Another syntax for creating primary key

Similar Questions

• Trigger - use one to create primary key values

  I'm stuck on a simple use to do a TRIGGER that fires when you add new rows to a table and want to Developer SQL to add the primary key value.

  I seem to be able to relax, but it is not inserted the primary key but giving a SQL error: ORA-00947: not enough values.

  Here's what I have.

  CREATE TABLE HF_fishers

  (

  contact_id INT NOT NULL

  , name VARCHAR (25)

  , last_name VARCHAR (35)

  PRIMARY KEY (contact_id)

  );

  CREATE SEQUENCES HF_fishers_seq.

  Then I ran the following trigger:

  CREATE

  HF_fishers_seq_trigger RELAXATION

  BEFORE INSERTING

  ON HF_fishers

  FOR EACH LINE

  BEGIN

  IF (: new.contact_id IS NULL)

  THEN

  : NEW.contact_id: = NVL (: NEW.contact_id)

  HF_fishers_seq. NEXTVAL

  );

  END IF;

  END HF_fishers_seq_trigger;

  =============

  Then I executed the following SQL statement that gives the error.

  INSERT INTO HF_fishers VALUES('Jacob','Muller');

  But if I do everything is good except that it defeats the purpose of relaxation.

  INSERT INTO HF_fishers VALUES(1,'Jacob','Muller');

  MySQL has a nice 'AUTO_INCREMENT' command, but from what I understand in Oracle, I need to set up a trigger to automatically increment a column/cell, which in this case I use for the PRIMARY KEY.

  3003916 wrote:

  OK Jaramillo, I tried as you wrote, but what would be an INSERT statement correct?

  -After the code trigger of Jaramillo

  INSERT INTO HF_fishers (first_name, last_name) values ("Jesse", "Owens"); -I have the trigger but he made the mistake of duplicate key.

  INSERT INTO HF_fishers values (hf_fishers_seq.nextval, 'Jesse', "Owens");  -No trigger but get key duplicated,.

  INSERT INTO HF_fishers VALUES(:NEW_contact_id,'Jesse','Ownes'); -works without the trigger but the "get links" dialog box appears. So not much 'automatic' on this issue,.

  My mistake.  Here is the modified version of the trigger. I removed the CONDITIONAL clause and comes to be a part of the body of the trigger.

  So, I created the table, the sequence, the relaxation and ran the first two insert statements and it worked fine.  The third one you have invites SQL + or any tool you use to enter a value if she sees the ":" colon as a variable binding.  Colon only works in a trigger without asking for confirmation.

  Here is the code and my exit I ran home

  DROP TABLE hf_fishers CASCADE CONSTRAINTS PURGE;
  DROP SEQUENCE hf_fishers_seq;
  
  CREATE TABLE hf_fishers
  (
  contact_id   INTEGER NOT NULL
  ,first_name   VARCHAR(25)
  ,last_name    VARCHAR(35)
  ,PRIMARY KEY (contact_id)
  );
  
  CREATE SEQUENCE hf_fishers_seq;
  
  CREATE OR REPLACE TRIGGER hf_fishers_seq_trigger
     BEFORE INSERT
     ON hf_fishers
     FOR EACH ROW
  BEGIN
  
     IF(:NEW.contact_id IS NULL) THEN
        :NEW.contact_id := hf_fishers_seq.NEXTVAL;
     END IF;
  
  END hf_fishers_seq_trigger;
  
  INSERT INTO hf_fishers(first_name, last_name)
       VALUES ('Jesse', 'Owens');  -- Works with the trigger
  
  INSERT INTO hf_fishers
       VALUES (hf_fishers_seq.nextval, 'Jesse', 'Owens');  --Works without using the trigger body code.
  
  SELECT *
    FROM hf_fishers;
  
  COMMIT;
  

  The output

  Deleted table.

  Elapsed time: 00:00:00.05

  Sequence has fallen.

  Elapsed time: 00:00:00.02

  Table created.

  Elapsed time: 00:00:00.03

  Order of creation.

  Elapsed time: 00:00:00.02

  Trigger created.

  Elapsed time: 00:00:01.05

  1 line of creation.

  Elapsed time: 00:00:00.04

  1 line of creation.

  Elapsed time: 00:00:00.01

  CONTACT_ID FIRST NAME LAST NAME

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

  1 Jesse Owens

  2 Jesse Owens

  2 selected lines.

