The Oracle trigger

Similar Questions

• Basic question on the implementation of the Oracle trigger

  For example, suppose I have this trigger code:
  

  CREATE TRIGGER schema.trigger_name 
      BEFORE 
      DELETE OR INSERT OR UPDATE 
      ON schema.table_name 
         pl/sql_block
  END trigger_name;
  ALTER TRIGGER schema.trigger_name ENABLE;
  commit;

  The weird part is I wrote this trigger but don't know how to run it. Can someone give me the answer to these question, please?
  
  1. How can I add this trigger on the table 'table_1 '.
  2. I want the trigger to be permanent on the table_1 and not only for a particular session. How do I do that?
  3. are there things I need to take care of during the execution of a trigger? Something like best practices?
  
  I'm using Linux. So, please give your solution based on SQL more
  
  EDIT: Also, how can I make sure that the trigger is. Is it possible to see?
  
  Edited by: TuX4EvA January 6, 2010 03:24

  1.
  Replace

  ON schema.table_name
  

  by

  on schema.table1
  

  2 triggers in the table are always permanent and not for a given session.

  To check this trigger is created in the database dictionary, you can use

   select owner, trigger_name from all_triggers;
  

  For more information on triggers, please take a look at the Guide of the Oracle® Database 2 day Developer's:
  http://download.Oracle.com/docs/CD/E11882_01/AppDev.112/e10766/tdddg_triggers.htm#BABIHIHH

  Edited by: P. Forstmann on 6 Jan. 2010 12:28

  Edited by: P. Forstmann on 6 Jan. 2010 12:31

• Need help on the text of the Oracle

  Hi Master,

  I'm working on the text of the Oracle. I executed the step/commands below. All are executed successfully. But I saw no improvement in my work. But I have a doubt, explain below.

  create the table ent_dnt in select * from entitlement_dnt;

  BEGIN

  CTX_DDL. CREATE_PREFERENCE ("oracletext_datastore", "MULTI_COLUMN_DATASTORE");

  CTX_DDL. SET_ATTRIBUTE

  ("oracletext_datastore", "COLUMNS",

  "ORDER_NUMBER, GENERIC_PRODUCT_NAME_EXT, ENTITLEMENT_REF_ID, DEVICE_ASSET_ID, DEVICE_UNIQUE_ID, SWSERVICETAG, PRODUCT_DESC');

  END;

  CREATE INDEX idx_oracle_text

  ON Ent_dnt (search_cols)

  INDEXTYPE IS CTXSYS. FRAMEWORK

  PARAMETERS ("DATASTORE oracletext_datastore");

  BEGIN

  DBMS_STATS. GATHER_TABLE_STATS ('EE', 'ent_DNT', cascade = > TRUE);

  DBMS_STATS. GATHER_TABLE_STATS ('EE', 'upd_DNT', cascade = > TRUE);

  DBMS_STATS.gather_index_stats ('EE', 'idx_oracle_text1');

  DBMS_STATS.gather_index_stats ('EE', 'idx_oracle_text');

  END;

  the steps above are created / executed successfully. But when to run my select query... I did not see anywhere oracle text index name in my plan to explain.

  Plan

  SELECT STATEMENT ALL_ROWSCost: 28 393 bytes: 49 675 cardinality: 5

  3 TRI GLOBAL bytes: cardinality 8: 1

  TABLE ACCESS BY INDEX ROWID TABLE EA 2. EE_PROD_GRP_ENTITLEMENT cost: 4 bytes: 8 Cardinality: 1

