Insert the next number primary key

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• [ADF, JDev12.1.3] Mastering the form with detail tables: questions about Insertion/deletion, commit / rollback, primary key, handling,...

  Hallo,

  I have a panelTabbed with 4 tabs. In the 1st tab, there is a master form while each of the other tabs, there is a secondary table. Each tab "reads" vo.

  Please see here http://digilander.libero.it/flattit82/OTN_FILES/VoInTabs.png

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  In the master tab / form

  1)

  Here, I would put a button to remove the master record.

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  Could the automated system as this causes problems?

  In the Details tabs / tables

  2)

  I would put a button in each row to delete the line delivering. Can I just drag-and - drop, like button, af line: table the operation "Delete" of the VO istance detail used to create the af: table?

  3)

  If Yes, by clicking on the button performs the default delete operation. But if need to perform some actions before you run the deletion (or, in General, any other operation), how can I do?

  4)

  To create a folder that I use Create or CreateInsert? And what are the differences between them?

  5)

  When I create a new record I need set the value of a field of the VO on which is based the af: table. He filed, let's call it RowDetNumber, is not displayed in the af: table, because it doesn't have be filled in by the user. Mut value is calculated and set "secretly" before posting the new line to the database table. In particular, its value must be calculated as

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  of table_on_which_VO_is_based

  where some_conditions_on_fields_of_the_same_VO

  
  

  For example

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  2   3     2             ...

  3   3     3             ...

  4   3     4             ...

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  I would like to know how permorm this.

  In general

  6)

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  7)

  On the book "development of Web Applications with Oracle ADF Essentials - Sten E. Vesterli", I have read it could be problems when you use tables of database non-Oracle with auto-increment fields.

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  8)

  In general how do I set these fields? I have to put in OT, VO or both?

  

  Thank you

  Federico

  Hello

  (1) you will need to re - question child iterators so that they do not look stale data

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  (5) suggest to do this use a database trigger and the data attribute value DBSequence VO type

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  (7) If you follow the advice of the author, Yes. What it does, I have it does not throw an exception if a value is missing in the validation of the line

  (8) usually you set whatever it is at the level of the OS and put only things on VO if you want to override the default value for a specific behavior

  
  

  Frank
  

• Insert the same record (same key) in different sessions

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  Hello! I am inserting the same record in 2 different sessions without validation using TOAD:
  

  insert into FIFAPPS.TESTES values(3);

  in this table, where ID is a key:
  

  CREATE TABLE FIFAPPS.TESTES
  (
    ID  NUMBER
  )

  In the first session, it goes well, but for the next session... It of just execution and never ends. My question is what happens when I insert the second session? TX in advance.

  You have a unique index or primary key (which will automatically index) on the column?

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• How can I transfer Acrobat 9 Standard on PC to another?  I have the serial number and key for the software originally installed.  He has been installed from download and I have NO CD.

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  Looks like you want to add the number of your iPhone to iMessage and FaceTime.  If this is the case, please see the instructions below.

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  Reconnect to the iMessage and FaceTime on all your devices:

  1. Go to settings > Messages > send & receive. Click on use your Apple ID for iMessage. Then sign in with your Apple ID.
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• What is the difference between primary key and unique indexes with forced not null?

  Primary key is = unique index + not null?

  The short answer is Yes.

  However, even if the primary key, applying both uniquness and not null, there is a notion of "special".

  You can only have one primary key in tables, but you can have multiple unique indexes and constraints not null.

  See: https://asktom.oracle.com/pls/asktom/f?p=100:11:0:P11_QUESTION_ID:8743855576462

• How to enter the next number in a table and move an object.

  Var.Ball:MovieClip

  Ball.y = 0

  Var moveArrayY:Array = [5, 13, 2, 6, 7]

  Var GameSpeed:Timer = (? 1 second?)

  I'm trying to

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  2. wait GameSpeed causes a 1 second pause

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  4. Repeat steps

  Any ideas?

