BEFORE the UPDATE trigger between field in both tables

Similar Questions

• before the update trigger

  Hi all
  
  
  I need help on this trigger,
  
  It's the scripts of the tables.
  CREATE TABLE TEST (ID NUMBER NULL, NAME VARCHAR2 (20 BYTES) NULL, TYPE NULL VARCHAR2 (20 BYTES), CONSTRAINT TEST_PK PRIMARY KEY (ID));
  Insert in the TEST
  (ID, NAME, TYPE)
  Values
  (1, "caroline", "student");
  COMMIT;
  
  CREATE THE TEMP TABLE (NULL NUMBER ID, NAME VARCHAR2 (20 BYTES) NULL, NULL OF TYPE VARCHAR2 (20 BYTES), TST_ID NUMBER NULL, CONSTRAINT TEST_PKD PRIMARY KEY (ID), KEY FOREIGN (TST_ID) (ID) REFERENCES TEST);
  
  create sequences tst_id
  
  
  There are two tables.
  Test table (first picture). This is a table with the original data. Now, it's so that when there is an update on this table, the record that is updated should be written to the temp(second table) table in the initial state.
  
  For example.
  the record in the table test is updated
  ID NAME TYPE TST_ID
  1 ColArt student 1
  
  Temp table is inserted recording that had updates,
  
  ID NAME TYPE TST_ID
  1 student caroline 1
  
  SO to do what I, ve written the following trigger
  
  CREATE OR REPLACE TRIGGER CAROLINE.bru_test
  BEFORE THE UPDATE
  WE'RE CAROLINA. TEST
  REFERENCING NEW AS new OLD IN the old
  FOR EACH LINE
  DECLARE
  
  BEGIN
  insert into temp (tst_id, name, id, type)
  (select tmp_seq.nextval, id, name, type of test);
  
  END;
  /
  
  But when I update the test table, I get an error of mutation.
  
  If anyone can help with this trigger,
  
  Thank you

  something like that

  CREATE OR REPLACE TRIGGER bru_test
  BEFORE UPDATE
  ON TEST
  FOR EACH ROW
  DECLARE
  BEGIN
  insert into temp(id,tst_id,name,type) values
  (tst_id.nextval, :old.id, :old.name, :old.type);
  END ;
  /
  

  you want to store the original values, right?
  you did a SELECT INSERT - instead of INSERT VALUES

• Table is the mutation of error in after the update trigger

  Hello
  
  In all of my table, I have columns EDITDATE and EDITUSER. So whenever a table is updated I need to update these two fields with the USER and SYSDATE. For this I use a BEFORE UPDATE trigger. This trigger is activated, but I get "ORA-04091: table %s.%s is changing, function of triggering/can not see" error every time I update the table. I used this method in SQL Server. I understand that Oracle doesn't have to be the same as SQL Server but I do not know there is a way to do this. Do you know what it is?
  
  EDIT: Here is the Code of the trigger
  
  create or replace
  TR_LEGISLATION_CALCUL_AE RELAXATION
  BEFORE THE UPDATE
  ON LEGISLATION_CALCUL
  FOR EACH LINE
  DECLARE
  v_LEGISLATIONCALCULID NUMBER (10,0);
  
  BEGIN
  SELECT: NEW. LEGISLATIONCALCULID
  
  IN v_LEGISLATIONCALCULID
  FROM DUAL;
  UPDATE LEGISLATION_CALCUL
  SET EDITUSER_ID = UID,
  EDITDATE = SYSDATE
  WHERE LEGISLATIONCALCULID = v_LEGISLATIONCALCULID;
  END;
  
  Published by: Mikhail on 12 March 2012 23:54

  Mikhail says:
  Hello

  In all of my table, I have columns EDITDATE and EDITUSER. So whenever a table is updated I need to update these two fields with the USER and SYSDATE. For this I use the AFTER UPDATE trigger. This trigger is activated, but I get "ORA-04091: table %s.%s is changing, function of triggering/can not see" error every time I update the table. I used this method in SQL Server. I understand that Oracle doesn't have to be the same as SQL Server but I do not know there is a way to do this. Do you know what it is?

  EDIT: Here is the Code of the trigger

  create or replace
  TR_LEGISLATION_CALCUL_AE RELAXATION
  BEFORE THE UPDATE
  ON LEGISLATION_CALCUL
  FOR EACH LINE

  just put this in your before update (and not after the update as you mentioned) for each trigger line:

  BEGIN
  
  :new.EDITUSER_ID := UID;
  :new.EDITDATE := SYSDATE;
  
  END;
  

• AirPlay does not work on Apple TV with ios 10.  It was working before the update.  Please notify.

  AirPlay does not work on Apple TV with ios 10.  It was working before the update.  Please notify.

  Try these steps, check to see if things work after each step if necessary, before you try the next.

  1. Check AirPlay is on the Apple TV (turn market if it already is)
  2. Check that both devices are on the same network (settings > Wifi on the mobile device and the settings > general > network, on the Apple TV).
  3. Restart the Apple TV (settings > general > restart).
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  5. Restart your router. (Also try to remove the power cord for at least 30 seconds)
  6. Restart your computer or mobile device.