  1 INDEX RANGE SCAN INDEX EE. IDX_PGE_ENT_ID cost: cardinality 3: 1

  5 SORTING GLOBAL bytes: cardinality 8: 1

  TABLE 4 TABLE EA FULL ACCESS. ENT_DNT cost: 26 781 bytes: 8 Cardinality: 1

  20 SEE EE. Cost: 28 393 bytes: 49 675 cardinality: 5

  19 STOPKEY COUNTY

  18 SEE EE. Cost: 28 393 bytes: 49 610 cardinality: 5

  GROUP 17 SORT BY STOPKEY cost: 28 393 bytes: 2 295 cardinality: 5

  the HASH JOIN cost EXTERNAL 16: 28 392 bytes: 2 295 cardinality: 5

  Cost EXTERNAL 14 NESTED LOOPS: 28 388 bytes: 1 808 cardinality: 4

  Cost EXTERNAL 11 NESTED LOOPS: cardinality 28 384 bytes: 1 600: 4

  Cost of 8 HASH JOIN: 28 383 bytes: 1 552 cardinality: 4

  TABLE 6 TABLE EA FULL ACCESS. UPD_DNT cost: 1 089 bytes: 174 cardinality: 6

  TABLE 7 TABLE EA FULL ACCESS. ENT_DNT cost: 27 292 bytes: 110,648,108 cardinality: 308 212

  TABLE ACCESS BY INDEX ROWID EE TABLE 10. PRODUCT_LICENSE_PART cost: 1 bytes: cardinality 1: 12

  9 INDEX RANGE SCAN INDEX EE. IDX_PLP_PD_DATA_ID cost: cardinality 0: 1

  TABLE ACCESS BY INDEX ROWID EE TABLE 13. PD_KT_DETAILS cost: 1 bytes: cardinality 1: 52

  12 INDEX RANGE SCAN INDEX EE. IDX_PKD_PART_NUM cost: cardinality 0: 1

  TABLE 15 TABLE EA FULL ACCESS. Cost LEGACY_CONFIG: 03:00 cardinality: 5

  and cost is so high. But when I ran the query below. I saw no table $.

  TEST@orcl_11gR2 > SELECT object_name, object_type

  2 FROM user_objects

  3. WHERE object_name LIKE '% oracle % '.

  4.

  Usually DR$ $I $K, $N, $R, $X tables aren't creaed. where is the problem? Please help me. I perform this task.

  Concerning

  AR

  3. I L 36 records on the ent_dnt table... I added another 1 lakh records more... This index is does it work properly? or should I update again?

  As long as you use SYNC (ON COMMIT) each ecord you insert is indexed immediately after you have posted.  This will result in gradually increasing index fragmentation, you OPTIMIZE the index or ALTER and REBUILD the index or DROP and RE-CREATE the index to reduce fragmentation and keep the queries that use CONTAINS to run fast.  How many times you need to do this depends on how many times you insert the amount of data.

  Also, if you update data, then you must make sure that whenever you do an update, you update the column that the index is created as search_cols, in order to trigger the synchronization.  That you updated the search_cols to is okay, as long as it is updated.  For example, you might be updated to U.

• When clause is missing from the logon trigger

  I have a questions that looks very similar to 14840619 of Bug - FORUM - RELAXATION-CLAUSE WHEN NOT WATCH if ONLY a BASIC USER PRIVILEGES

  Assuming that SCOTT is a DBA and it issues the following command to create a logon trigger.

  CREATE OR REPLACE TRIGGER "SYSTEM". "SCOTT_LOGON_TRG" AFTER LOGON ON DATABASE.

  WHEN BEGIN (USER in ("SCOTT"))

  RUN IMMEDIATELY 'ALTER SESSION SET EVENTS "TRACE NAME CONTEXT FOREVER, LEVEL 12 10046" ';

  END;

  /

  ALTER TRIGGER 'SYSTEM '. "" SCOTT_LOGON_TRG "DISABLE;

  The trigger is created successfully.

  When you view the trigger of the developer sql code I don't see the WHEN clause.

  IM using sql developer version 4.0.1.14 (Build hand 14.48) 64-bit on Windows 7

  Is this a known bug?

  Thank you

  I created a service request with the support of the Oracle, and they were able to reproduce the issues.

  Here is the related bug number

  Bug 18603106 : WHEN CLAUSE is MISSING THE LOGON TRIGGER

• Change all the triggers table in the oracle schema by using a script - possible?

  
  Is it possible to modify all the triggers table in the oracle schema using a single script or modify each trigger table separately is the only way?

  A couple of alternatives come to mind.

  (1) you can go in SQL Develolper, go to the schema, expand the node for triggers and select all the triggers that you want to change.  Right-click and choose the fast DDL--> save spreadsheet.  Find and replace in the worksheet and then run the script.