  :

  Var ball: MovieClip;
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  Var moveArrayY:Array = [5, 13, 2, 6, 7];

  Var GameSpeed:Timer = new Timer (1000,0);

  GameSpeed.addEventListener (TimerEvent.TIMER, f);

  GameSpeed.start ();

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• Automatically fill the primary key

  We have Oracle database 10g. I've added a primary key column to my deo_language_resources_t of table with the following logic:
  
  -- 1. create sequences
  create sequences eod_lr_seq
  Start increment by 10 by 5
  MinValue 10 nomaxvalue
  NoCache;
  
  -- 2. Create the primary key column
  ALTER table deo_language_resources_t
  ADD NUMBER RESOURCE_ID;
  
  -- 3. Fill the pk
  Update deo_language_resources_t
  Set id_ressource = eod_lr_seq.nextval
  where id_ressource is null;
  
  -- 3. Create the primary key constraint
  ALTER table deo_language_resources_t
  Add constraint resource_id_pk key (resource_id) primary;
  
  insert into deo_language_resources_t
  (first_name, last_name, id_ressource)
  values ('John', 'Doe', eod_lr_seq.nextval);
  
  The last INSERT statement successfully a line inserted into the table and populated by id_ressource with the next number in the sequence eod_lr_seq. Ok.
  
  Is it possible to set a constraint on deo_language_resource_t so that when I INSERT a line the id_ressource is automatically set to eod_lr_seq.nextval? It is possible to define a trigger and resembling the logic of the trigger? The insert statement would be like:
  
  INSERT INTO deo_language_resources_t (first_name, last_name) VALUES ('John', 'Doe');

  create trigger deo_language_resources_trigger
  before insert on deo_language_resources_t
  for each row
  begin
  select eod_lr_seq.nextval into :resource_id from dual;
  end;
  

• Problem by setting the primary key: relaxation Assigned primary key in the sequence.

  I have a table and a trigger for insert/update on the table. Trigger I get the game of the primary key of a sequence. I tested unit by inserting records in the table. It works very well. Kets primary key the next sequence number.
  
  I use this table as an entity in my adf application. The primary key attribute is set to "DBSequence". But when inserted I do not receive the following sequence for the primary key. Instead it is inserting the temporary number - ve that assigns the adf.
  
  I use JDeveloper 11 g.
  
  
  Can someone tell me what could be the problem?

  Your trigger should be something like:

  create or replace TRIGGER "SID_ASSIGN"
   before INSERT
   ON MY_TABLE
   FOR EACH ROW
  
  BEGIN
  
  if :new.SID is null or :new.SID < 0 then
     SELECT MASTER_SID_SEQUENCE.nextval into :new.SID from dual ;
  end if;
  END;
  

  You can refer to the guide of Dev of 11g for more details on this...

  Julian

• How to fill out the table foreign key to the primary key form

  Hi all

  I'm stuck in this problem for 3 days, and I'm about to research and implement solutions on the internet.

  I have two tables

  create table prim (a number primary key, b varchar2 (100));

  create table CHILD (a number references (a) prim, varchar2 (100)) c;

  I created a page for PRIM table.

  = page name form on PRIM2

  I have manually two columns for the CHILD table to know

  P26_A_1 (for the primary key in the CHILD table)

  P26_C (for the column in the CHILD Table c)

  now when the user clicks on the button CREATE, a row must be inserted into the child table.

  I want to assign the P26_A to P26_A_1 during the validation process, so that a line must be inserted into the PRIM table as well as in the CHILD table.

  How to do this?

  I downloaded my application page in https://apex.oracle.com

  my workspace identifiers are inferior to

  name of the workspace = IMBERT

  username = demo

  password = demo

  kindly guide me.

  Thank you.

  Hello

  I created a new page (page 30) similar to your page and added the insertion of the child. It just check the page and code. It works now, when you insert the prim file is triggered a second trial which inserts the child record manually.

  On page 26 it was some sort of mistake, was easier to create a new as it was almost a standard form.

  Concerning

  Bottom

• primary key for the table

  I have a Gr_order table that was settled long ago, and now he needs to be filled
  with some more search data.
  
  "Orderid" is a primary key for the table, but the question is how can I insert "orderid" in the insert statement in the procedure. I couldn't find any name sequence. There are 1230
  documents that must be inserted.
  

  Desc Gr_order
  Orderid  Number Primary key
  Desc     Varchar2

  INSERT INTO gr_order (orderid,desc)  
  VALUES (???, upper(each_pom.desc);

  Thank you
  Sandy

  You can find the code that inserts into the table and see if it uses the sequence ;-). A sequence is not 'attached' to a particular table - this is the insert statement to determine whether a sequence should be used.

  You can check if the table has a trigger - some developers like to emulate the behavior of MS - sql server by having a trigger on the table that selects in a sequence. If it has such a release, then you just do your insertions without specifying order_id. But if the table does not have such a release, then you cannot know if the table was originally filled using a sequence or not (unless you can find the instructions for inserting somewhere).