  Elapsed time: 00:00:00.04

  Validation complete.

  Elapsed time: 00:00:00.01

• Bad generation of DDL for indexes primary key partitioned - lost partitions

  Hello
  
  In our design of the database, we want to divide some tables and their indexes. The partition type is hash indexes must be local, also divided No problem affecting storage of the table partitions. Also no aucun probleme problem with the index partitions, not included the primary key.
  
  Our problem appears in the generation of DDL: partitions of tables and indexes are generated fine except the primary partitions it shows key - phrase-'alter table' primary key as if it was not partitioned.
  
  Apparently indexes primary keys must be generated as the other indices, is it not?
  
  Thanks in advance,
  
  Bernat Fabregat
  
  Published by: Berni 11/29/2010 12:37

  Hello Bernat,

  for local partitioning, you need to create indexes separated on column PK (if you do not already). Set partitioning for this index, and then in the dialog box for the primary key in the physical model:
  (1) in the 'Général' tab, clause "with the help of the index' - select 'by the name of the index.
  (2) in tab 'using Index' - 'Existing Index' drop-down list box - select defined index.

  Global partitioning can be created directly on the primary key in the physical model.

  Philippe

• How to change the type of source for a primary key on a form?

  Hello
  
  When creating a form, I put the source type for the primary key of an existing sequence.
  
  Now, I want to change the source of a trigger.
  
  Can anyone suggest how do?
  
  Thanks in advance,
  Annie

  Annie:

  Set the trigger and then delete the process of the page named «Get PK»

  CITY

• DB sequence for the primary key

  Hello

  I have Table of key primary we use DB sequence in the database itself, for example if start a line (using sql client) DB without primary key sequence will do it for me, because of this trigger.

  (1) my doubt is if I generate A EO off this table I need to explicitly set db sequence for this attribute as this or no need to do this sequence bz DB does good for me!

  (new oracle.jbo.server.SequenceImpl("SEQ_NAME",adf.object.getDBTransaction())).getSequenceNumber()
  
  
  
  

  No, you use a db trigger all what you need to do is to define the type of the attribute DBSeqence. Then the framework will assign a negative value for the PK, which can and will be used as K until you commit the transaction. During this time the bed frame now generated correct sequence of relaxation and rights holders to PK all negative values of the line (and it's child row).

  Don't forget to check DBSequence attributes must have "Refresh on insert" together that it triggers the correct PK is read from the database after insertion.

  Do not use ' (new oracle.jbo.server.SequenceImpl ("SEQ_NAME", adf.object.getDBTransaction ()) .getSequenceNumber () ' attribute is the PK you use triggers to generate the sequence.

  Timo

• Factor of clustering for the primary key Index

  Hi all
  
  I have cretead a new table with 1.7 million records with an index of primary key on ID (NUMBER)
  Number of blocks used is arnd 57 K.
  
  Factor value of clustering on the primary key index is 1.6 million.
  
  Could you please suggest what can be the reason for such a clustering factor high for the new table.
  
  
  Thank you
  Ash N.

  Google is your friend:
  http://www.dbasupport.com/forums/archive/index.php/t-38893.html
  http://asktom.Oracle.com/pls/asktom/f?p=100:11:0:P11_QUESTION_ID:1032431852141
  http://hemantoracledba.blogspot.com.es/2008/01/impact-of-clustering-factor.html

• Should I create primary keys or foreign first?

  I'm new to sql and a student please bear with me.
  
  I create a script so that when I run a sequence of tables are created. I created all of my fine tables but now I want to add the primary and foreign keys. I tried to do all this at once before but had problems, my idea was to use alter table instructions and add the constraints of key primary and foreign in this way.
  
  The thing I want to know is what to build first? Should I do any foreign keys and primary keys or visa versa? Or can I do them sequentially and connect relationships between the tables that I will. Thanks in advance!

  Hello

  One thing to remember as a student is to apply logic to the task at hand. In this case, to create a foreign key, it must refer to a primary key in its definition as well so the KP must exist first. What I tend to do is to break down as statements in separate files or sections separate scripts and execute it in a logical order. IE Tables first, and then of PK and UK followed by the FK etc.. I also prefer to create offline rather than constraints in create table statements.

  Hope this helps

  André

• Creating primary key in online?