  If you're still having problems, try to use 802.11n for wifi if you currently use 802. 11B or 802. 11 g.

  If your problem is AirPlaying starting a computer, try turning off bluetooth

  If you're still having problems, the following article can help you.

  Troubleshooting AirPlay

  Troubleshooting connections and Wi - Fi networks

  Recommended Wi - Fi settings

  WiFi Diagnostic Software (for Mac users)

  You will also find help on this page, where I have collected some of the more unusual solutions for network problems.

• Vista Home Prem - problems since installation on 26 August updated - USB problems and everything deleted before the update restore points

  I have a Dell XPS 430 quad-processor. Receipt of the August 26 as update automatic updates. Since the computer was restarted after autoupdates, I have problems. Biggest problem is when I switch to another port my 4 ports KVM Trendnet TK - 407K and back on my Dell computer - the computer is blocked and the video is all garbled. My only recourse is to start the computer cold. After the first time it happened, I knew immediately updates, so I went in my restore points to restore back before the update. When I did restore bluescreened, but I was unable to capture data as computer restarted itself and get into the routine of starting fix. Difficulty of startup said it could not solve my problem.

  When I returned to restore to try to restore once again, I found that all my restore points have been removed. I found a utility called the shadow on the web Explorer and installed. He seems to find all my data restore point on the recovery D: drive, but Windows is not seeing them.  I should also mention, usb-wise, given that these updates have been applied, my Canon digital camera is not recognized when I hang it in one of the USB ports.

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  I'm tempted to just delete all the updates that have been installed on 8/26 to see if that helps - esp KB973879 I read on this patch causing a lot of problems with other computers.  Another thing that I have not tried is to use the restore from a command prompt application.

  Any suggestions would be greatly appreciated!

  Thank you!

  Hi brab61,

  Welcome to Microsoft Vista answers Forum!
   
  It is good to know that you're not faced problems with your computer.
   
  However, I suggest you go ahead and turn on Windows automatic updates to fix security vulnerabilities and it is beneficial for you to have these updates installed.
   
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  http://www.Microsoft.com/Windows/downloads/windowsupdate/default.mspx
   
   
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  1. Click Start and type cmd in the box start the search.
  2 right click "cmd" in the list programs, and then click Run as administrator.
  3. you are asked to enter an administrator password or a confirmation, type your password or click on continue
  4. at the command prompt, type "sfc/scannow", and press ENTER.
   
  Note:- After that, you can now install an update both manually and check the update is causing the problem and let us know to help you and solve the problem.

  How to repair the operating system and how to restore the configuration of the operating system to an earlier point in time in Windows Vista
  http://support.Microsoft.com/kb/936212

  Hope this information is useful.
   
  Let me know if it worked.
  All the best!
   
  Thank you, and in what concerns:
  Divya R - Microsoft technical support.
  Visit our Microsoft answers feedback Forum and let us know what you think.

• BEFORE the UPDATE of relaxation with time stamp does not work as expected

  We have a scenario where I check update operations on a table.

  I created a before update TRIGGER, so that every time he goes an update on the main table statement, one before the image of the lines is captured in the table of audit with timestamp.

  Since it is before updating, ideally the audit table timestamp (TRG_INS_TMST) should be less main table timestamp (IBMSNAP_LOGMARKER) VALUE, I mean TRIGGER should happen before the update.

  (I could understand in a way that the UPDATE statement is formulated with SYSTIMESTAMP earlier before the TRIGGER is evaluated and so UPDATE is to have a time stamp prior to TRIGGER, but this isn't what we wanted. We want PRIOR update)

  'Table' IBM_SNAPOPERATION IBM_SNAPLOGMARKER            
  ---- ----------------- -------------------------------
  T1   U                 13-OCT-15 03.07.01.775236 AM   <<---------- This is the main table, This should have the latest timestamp
  T2   I                 13-OCT-15 03.07.01.775953 AM
  

  Here is my test case.

  DELETE FROM TEST_TRIGGER_1;
  
  DELETE FROM TEST_TRIGGER_2;
  
  SELECT 'T1', ibm_snapoperation, ibm_snaplogmarker FROM TEST_TRIGGER_1
  UNION
  SELECT 'T2', ibm_snapoperation, TRG_INS_TMST FROM TEST_TRIGGER_2;
  
  INSERT INTO TEST_TRIGGER_1 (ID,ibm_snapoperation, ibm_snaplogmarker)
       VALUES (1, 'I', SYSTIMESTAMP);
  
  COMMIT;
  
  SELECT 'T1', ibm_snapoperation, ibm_snaplogmarker FROM TEST_TRIGGER_1
  UNION
  SELECT 'T2', ibm_snapoperation, TRG_INS_TMST FROM TEST_TRIGGER_2;
  
  UPDATE TEST_TRIGGER_1
     SET IBM_SNAPOPERATION = 'U', ibm_snaplogmarker = SYSTIMESTAMP;
  