• Difference between the immediate and normal constraint primary key value

  Hello
  I tried the following to understand the difference between immediate constraint set and the primary normal stress
  

  create table cust (cust_id number ,cust_name varchar2(25));
  
  alter table cust add constraint cust_id_pk primary key(cust_id)
  deferrable initially deferred;
  
  SQL> insert into cust values(1,'raj');
  
  1 row created.
  
  SQL> insert into cust values(1,'sam');
  
  1 row created.
  
  SQL> commit;
  commit
  *
  ERROR at line 1:
  ORA-02091: transaction rolled back
  ORA-00001: unique constraint (SCOTT.CUST_ID_PK) violated
  
  
  SQL> set constraint cust_id_pk immediate;
  
  Constraint set.
  
  SQL> 
  SQL> insert into cust values(1,'lata');
  
  1 row created.
  
  SQL> insert into cust values(1,'lata');
  insert into cust values(1,'lata')
  *
  ERROR at line 1:
  ORA-00001: unique constraint (SCOTT.CUST_ID_PK) violated

  The above error violation even works for a normal constraints primary / unique
  
  So what is the use of the command
  
  immediate Set constraint cust_id_pk;
  
  
  Thank you

  So what is the use of the command

  In fact, the use of the command when you're dealing with foreign key constraints. As explained below

   SQL>  create table cust (cust_id number ,cust_name varchar2(25), supplier_id number);
  
  Table created.
  
  SQL> create table supp(supplier_id number);
  
  Table created.
  
  SQL> alter table supp add primary key(supplier_id);
  
  Table altered.
  
  SQL>  ALTER TABLE cust ADD CONSTRAINT fk_cust_supp
    2    FOREIGN KEY (supplier_id)
    3    REFERENCES supp (supplier_id)
    4    DEFERRABLE
    5    INITIALLY deferred;
  
  Table altered.
  

  To insert a line in the cust table without entering Ref provider table supp

  SQL> insert into cust values(1,'raj',111);
  
  1 row created.
  

  Line by 1 created successfully (attention this validation is not yet done) because the foreign key constraint is initially deferred.

  Now

  SQL> set constraint fk_cust_supp immediate;
  set constraint fk_cust_supp immediate
  *
  ERROR at line 1:
  ORA-02291: integrity constraint (OWNER.FK_CUST_SUPP) violated - parent key not found
  

  Since Ref no outs in extra table so forced provider violated.

  allows to insert a row in the vendor corresponding with the vendor id in the cust table id

  SQL> insert into supp values(111);
  
  1 row created.
  

  Now, try

  SQL> set constraint fk_cust_supp immediate;
  
  Constraint set.
  

  but now, if you try to insert a row into the table cust without this vendor id in table supp, it give error (since now forced to check from the inserted row, even will not wait for commit)

  SQL>  insert into cust values(3,'bob',222);
   insert into cust values(3,'bob',222)
  *
  ERROR at line 1:
  ORA-02291: integrity constraint (OWNER.FK_CUST_SUPP) violated - parent key not found
  

  Also, in the case of primary key constraints will be checked when you perform VALIDATION, otherwise that it will allow you to insert the second row.

  SQL> alter table cust add constraint cust_id_pk primary key(cust_id)
    2  deferrable initially deferred;
  
  Table altered.
  
  SQL> insert into cust values(1,'raj');
  
  1 row created.
  
  SQL> insert into cust values(1,'sam');
  
  1 row created.
  
  SQL> insert into cust values(1,'bob');
  
  1 row created.
  
  SQL> commit;
  commit
  *
  ERROR at line 1:
  ORA-02091: transaction rolled back
  ORA-00001: unique constraint (OWNER.CUST_ID_PK) violated
  
  SQL> 
  

  SQL> drop table cust;
  
  Table dropped.
  
  SQL> create table cust (cust_id number ,cust_name varchar2(25));
  
  Table created.
  
  SQL> alter table cust add constraint cust_id_pk primary key(cust_id)
    2  deferrable initially deferred;
  
  Table altered.
  
  SQL> set constraint cust_id_pk immediate;
  
  Constraint set.
  
  SQL> insert into cust values(1,'raj');
  
  1 row created.
  