  My database is oracle11g. My environment is 24 * 7.
  
  I know that we can create indexes online. But here it is the primary key. I do below things... These tasks must not lock the table.
  
  1 remove the primary key
  2. recreate the primary key
  3 remove the normal index
  4 re-create the normal index.
  
  Task 4 can be done online. I'm afraid the rest of the task.
  
  1. no oracle locks the table while dropping the PK?
  2. how to recreate the PK online?
  3 oracle locks the table while removing the index?
  
  Please let me know.

  Dear Shrinika,

  If you read the ticket of Richard, you will find the answer to your question.

  There is an improvement over 11 g and concurrent transactions are not owned by a lock of index.

  Index lock will wait only active transaction that was created before the create index command.

  Ogan

• Create primary key also Select

  In Oracle, how we specify a primary key in a creation like the select statement? I ran a simple statement, but received the error ORA-00933. What I have to do two steps with created first table and alter the table to add the key?
  
  Thank you
  
  
  
  CREATE TABLE Test as
  SELECT
  *
  SOURCE one
  WHERE a.sys = 100
  PK1 CONSTRAINT PRIMARY KEY (account ID)

  SQL>  create table t (a primary key) as select 1 from dual
  /
  Table created.
  

• Online syntax to create Foreign key with Alter Table statement

  I am a pretty meticulous reader. That being said, from the 4 texts that I read to start to learn SQL, I do not remember and do more that probably not, find a syntax online for the creation of a CF with the statement alter table.

  Just something I thought while I was reading.

  Is there a such syntax?

  And if so someone can give me direction on my code?

  ALTER table emp4 change employee_id key foreign employees of references (employe_id);

  It gives me the option error invalid alter table.

  Any idea would be appreciated.

  Thank you.

  rp0428 wrote:

  A foreign key is a constraint, you must use ADD CONSTRAINT.

  Thare is more than one way to skin a cat:

  SQL > create table tbl (id number, name varchar2 (10))
  2.

  Table created.

  SQL > alter table tbl adds (foreign key references emp (empno))
  2.

  Modified table.

  SQL > select constraint_name,.
  2 constraint_type
  3 from user_constraints
  4 where table_name = 'TBL '.
  5.

  CONSTRAINT_NAME C
  ------------------------------ -
  SYS_C0021920 R

  SQL > drop table tbl purge
  2.

  Deleted table.

  SQL > create table tbl (id number, name varchar2 (10))
  2.

  Table created.

  SQL > alter table tbl change (foreign key references emp (empno))
  2.

  Modified table.

  SQL > select constraint_name,.
  2 constraint_type
  3 from user_constraints
  4 where table_name = 'TBL '.
  5.

  CONSTRAINT_NAME C
  ------------------------------ -
  SYS_C0021921 R

  SQL >

  SY.

• Creating primary key based on the Date

  Hi all
  I am trying to create a unique ID for each record, based on the date that the record is created. Example, if the folder is created today, I want to the key is 20101130XX where XX is a sequential list of numbers e.g. 01, 02, 03 etc... in the case where more than one person creates a record today.
  
  If 3 people created record yesterday their unique ID would be
  
  2010112900
  2010112901
  2010112902
  
  and then comes the midnight and someone creates a new record, that it would be
  
  2010113000
  
  This is intended to give each record with a unique ID that will be used to reference the ticket.
  
  We are already using the date format, but currently users have to manually enter the id and who can create errors such as 2011112900 when it should have been 2010112900 then instead of 2010 they put 2011
  
  I'm not sure how to create a trigger to generate this type of unique identification number and would appreciate any help
  
  Thanks in advance
  
  Wally

  Never said it was perfect, but then again, it is a rather sticky issue... Reset sequence work would be scheduled to run @ some point... You entered in tables past 24/7? I would say that system could be locked for those 5 minutes sequence is updated, or the table is locked to allow no access while the process is...

  To be honest, that is the question in the design of a key value that is dependent on outside data, as apposed to a surrogate key, which is generated System... Again, you could have at ONCE and have the surrogate for a key key REAL primary and date + sequence as a secondary key for the use of basic unit of carbon...

  Thank you

  Tony Miller
  Webster, TX

  If vegetable oil is made from vegetables, then what is baby oil?