  (2) if the trigger is the same for all 70 tables, you can move the PL/SQL out of the trigger and in a procedure in a package and just call the procedure of 70 triggers.  Now, the code is kept in the same place.  For new tables, you can add a call to the procedure and you are done.  If all 70 triggers are not the same, see if you can pass parameters to allow a generalized procedure that they can all use.

  You have not indicated what your triggers.  Are insert you columns of auditing, archiving data, inserting into a table of log, update another table or something else?  What type of trigger is it?  What you trying to accomplish with your triggers?

  Marcus Bacon

• Need help to write to Oracle and SQL Server in the Oracle triggering

  We have a third which feeds data for us. Their client application feeds directly to some source tables in our Oracle database 10g. We have triggers on those tables that sort and treat lines as they come.
  
  We have a new operation and try to write some of these incoming data now to a SQL Server database through heterogeneous services - essentially the same exact data in two databases. I have a related database that works very well for the selection, but I've never tried to write Oracle PL/SQL to write in a DB SQL Server 2008. My first attempt was met with the following error: "ORA-02047: impossible to join the current distributed transaction.
  
  I found another thread where they say that the only way to do it is by using a stand-alone transaction, but they do not give an example. Here is the section of relaxation that I use:

    select to_char(new_date,'MM-DD-YYYY') into sql_txt from dual;
    insert into mancamp_location@sqlweb
         ("UnitID", "ManCampID", "Lat", "Long", "UpdateDT", "VehSpeed", "VehDirection", "Landmark")
      values (v_truck, f_unit, f_lat, f_long, sql_txt, f_spd, f_dir, f_ldmk);

  Can someone point me to a way to accomplish this simple insertion?

  An example of a standalone trigger is:

  Suppose you have a table in Oracle:

  CREATE TABLE emp_sal
  (
  EMPNO NUMBER 4,
  SAL NUMBER (7.2));

  and a similar table in a SQL server:
  SQL Server:

  CREATE TABLE emp_sal
  (
  EMPNO NUMERIC (4).
  SAL NUMERIC (7.2));

  Then, you can create an insert trigger that replicates the data:
  CREATE OR REPLACE TRIGGER dg4odbc_repl AFTER INSERT ON emp_sal
  FOR EACH LINE
  DECLARE
  PRAGMA AUTONOMOUS_TRANSACTION;
  BEGIN
  INSERT INTO 'emp_sal"@MSODBCSQLSERVER_DG4ODBC_EMGTW_1123_DB '.
  VALUES (: new.empno,: new.sal);
  COMMIT;
  END;
  /

  -Note the validation, otherwise risk of ORA-6519

  When you now insert a record into the Oracle database:
  insert into emp_sal values (1234, '1200,89');
  the trigger is activated and inserts the record in SQL Server:
  Select * from 'emp_sal"@MSODBCSQLSERVER_DG4ODBC_EMGTW_1123_DB;
  EMPNO, SAL
  ----- -------
  1234 1200.89

  It works fine when you post data insert, but as soon as restore you the insert only data Oracle will be cancelled - data will remain as long as the independent transaction dedicated to its SQL Server insert:

  insert into emp_sal values (1384, '1200,89');
  Rollback;
  Select * from emp_sal;
  EMPNO, SAL
  ----- -------
  1234 1200.89

  Select * from 'emp_sal"@MSODBCSQLSERVER_DG4ODBC_EMGTW_1123_DB;
  EMPNO, SAL
  ----- -------
  1234 1200.89
  1384 1200.89

  So I strongly recommend to use the DG4MSQL gateway which is able to participate in distributed transactions and allows validation/restore transactions.

  DG4ODBC lie on OTN (http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html-online check out the "See all" link for your favorite platform), cloud of delivery of software Oracle (https://edelivery.oracle.com/) or "My Oracle Support". My Oracle support welcomes the latest version 11.2.0.3. In My Oracle Support goto patches and updates, then search for 11.2.0.3 data set Patch 10404530patch: 11.2.0.3.0 PATCH SET for ORACLE database SERVER, choose your preferred platform and see the Readme which CD contains the gateway software.

  Published by: kgronau on April 24, 2012 08:44

• How to check the oracle forms?