  COMMIT;
  
  SELECT 'T1', ibm_snapoperation, ibm_snaplogmarker FROM TEST_TRIGGER_1
  UNION
  SELECT 'T2', ibm_snapoperation, TRG_INS_TMST FROM TEST_TRIGGER_2;
  

  Def trigger:

  CREATE OR REPLACE TRIGGER etl_dbo.TEST_TRIGGER_1_TRG BEFORE UPDATE OF IBM_SNAPOPERATION
  ON TEST_TRIGGER_1 REFERENCING OLD AS OLD NEW AS NEW
  FOR EACH ROW
  WHEN (
  NEW.IBM_SNAPOPERATION= 'U'
        )
  DECLARE
  V_SQLCODE  VARCHAR2(3000);
  --PRAGMA AUTONOMOUS_TRANSACTION;
  BEGIN
  INSERT INTO etl_dbo.TEST_TRIGGER_2
  (ID,
  IBM_SNAPOPERATION,
  IBM_SNAPLOGMARKER,
  TRG_INS_TMST
  )
  VALUES (:OLD.ID,:OLD.IBM_SNAPOPERATION,:OLD.IBM_SNAPLOGMARKER,SYSTIMESTAMP)
  ;
  --COMMIT;
  END;
  /
  

  Output is something like this

  1 row deleted.
  1 row deleted.
  no rows selected.
  1 row created.
  Commit complete.
  
  'T1' IBM_SNAPOPERATION IBM_SNAPLOGMARKER            
  ---- ----------------- -------------------------------
  T1   I                 13-OCT-15 03.07.00.927546 AM 
  1 row selected.
  1 row updated.
  Commit complete.
  
  'T1' IBM_SNAPOPERATION IBM_SNAPLOGMARKER            
  ---- ----------------- -------------------------------
  T1   U                 13-OCT-15 03.07.01.775236 AM   <<---------- This is the main table, This should have the latest timestamp
  T2   I                 13-OCT-15 03.07.01.775953 AM 
  
  2 rows selected.
  

  But for some reason, even after the creation of the 'AFTER' trigger for update, it works as expected. Sense - the main table is not having the last timestamp given

  It's OKAY - I told you in my reply earlier. Reread my answer.

  could understand somehow that the UPDATE statement is made with earlier

  SYSTIMESTAMP until the TRIGGER is assessed and updated so is to have

  time stamp prior to the trigger, but this isn't what we wanted. We want to

  BEFORE the update)

  As I told you before that your UPDATE statement occurs BEFORE the trigger is activated.

  Despite what the other speakers have said, it makes NO DIFFERENCE if you use a BEFORE UPDATE or an AFTER UPDATE trigger. Your UPDATE statement runs ALWAYS BEFORE the trigger.

  HE has TO - it's your update processing statement that causes the trigger to fire.

  Your update statement includes SYSTIMESTAMP. If during the processing of your return to update the value of SYSTIMESTAMP "at this exact time" is captured.

  Then your trigger is activated and starts to run. ANY reference to SYSTIMESTAMP that you use in your trigger cannot be earlier than the value of until the trigger was executed. It's IMPOSSIBLE.

  The trigger can use the SAME value by referencing: NEW and the column name you store the value. Or the trigger can get its own value that your code is doing.

  But the SYSTIMESTAMP value in the trigger will NEVER earlier than the value in your query.

  And none of these values can actually be used to tell when the changes are really ENGAGED since the trigger does not work and CAN NOT, to know when, or if, a validation occurs.

  Reread my first answer - he explains all this.

• Before the update

  Hello world
  I need a support every time that update the table value I want this value before update. E.g.
  
  Select empno, ename from emp;
  
  Output: EMPNO, ENAME
  SUMAN 10
  SOHAN 20
  
  UPDATE EMP SET EMPNO = "30" WHERE NAME = 'SUMAN ';
  
  COMMIT;
  
  Now, I find this old Suman (empno) value. Is it possible through trigger if so plese write step by step. And I also want any table value before the update stored in another table. I use 10.2.01.
  
  Thank you and best regards,
  Suman Gupta

  Dear Suman Gupta!

  Yes, it is possible with a trigger.

  --This creates an empty table with the same structure as the employees table. This table will hold the old values.
  CREATE TABLE old_values_table
  AS
  SELECT *
  FROM   employees
  WHERE 1=1;
  /
  
  CREATE OR REPLACE TRIGGER before_employees
  AFTER UPDATE ON employees
  REFERENCING NEW AS NEW OLD AS OLD
  FOR EACH ROW
  BEGIN
    INSERT INTO old_values_table VALUES (:old.employee_id, :old.last_name, :old.first_name, ... and so on);
  END;
  /
  

  Yours sincerely

  Florian W.

  Published by: Florian W. 30.06.2009 12:43

• Firefox, now sucks but was great before the update.

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  @swati90

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• I have Windows vista Ultimate edition. but he started asking for activation after the windows update while it has already been activated before the update.

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