  SQL>  insert into cust values(1,'sam');
   insert into cust values(1,'sam')
  *
  ERROR at line 1:
  ORA-00001: unique constraint (OWNER.CUST_ID_PK) violated
  
  SQL> 
  

  Published by: Azhar Husain on July 27, 2011 12:01

• Question about when Oracle checks the primary keys

  I had data as follows in a table:

  id1  id2
  ---- ----
     1    2
     3    1

  Id1 is the primary key and what I wanted to do was

  update this_table set id1 = id2 where id2 in (1,2);

  I was afraid that if he updated the line with id2 = 1 first of all, it would fail on a unique key constraint. Rather than take this chance I did it with two separate update statements. But I wondered, would he worked with an update? Are primary keys verified at the level of the line or at the level of the statement?
  My level of Oracle 10 g (10.2.0.4.0) is

  Pretty easy to test:

  SQL> CREATE TABLE t (
    2     id1 NUMBER PRIMARY KEY,
    3     id2 NUMBER);
  
  Table created.
  
  SQL> INSERT /*+ APPEND */ INTO t
    2  SELECT id1, id2
    3  FROM (SELECT ROW_NUMBER() OVER(ORDER BY object_id) id1,
    4               ROW_NUMBER() OVER(ORDER BY object_id desc) id2
    6        FROM all_objects)
    7  ORDER BY DBMS_RANDOM.Value();
  
  18247 rows created.
  
  SQL> COMMIT;
  
  Commit complete.
  
  SQL> SELECT * FROM t;
  
         ID1        ID2
  ---------- ----------
        4498      13750
        3268      14980
       14947       3301
       12776       5472
        3796      14452
       10425       7823
        7182      11066
       14917       3331
            
  
  SQL> SELECT * FROM t ORDER BY id1;
  
         ID1        ID2
  ---------- ----------
           1      18247
           2      18246
           3      18245
           4      18244
           5      18243
           6      18242
           7      18241
           8      18240
           9      18239
          10      18238
            
  
  SQL> SELECT * FROM t ORDER BY id1 desc;
  
         ID1        ID2
  ---------- ----------
       18247          1
       18246          2
       18245          3
       18244          4
       18243          5
       18242          6
       18241          7
       18240          8
       18239          9
       18238         10
            
  
  SQL> update t set id1 = id2;
  
  18247 rows updated.
  
  Execution Plan
  ----------------------------------------------------------
  Plan hash value: 4143155445
  
  ---------------------------------------------------------------------------
  | Id  | Operation          | Name | Rows  | Bytes | Cost (%CPU)| Time     |
  ---------------------------------------------------------------------------
  |   0 | UPDATE STATEMENT   |      | 18247 |   463K|     5   (0)| 00:00:01 |
  |   1 |  UPDATE            | T    |       |       |            |          |
  |   2 |   TABLE ACCESS FULL| T    | 18247 |   463K|     5   (0)| 00:00:01 |
  ---------------------------------------------------------------------------
  

  within a single transaction, so that the end result does not violate the PK operation will succeed.

  SQL> rollback;
  
  Rollback complete.
  
  SQL> update t set id2 = 50 where id2 = 123;
  
  1 row updated.
  
  SQL> commit;
  
  Commit complete.
  
  SQL> update t set id1 = id2;
  update t set id1 = id2
  *
  ERROR at line 1:
  ORA-00001: unique constraint (OPS$ORACLE.SYS_C001154403) violated
  

  John

• WITH THE HELP OF SEPARATE OR ONE GROUP WHEN IN PRIMARY KEY CLAUSE

  I WANT A WAY TO EFFECTIVELY PERFORM AGGREGATE FUNCTIONS ON A PARTNER OF THE PARENT TABLE CHILD TABLE AND RETURN ALL THE COLUMNS IN THE PARENT TABLE AND CALCULATED FROM THE CHILD TABLE COLUMNS.
  
  THE PROBLEM IS THAT WHEN I USE GROUP BY ON ALL FIELDS IN THE PARENT, INCLUDING THE PARENT TABLE TABLE, I THINK THAT ORACLE TESTS ALL THE COLUMNS IN THE GROUP BY CLAUSE WHEN IT SHOULD GO HAS THE PRIMARY KEY MAKES ALL IMPLICITLY SEPARATE LINES.
  
  I CREATED TWO TEST TABLES AND RRAN SOME QUERIES TO TEST AT THE SAME TIME.
  