  Dear friends,
  
  OS: RHEL AS 3
  DB: 9i R2
  Forms: Developer 6
  pc clients: Windows XP sp2
  Forms Server: novell 4.8
  
  How to check the oracle forms? for example, we have developed the forms using Developer 6. We would like to know which user accesses the number 152 of the form or the form name hrform.fmx
  Because, every time make us changes in the forms we need more fmx if the user accesses this form so we can not crush him in our novell server.
  Usually, we use a windows scheduler in the night to copy forms. so, if we know the user who has not disconnected from our system. the next day, we ask the user.
  
  Thank you

  Take a look at

  sys. DBMS_APPLICATION_INFO.set_module

  and

  sys. DBMS_APPLICATION_INFO.set_client_info

  and call these package with good info in each of your form in for example the trigger a TIME NEW FORM INSTANCE...

• How will I know if Java is installed/enabled in the Firefox browser on my Linux system? I went to the Oracle/Java test page and it does not have Java installed.

  I see that Javascript is enabled. Is javascript and java, the same thing?

  To avoid confusion:

  • http://KB.mozillazine.org/JavaScript_is_not_Java
  • http://KB.mozillazine.org/JavaScript
  • https://support.Mozilla.org/KB/JavaScript

  Note that you need the Web-IcedTea Plugin installed and it is a different implementation of Java as the Oracle's Java plugin (formerly Sun), while the Oracle does not detect this plugin.

• Evanescent synchronization using the TTL trigger

  Hi all

  I work with the NI DAQ (PCIe 6363) set and uses a waveform as outputs analog to control a scanning unit.

  Now I want this output to synchronize with the rising edge of an external TTL signal (the * fire * out of a camera).

  To do this, I used [Cont Gen tension Wfm - Int Clk - analog Start] - model with minor changes (see attachment with a few comments included). In fact, it works, but only if the output signal is long finished when arrives the next TTL climbing aboard. What I want is a rising edge trigger that happens, say, 100 Hz, and a waveform near 10 ms-long that starts with this trigger. So far, I have to operate with a approx. 8 ms wavelength. It seems to me that the loop in Labview (see attachment) software takes the rest of the time. If I increase the wavelength to 9 ms or more, the loop is too slow and little miss the next rising edge trigger.

  Unfortunately, I can't use [continuous sampling] that there is too much instability in the external trigger.

  Is it possible to optimize this problem? For example, is it possible to tell la carte DAQ 'turn off this waveform whenever you receive the trigger"instead of"put on this waveform when you receive the trigger, then shut up? " Or is it possible to run two while loops in parallel that alternately hold the trigger signal and both use the same output channel? There is another, simpler solution?

  Thanks for the pointers,

  Peter

  You must use the property start.retriggerable, something like this:

  

  Best regards

• 200077 error has occurred to the property trigger Node DAQmx DAQmx Start Trigger (analog Edge.vi:1-> CRT with trigger

  I created a program that reads analog data and draw a waveform, but I need to stop the program when the voltage drops to a certain tension. When I tried the analog edge trigger it showed the error in the subject:

  Reason: The requested value is not supported for this property value. The value of the property may be invalid because it is in conflict with another property.

  Property: Trig startup type

  Requested value: analog edge

  You can select: Digital Edge, no

  I understand what the analog trigger is not available for my DAQmx version, without again getting equiptment, can I use a trigger to stop reading data at a specific voltage?

  How to start and stop a similar read digital triggering?

  Thanks in advance!

  Ah! Well, then the Boolean value of status would be connected to the State of the thread of the unbundled error, Boolean stop to the stop button and the Boolean value to the right would be the stop for loop itself... so something like this (see image).  This is an excerpt from LabVIEW 2014, so it can not easily fall in your version, but I hope it's clear enough on how you can wire it to the top.

• Integrate the external trigger into camera (PCI-1424)

  Hi all

  I use a PCI 1424 acquisition card to take the image of a Kodak "camera".

  Currently, I put the camera on a continuous mode - in which the camera give me frames one after one. I am able to 'snap' or 'capture' images of MAX with the help of the camera file. I can write a simple VI for 'break' a single image in LabVIEW.