• What is the syntax for creating a global temporary table using a select query

  HII
  I create a global temporary table using a select query... How to speak of "on commit preserve rows ' who?
  
  
  create a table temporary global t1 select * from trn_ordbase on the lines of commit preserve;
  
  but this is an invalid syntax, then how to talk on commit preserve rows in this? If I don't mention, by default its recital on the validation of deleted rows.
  
  Please help me on this problem.

  create global temporary table t1 on commit preserve rows
    2  as select * from dual;
  
  Table created.
  
  TUBBY_TUBBZ?
  

• How to specify the tablespace for a India primary key in create table statement

  How to specify the storage space for a primary key index in a create table statement?
  Does the following statement is true?

  CREATE TABLE 'GPS'||TO_CHAR(SYSDATE+1,'YYYYMMDD')
              ("ID" NUMBER(10,0) NOT NULL ENABLE, 
              "IP_ADDRESS" VARCHAR2(32 BYTE), 
              "EQUIPMENT_ID" VARCHAR2(32 BYTE), 
              "PACKET_DT" DATE, 
              "PACKET" VARCHAR2(255 BYTE), 
              "PACKET_FORMAT" VARCHAR2(32 BYTE), 
              "SAVED_TIME" DATE DEFAULT CURRENT_TIMESTAMP, 
               CONSTRAINT "UDP_LOG_PK" PRIMARY KEY ("ID") TABLESPACE "INDEX_DATA"
               )            
               TABLESPACE "SBM_DATA";   

  Thank you
  
  Published by: qkc November 9, 2009 13:42

  As orafad noted, you can use the documentation using ESCALATION clause, i.e.

  SQL> ed
  Wrote file afiedt.buf
  
    1  CREATE TABLE GPS
    2              ("ID" NUMBER(10,0) NOT NULL ENABLE,
    3              "IP_ADDRESS" VARCHAR2(32 BYTE),
    4              "EQUIPMENT_ID" VARCHAR2(32 BYTE),
    5              "PACKET_DT" DATE,
    6              "PACKET" VARCHAR2(255 BYTE),
    7              "PACKET_FORMAT" VARCHAR2(32 BYTE),
    8              "SAVED_TIME" DATE DEFAULT CURRENT_TIMESTAMP,
    9               CONSTRAINT "UDP_LOG_PK" PRIMARY KEY ("ID") USING INDEX TABLESP
  ACE "USERS"
   10               )
   11*              TABLESPACE "USERS"
  SQL> /
  
  Table created.
  

  Justin

• How to refer to the primary key column of newly inserted rows of tabular form

  Hello

  I use APEX 4.2.0.00.27 with Oracle DB 11.2.0.3.0.

  I work with a tabular presentation wizard-created for insert and update a table using the integrated SRM process (sequence 10).  I'm trying to use a process of anonymous block of PL/SQL (sequence 30) to make another manipulation of table after the records were inserted or updated.  The manual process is associated with my tabular form and I use the variables of name of column binding in my program block.

  My (rsn_test) table has 3 columns: test_id (number), test_nbr (number), test_id2 (number).  Test_id column is identified as the primary key and the type of the source already exists a sequence rsn_test_seq.  Column test_id2 gets its default value 0 to a hidden page element.

  I would use my manual process for updating the value of the test_id2 column.  If it's 0 then I want to put the value of the column test_id.  If it is any other value, then it must remain at this value.  My logic works very well for an existing line, but I'm running into a problem with the newly added lines.  The new lines get inserted, but the test_id2 column remains the default value 0.  I can tell the debugger that the SRM process is triggered first and inserts the line, then my manual dealing with fires.  The problem seems to be that the connection variable: TEST_ID for the primary key column remains NULL after insertion.  I don't know how to get the value of the column test_id of my newly created line to use in my PL/SQL block to my update.

