Auto increment trigger

I have a table with an index and two other columns. The first column is called index.
What I would like to do is to auto increment the index column on every insertion. I have read some of the documentation and can't make sense of what I am trying to do. Please point me to an example.
WBR

I tried these 3 statements to create a auto update column:
CREATE TABLE TIME_TABLE (
RECORD_NUM INTEGER NOT NULL,
DATE_FIELD DATE,
DESCRIPTION VARCHAR(1000));
CREATE SEQUENCE TIME_SEQ START WITH 1 INCREMENT BY 1;
CREATE OR REPLACE
TRIGGER TIME_TRIGGER BEFORE INSERT ON TIME_TABLE
FOR EACH ROW
BEGIN
SELECT TIME_SEQ.NEXTVAL INTO :NEW.RECORD_NUM FROM DUAL;
END
When I execute an insert statement I get the following error:
An error was encountered performing the requested operation:
ORA-04098: the trigger TIME.TIME_TRIGGER is invalid and failed re-validation.
So my question is what is wrong with the three statements. I would appreciate some help.

Similar Messages

Not authorised to have auto increment trigger on server

Hello all. I need a few triggers set up, I have no problems setting up sequences and "before insert" triggers on my home PC setup but on the live server where I study I do not have the authority.
I got around this before by using Forms so I set the trigger at Form level.
I am developing a DB system that will at some stage in the future use Forms, but for now it will use HTML forms via a web browser.
I need to have the primary key for user accessible tables to be auto incremented (on the server where I study), but how can get around the authority issue ??
Any ideas are extremely welcome !!

Hello all - yeah I am on a course. I too have no idea why they will not allow the students to create triggers at table level.
The 1st system I developed at home I had auto incremented primary keys. It was using Oracle Forms as the front end. Because I am the admin on my home setup I didn't have any problems.
When I went to the course site to implement exactly what I had at home (which worked 100% properly) inserting data via the forms was not working. I had no idea why. the lecturer guy took a look at my code and told me its because of the trigger, I do not have authority to create triggers on the server.
"create or replace trigger cust_trg
before insert on customer
for each row
begin
select cust_seq.nextval into :new.cust_id
from dual;
end;"
The above code works fine on my home PC. I used Pre Insert triggers on the block on the Form instead to get around the problem (I presumed it was because they wanted us to learn Forms more thoroughly).
This next project does not involve forms but they will not change my access rights so I don't have a clue as to how to get an auto incremented primary key whilst using a HTML form.
Kevin

AUTO Increment on TABLE or TRIGGER

I have a table that I created. I want the first column in the table to auto increment. Some of the examples I have seen create a sequence, and then do the update on a trigger?
Is is possible to just start with 1 and increment by one when something is inserted into the table in the CREATE or ALTER Table syntax?
Or Do I have to create a sequence, and trigger for this?

I have already created a trigger for this table. I am doing an insert.
IF UPDATE THEN
INSERT INTO EQUIPMENT_USER_DATA_AUDIT (
    equipment_id,
    old_cpe_status,
    new_cpe_status,
    cpe_status_changed,
    old_ne_status,
    new_ne_status,
    ne_status_changed,
    date_modified,
    modifiers_name)
VALUES (
    :new.equipment_id,
    :old.cpe_status,
    :new.cpe_status,
    (CASE WHEN :old.cpe_status = :new.cpe_status
           THEN 'N'
           ELSE 'Y'
     END),
    :old.ne_status,
    :new.ne_status,
    (CASE WHEN :old.ne_status = :new.ne_status
           THEN 'N'
           ELSE 'Y'
     END),
    SYSDATE,
    SYS_CONTEXT ('USERENV','CURRENT_SCHEMA'));
   END IF;Do I need to declare the first column in my insert? which is named seq_id?

Trigger Bad Bind Value Auto Increment

I am new to the Oracle world and am trying to make the switch from MySQL so my apologies if this seems like a silly question.
I am trying to figure out what is wrong with my trigger code. Basically , I am trying to create an auto-increment solution using some example code I found on the Internet.
I have a fairly simple table structure:
CREATE TABLE "CIMS"."computerSoftware"
( "computerSoftware_id" NUMBER(11,0),
"cid" NUMBER(11,0) DEFAULT 0 NOT NULL ENABLE,
"publisher" VARCHAR2(100 CHAR) DEFAULT NULL,
"name" VARCHAR2(100 CHAR) DEFAULT NULL,
"version" VARCHAR2(100 CHAR) DEFAULT NULL,
"serialNumber" VARCHAR2(100 CHAR) DEFAULT NULL,
"unlimited" NUMBER(4,0) DEFAULT 0,
"copies" NUMBER(9,0) DEFAULT 1 NOT NULL ENABLE,
"master" NUMBER(4,0) DEFAULT 0,
PRIMARY KEY ("computerSoftware_id")
My Trigger looks like this:
CREATE OR REPLACE TRIGGER "CIMS"."TR_CompSoftware_ID"
BEFORE INSERT ON CIMS."computerSoftware"
REFERENCING OLD AS OLD NEW AS NEW
FOR EACH ROW
BEGIN
IF (:new.computerSoftware_id IS NULL) then
SELECT S_CompSoftware_ID.NEXTVAL
INTO :new.computerSoftware_id
FROM dual;
end IF;
END;
And finally, here is my sequence:
CREATE SEQUENCE "CIMS"."S_CompSoftware_ID" MINVALUE 1
MAXVALUE 999999999999999999999999999 INCREMENT BY 1 START WITH 1 CACHE 10 NOORDER NOCYCLE
When I try to save the trigger I receive the following error:
PLS-00049: bad bind variable 'NEW.COMPUTERSOFTWARE_ID'
Any help is much appreciated!
Tom