  Now, I want to go to the single camera viewing mode. In this mode, the unit will display a single image to a trigger signal (the rising edge of a singal TTL).

  I wrote a short program for parallel port allows to send this signal triggered at the camera. The increase in power to the camera temporialy, I know that the camera captures an image.

  However, the question is how can I nathalie caron this image?

  What I do now, is to select 'snap' a picture to the MAX and allow a delay of 10 sec. After you click on the snap, I'll go to LabVIEW and send the trigger signal to the camera.

  However, in MAX, I altenativley had a black and white image that is of the Court a false image.

  does anyone know the reason?

  and how do I integrate the VI trigger in the captuire VI image, so that I can finish the task of single capture inside a VI?

  There is a sample VI "Grab.vi triggered" in which user can set waiting time and other properties for IMAQ1394, but I do not know how to PCI1424

  Thank you very much.

  Dear John,

  I have attached this VI.

  LabVIEW 7.1

  Framegrabber: PCI 1424

  Trigger the camera: after set us the camera in mode single shot (by rider material), I just need to send a signal of TTL and the camera will trigger in the front of this signal. So I schedule a pulse to the OID 0 pins at this TTL signal output.

• How can I change the oracle schema in SSMA?

  We tested migration in SSMA for Oracle to SQL Server, and we are now ready to migrate from the production data.  However, the SSMA tool doesn't let me change the Oracle schema.  I can change the data source, but it will never refresh show new patterns in Oracle.

  Hello

  Please go to the Microsoft Community Forums.
   
  This problem would be better suited to the TechNet community.
  Please visit the link below to find a community that will provide the support you want.
  http://social.msdn.Microsoft.com/forums/en-us/categories
   
  Thank you.

• How to understand the reference trigger as a trigger to stop?

  Hello

  I tried to use an external signal how the trigger works / stop for analog data entry. I had looked for solutions and above all that they suggest to use a reference trigger. But I don't really understand how it is applied. For example, why it should be set to the number of samples before release? For me, the number of samples that are taken are those between the market trigger / stop... I don't really have it.

  Migne

  Hello master,

  As see you, there is no trigger stop easily available with DAQmx. Indeed, you will need to use the reference if you want to trigger the end of the acquisition. What actually a c of reference trigger on a task must begin a kind of continuous acquisition until the trigger occurs. Then by default you will get a certain number of samples before (before) and after (after release) edge relaxation when you read the buffer after the triggering event.

  To read data continuously during the acquisition, you must change a property to change the access mode during playback. You will also need to manage properly reading the buffer has you will certainly get the same amount of samples during the last reading.

  Detailed explanation again as long as there are for example--> http://digital.ni.com/public.nsf/allkb/BA775B0E445BFA79482571FE0032CCEB?OpenDocument

• I want to know the oracle commands in the syntax descriptions

  Hello Sir,

  I want to know the commands that is used in oracle 10 g and guide please to import excel tables to oracle

  Hello

  Your question is related to the Oracle and would be better suited to the Oracle forum:

  https://support.Oracle.com/

• SSRS for lack of outer join with the Oracle data source

  It seems to be a problem with the Oracle driver used in the Reporting SERVICES query designer.

  When you use an Oracle data source, if I create an outer join in the graphic designer, it automatically inserts '{OJ' before the join and '} ' after her.  This is an incorrect syntax for Oracle and refuses to start.  The curly braces and the JO editable in designer text, but if I go back to the graphic designer and immediately to reintegrate them.

  Only, this has started to happen a year or two ago - before that it worked, but with the old (+) syntax.

  Can it not be healed?  It makes things very difficult.

  -Geoff

  Hi Geoff,

  Thanks for posting in the Microsoft Community.

  However, the question you posted would be better suited in the Forums of the Oracle Support; We recommend that you post your query in Oracle Support Forums to get help:

  https://forums.Oracle.com/forums/main.jspa;JSESSIONID=8d92100c30d8fb401bcbd10b46c38c9ddf1a3242549a.e34SbxmSbNyKai0Lc3mPbhmSc3aNe0? CategoryID = 84

  If you have any other questions or you need Windows guru, do not hesitate to post your questions and we will be happy to help you.