, clsid, reward)
  select 'stu2', 'cls1', 'yes'
  from   dual left outer join student s2 on (s2.clsid = 'cls1' and s2.reward = 'yes')
  where  s2.stuid is null; -- only insert if no other student is found in same class already with reward
  

  and then, your application can control SQL ROWCOUNT % to see if the line was inserted or not.

  (Similarly, you can use a MERGE statement or clause EXISTS (NOT) or any method to do so)

• ORA-04091: table is mutation in a scenario

  Hello everyone
  
  I have a scenario like this:
  
  There are 2 diagrams USER1 and USER2. There is a table (say STATUS_TABLE) with a similar structure in the two schemas. In a scenario of some USER1 must say USER2 about a flag that needs updates in user2. STATUS_TABLE. For this, an intermediate table (called INTER_TABLE) was created. Now USER1 inserts an entry in the INTER_TABLE table and there is a trigger for insertion on the INTER_TABLE that updates this indicator in USER2. STATUS_TABLE. Once this update is over, record in INTER_TABLE is useless and should be deleted. Now the delete statement in the same trigger on INTER_TABLE laying ORA-04091: table is the mutation. The same thing must hapeen in the other direction as well (for example user1 user2).
  
  Something like this:
  

  USER1.STATUS_TABLE          INTER_TABLE          USER2.STATUS_TABLE
                     1 row inserted
             ---------------->
                      trigger on insert------->update a flag here
                    delete that rec from INTER_TABLE     
                         => ORA-04091: table is mutating

  What would be the good approach to perform this feature?
  
  I hope I explained the scenario correctly :). If you need more details, please let me know
  
  Thank you
  Amardeep Sidhu

  Amardeep Sidhu wrote:
  In fact, USER1 & USER2 are in different databases and are managed by different vendors.

  You said at first the different schemas. Now, you say too different databases.
  So, need you a database link then, right?

  Amardeep Sidhu wrote:
  And they can not give each other the privilege to insert directly to STATUS_TABLE. So there must be an intermediate table for communication.

  Do you mean that they want to control the code that performs the insert/update in their own table of STATUS?
  In the affirmative. Then let him write a stored procedure to it. And grant execute on the stored procedure to the other provider (vice versa).

  The table mid-range + remains of trigger solution "outlandish."

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  Model: Toshiba Qosmio G20-127
  Operating Sysytem: Microsoft Windows Media Center Edition

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  Hi abgolf3,

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  Dena
  Microsoft Answers Support Engineer
  Visit our Microsoft answers feedback Forum and let us know what you think.