And, this is the way - you can rectify this problem ->
satyaki>
satyaki>drop table "computerSoftware";
Table dropped.
Elapsed: 00:00:00.92
satyaki>
satyaki>CREATE TABLE computerSoftware
2 (
3      computerSoftware_id NUMBER(11,0),
4      cid NUMBER(11,0) DEFAULT 0 NOT NULL ENABLE,
5      publisher VARCHAR2(100 CHAR) DEFAULT NULL,
6      name VARCHAR2(100 CHAR) DEFAULT NULL,
7      version VARCHAR2(100 CHAR) DEFAULT NULL,
8      serialNumber VARCHAR2(100 CHAR) DEFAULT NULL,
9      un_limited NUMBER(4,0) DEFAULT 0, -- Need to change the name of your column due to use of reserve word
10      copies NUMBER(9,0) DEFAULT 1 NOT NULL ENABLE,
11      master NUMBER(4,0) DEFAULT 0,
12     constraints pk_cid PRIMARY KEY (computerSoftware_id)
13   );
Table created.
Elapsed: 00:00:00.20
satyaki>
satyaki>
satyaki>CREATE SEQUENCE S_CompSoftware_ID MINVALUE 1
2 MAXVALUE 999999999999999999999999999 INCREMENT BY 1 START WITH 1 CACHE 10 NOORDER NOCYCLE;
Sequence created.
Elapsed: 00:00:00.05
satyaki>
satyaki>
satyaki>CREATE OR REPLACE TRIGGER TR_CompSoftware_ID
2 BEFORE INSERT ON computerSoftware
3 REFERENCING OLD AS OLD NEW AS NEW
4 FOR EACH ROW
5 BEGIN
6    IF (:new.computerSoftware_id IS NULL) then
7        SELECT S_CompSoftware_ID.NEXTVAL
8        INTO :new.computerSoftware_id
9        FROM dual;
10    end IF;
11 END;
12 /
Trigger created.
Elapsed: 00:00:00.98
satyaki>
satyaki>insert into computerSoftware(cid,publisher,name,version,serialNumber,un_limited,copies,master)
2     values(1,'ABP','SR','1.0.0.1','1.4.3',88,7,9);
1 row created.
Elapsed: 00:00:00.14
satyaki>
satyaki>commit;
Commit complete.
Elapsed: 00:00:00.05
satyaki>
satyaki>
satyaki>select * from computerSoftware;
COMPUTERSOFTWARE_ID        CID PUBLISHER                                                                                            NAME                                                                                                 VERSION
                  1          1 ABP                                                                                                  SR                                                                                                   1.0.0.1
Elapsed: 00:00:00.05
satyaki>Got me?
Regards.
Satyaki De.

Add auto increment column to trigger

I want to add auto increment column to after insert trigger. so how can I do that?

this is my query.
Create Sequence Up_Seq
Start With 1
Increment By 1
nomaxvalue;
Create Or Replace Trigger Upf_Trig
After Insert On members
Referencing New As New
For Each Row
Begin
Insert Into Upf_Kgl(Member_Id,Mem_Name,Nic,Division)
Values (Up_Seq.Nextval
*,:New.Mem_Name*
*,:New.Nic*
*,:New.Division);*
end upf_trig;
It's worked. but when inserting values to members table, there is an error.
this is the error
Error starting at line 21 in command:
Insert Into Members(Mem_Name,Nic,Full_Name,Age,Sex,Mar_State,Birth_Date,Division,Religon)
Values(
*'IA Nawagamuwa'*
*,'883324356V'*
*,'Isuru Aravinda Nawagamuwa'*
*,'22'*
*,'Male'*
*,'Single'*
*,'21-Dec-88'*
*,'kgl'*
*,'Buddhist')*
Error report:
SQL Error: ORA-00001: unique constraint (SYSTEM.SYS_C004077) violated
ORA-06512: at "SYSTEM.UPF_TRIG", line 2
ORA-04088: error during execution of trigger 'SYSTEM.UPF_TRIG'
*00001. 00000 - "unique constraint (%s.%s) violated"*
**Cause: An UPDATE or INSERT statement attempted to insert a duplicate key.*
For Trusted Oracle configured in DBMS MAC mode, you may see
this message if a duplicate entry exists at a different level.
**Action: Either remove the unique restriction or do not insert the key.*