  Process of PL/SQL:

  DECLARE
  BEGIN
     :P7_SHOW := NULL;
     :P7_SHOW := NVL(:TEST_ID2,555) || ' and ' || NVL(:TEST_ID,787) || ' and ' || NVL(:TEST_NBR,9999);
     IF :TEST_ID2 = 0 AND :TEST_ID IS NOT NULL THEN
        UPDATE rsn_test
           SET test_id2 = :TEST_ID
         WHERE test_id = :TEST_ID;
     ELSE
        :TEST_ID2 := :TEST_ID2;
     END IF;
  END;
  
  

  Excerpt from the debugger:

  0.01625 0.00010 Processes - point: ON_SUBMIT_BEFORE_COMPUTATION
  0.01635 0.00008 Branch point: Before Computation
  0.01643 0.00003 Process point: AFTER_SUBMIT
  0.01646 0.00022 Tabs: Perform Branching for Tab Requests
  0.01668 0.00008 Branch point: Before Validation
  0.01676 0.00024 Validations:
  0.01700 0.00135 Perform basic and predefined validations:
  0.01835 0.00020 Perform custom validations:
  0.01855 0.00049 ...Validation "TEST_NBR must be numeric" - Type: ITEM_IS_NUMERIC
  0.01904 0.00007 ......Skip for row 1 because row hasn't changed
  0.01911 0.00016 ......Skip for row 2 because row hasn't changed
  0.01927 0.00012 ...Validation "TEST_ID2 must be numeric" - Type: ITEM_IS_NUMERIC
  0.01939 0.00007 ......Skip for row 1 because row hasn't changed
  0.01945 0.00018 ......Skip for row 2 because row hasn't changed
  0.01964 0.00005 Branch point: Before Processing
  0.01968 0.00004 Processes - point: AFTER_SUBMIT
  0.01972 0.00588 ...Process "ApplyMRU" - Type: MULTI_ROW_UPDATE
  0.02560 0.00154 ...Execute Statement: declare function x return varchar2 is begin begin for c1 in ( select "RSN_TEST_SEQ".nextval pk from sys.dual ) loop return c1.pk; end loop; end; return null; end; begin wwv_flow.g_value := x; end;
  0.02714 0.00140 ......Row 3: insert into "APPPCSRSN"."RSN_TEST" ( "TEST_ID", "TEST_NBR", "TEST_ID2") values ( :b1, :b2, :b3)
  0.02854 0.00011 ...Process "ApplyMRD" - Type: MULTI_ROW_DELETE
  0.02865 0.00004 ......Skip because condition or authorization evaluates to FALSE
  0.02869 0.00015 ...Process "Process Submit" - Type: PLSQL
  0.02884 0.00007 ......Skip for row 1 because row hasn't changed
  0.02891 0.00012 ......Skip for row 2 because row hasn't changed
  0.02903 0.00012 ......Process row 3
  0.02915 0.00429 ...Execute Statement: begin DECLARE BEGIN :P7_SHOW := NULL; :P7_SHOW := NVL(:TEST_ID2,555) || ' and ' || NVL(:TEST_ID,787) || ' and ' || NVL(:TEST_NBR,9999); IF :TEST_ID2 = 0 AND :TEST_ID IS NOT NULL THEN UPDATE rsn_test SET test_id2 = :TEST_NBR WHERE test_id = :TEST_ID; ELSE :TEST_ID2 := :TEST_ID2; END IF; END; end;
  0.03344 0.00013 ...Session State: Saved Item "P7_SHOW" New Value="0 and 787 and 1300"
  0.03356 0.00004 Branch point: After Processing
  0.03360 0.00048 ...Evaluating Branch: "AFTER_PROCESSING" Type: REDIRECT_URL Button: (No Button Pressed) Condition: (Unconditional)
  0.03407 0.00013 Redirecting to f?p=290:7:8717971109610:::::&success_msg=0%20row(s)%20updated%2C%201%20row(s)%20inserted.Success%2FEBD244168556408CBA714E3974918C09%2F
  0.03420 0.00012 Stop APEX Engine detected
  0.03432 0.00007 Stop APEX Engine detected
  0.03439 - Final commit
  
  

  Any suggestions?

  I have run tests on

  https://apex.Oracle.com/pls/apex/f?p=83488:1 demo/demo

  to see your problem.

  I have 2 solution for your problem.
  I add trial NOT tabular just usual block of PL/SQL

  	BEGIN
  	I'm IN (SELECT TEST_ID FROM RSN_TEST WHERE TEST_ID2 = 0)
  	LOOP
  	UPDATE RSN_TEST
  	SET test_id2 = TEST_ID
  	WHERE test_id = i.TEST_ID;
  	END LOOP;
  	END;

  and works very well, you can see in the sample.

  The other solution is to show new generated TEST_ID

  Adding a sequence as a default value for a column in a table field

  And to execute your procedure.

  I get how is with the good luck of time.

  By

• 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