  HERE ARE THE TABLES:
  
  CREATE TABLE A_PARENT_TABLES
  (ACTIVATE THE NUMBER PT_PARENT_TABLE_ID (20.0) NOT NULL,)
  PT_GRP_FEILD1 NUMBER (20.0) NOT NULL ACTIVATE.
  PT_GRP_FEILD2 NUMBER (20.0) NOT NULL ACTIVATE.
  PT_GRP_FEILD3 NUMBER (20.0) NOT NULL ACTIVATE.
  PT_GRP_FEILD4 NUMBER (20.0) NOT NULL ACTIVATE.
  PT_GRP_FEILD5 NUMBER (20.0) NOT NULL ACTIVATE.
  PT_GRP_FEILD6 NUMBER (20.0) NOT NULL ACTIVATE.
  PT_GRP_FEILD7 NUMBER (20.0) NOT NULL ACTIVATE.
  PT_GRP_FEILD8 NUMBER (20.0) NOT NULL ACTIVATE.
  PT_GRP_FEILD9 NUMBER (20.0) NOT NULL ACTIVATE.
  ENABLE CONSTRAINT A_PARENT_TABLES_PK PRIMARY KEY (PT_PARENT_TABLE_ID)
  );
  
  CREATE TABLE A_CHILD_TABLES
  (ACTIVATE THE NUMBER CT_CHILD_TABLE_ID (20.0) NOT NULL,)
  CT_PARENT_TABLE NUMBER (20.0) NOT NULL ACTIVATE.
  CT_VALUE_TO_SUM NUMBER (20.0) NOT NULL ACTIVATE.
  ACTIVATE THE CONSTRAINT A_CHILD_TABLES_PK PRIMARY KEY (CT_CHILD_TABLE_ID)
  CONSTRAINT CT_PARENT_TABLE_FK FOREIGN KEY (CT_PARENT_TABLE)
  REFERENCES A_PARENT_TABLES (PT_PARENT_TABLE_ID) ON DELETE CASCADE ALLOW
  );
  
  
  I HAVE INSERTED THEN 20,000 RECORDS IN THE A_PARENT_TABLES TABLE AND 60,000 IN A_CHILD_TABLES (3 FOR EACH PARENT)
  I THEN RAN THE FOLLOWING QUERY:
  
  
  -ALL FIELDS GROUGPED
  SELECT
  PT_PARENT_TABLE_ID,
  PT_GRP_FEILD1,
  PT_GRP_FEILD2,
  PT_GRP_FEILD3,
  PT_GRP_FEILD4,
  PT_GRP_FEILD5,
  PT_GRP_FEILD6,
  PT_GRP_FEILD7,
  PT_GRP_FEILD8,
  PT_GRP_FEILD9,
  SUM (CT_VALUE_TO_SUM) AS SUMED_VALUES
  Of
  A_PARENT_TABLES,
  A_CHILD_TABLES
  WHERE
  PT_PARENT_TABLE_ID = CT_PARENT_TABLE;
  
  GROUP BY
  PT_PARENT_TABLE_ID,
  PT_GRP_FEILD1,
  PT_GRP_FEILD2,
  PT_GRP_FEILD3,
  PT_GRP_FEILD4,
  PT_GRP_FEILD5,
  PT_GRP_FEILD6,
  PT_GRP_FEILD7,
  PT_GRP_FEILD8,
  PT_GRP_FEILD9;
  
  
  At TOOK 2.42 seconds set IN ŒUVRE
  
  
  
  -ONLY GROUPED FIELDS
  SELECT
  PT_PARENT_TABLE_ID,
  SUM (CT_VALUE_TO_SUM) AS SUMED_VALUES
  Of
  A_PARENT_TABLES,
  A_CHILD_TABLES
  WHERE
  PT_PARENT_TABLE_ID = CT_PARENT_TABLE
  GROUP BY
  PT_PARENT_TABLE_ID;
  
  
  At TOOK 0.71 seconds set IN ŒUVRE
  
  
  WHY DOESN'T THE FIRST QUERY ARE REALIZING THAT HAVING PT_PARENT_TABLE_ID (PRIMARY KEY) IN THE GROUP BY CLAUSE MEANS THAT NO OTHER COLUMNS SHOULD BE CHECKED?
  
  HOW CAN I ACHIEVE THE EQUVILENT OF THE FIRST QUERY IN A WAY MORE EFFECTIVE?

  Hello

  As you can see on the plain explain command
  This full table scan done query1 on A_PARENT_TABLES
  query2 done index range scan on A_PARENT_TABLES

  This is one of the reasons why query2 runs faster than the application 1.

  Why complete analysis of table to query1?
  Its because you want in query1 to display other fields present in A_PARENT_TABLES and is not present in the primary index of this table, that is why he must go to the table for the data.

  Hope this helps.
  Concerning
  Anurag Tibrewal.