How can i create an auto increment column

Hello Everyone
We are working on an EAM package which has an auto number facility but that is not meeting our requirement because some 10s and 100s of numbers keep on jumping based on the number of records the child table has.Means every record in my parent table will have some child records in another table which we call it a child table.The number of numbers that will be jumped each time will depend on the number of child records it has. Now we want to create a new column and generate a sequential unique number in my parent table with out linking it to its child table and use this number as a reference number. And we cant do that through our package customization. Can any one guide us if we can meet our requirement through oracle triggers or so.
Thanks and Regards

Hi,
For "Auto-Increment" functionality - you can use a combination of a sequence and a trigger like so:
create table roles ( role_id INT
                   , role_name VARCHAR2(30) NOT NULL
                   , creation_date DATE DEFAULT SYSDATE NOT NULL
                   , role_description VARCHAR2(255)
                   , CONSTRAINT roles_pk PRIMARY KEY (role_id)
                   , CONSTRAINT roles_uk1 UNIQUE (role_name)
create sequence role_id_seq
start with 1
increment by 1
nocache;
CREATE OR REPLACE TRIGGER roles_pk_trig
BEFORE
insert on roles
for each row
begin
IF :new.role_id IS NULL THEN
   SELECT role_id_seq.NEXTVAL
   INTO :new.role_id
   FROM dual;
END IF;
end;
/Now any insert which leaves the "ROLE_ID" column NULL will have an auto-incremented value put in for that column. This is similar to an "Autonumber" column in Access.
Hope this helps...
Take care.

Auto-increment identity column through procedure in oracle 10g on windows

Hi,
I need identity primary key which should be auto increment before while inserting data into table.
for this i had use sequence and then trigger to increment it.
but now i need to increment it in Procedure, while my procedure is having code to insert data in same table which has primary key

Hi,
SNEHA RK wrote:
Hi,
I need identity primary key which should be auto increment before while inserting data into table.
for this i had use sequence and then trigger to increment it.Right. Some database products have auto-increment columns, and they are really handy. Unfortunately, Oracle does not have auto-increment columns. A sequence is an auto-increment object, and it's the right way to automatically generate unique identifiers, but you need to explicity reference the sequence, either in you DML statements, or in a trigger that will automatically fire before a DML statement.
but now i need to increment it in Procedure, while my procedure is having code to insert data in same table which has primary keyAre you saying that you need to increment the sequence, completely aside from INSERTing into the table?
If so, just reference sequence_name.NEXTVAL wherever you want to. In PL/SQL, you can say
SELECT sequence_name.NEXTVAL
INTO number_variable
FROM dual;This works in any version of Oracle, but starting in Oracle 11, you also have the option of referencing te sequence without using dual, or any other table.
I hope this answers your question.
If not, post a complete script that people can run to re-create the problem and test their ideas.
For example:
-- Here are the table and the seqauence that I created:
CREATE TABLE table_x ...
CREATE SEQUENCE ...
-- Here is the BEFORE INSERT trigger I wrote:
CREATE OR REPLACE TRIGGER ...
-- The trigger works exactly how I want it to in statements like this:
INSERT INTO table_x ...
-- So there are no problems (that I know of) with anything up to this point.
-- Now I want to use the same sequence to ...
-- so that when I execute a statement like this
-- then the next time I add a new row to the orginal table, like this
INSERT INTO table_x ...
-- then the contents of table_x should be ... because ...

Bug in auto-increment for MSSQL

I am using kodo 3.1.0 and have a scenario where I am persisting a new object
that uses an auto-increment PK and the database has an on-insert trigger
that inserts a log into an audit table.
At the database level, what is happing is:
1) kodo calls "insert into t_timeentry (........)
2) the database calls "insert into t_timeentrylog (......)
3) kodo calls @@IDENTITY to get the ID to associate with the new timeentry.
The problem is, @@IDENTITY is getting back the last identity used,
regardless of table, so it is returning the id inserted into t_timeentrylog
and kodo thinks that's the id of the timeentry. In the end, I get a
optimistic lock exception when I try to update the new timeentry because it
is trying to update based on the id of the timeentrylog.
What you need to do is call SCOPE_IDENTITY or IDENT_CURRENT rather than
@@IDENTITY when you get auto-incremented columns. Unfortunately, those
functions only exist in SQL 2000 (maybe 7), so people with SQL6.5 (and maybe
7) are just out luck if they have triggers on inserts.
Is there a work-around for this? It's causing problems throughout my
system.
Nathan

If the query string you want executed to get the last auto-inc value
does not rely on context, you can set it easily with:
kodo.jdbc.DBDictionary: LastGeneratedKeyQuery="<sql>"
If it is more complex, then you'll need to extend
kodo.jdbc.sql.SQLServerDictionary and override the following method:
public long getGeneratedKey (kodo.jdbc.schema.Column col,
Connection conn)
throws SQLException
// if you need the col or table name:
String colName = col.getName ();
String tableName = col.getTable ().getName ();
// execute the necessary SQL to return the last inserted value...
Then you can plug your dictionary into Kodo with:
kodo.jdbc.DBDictionary: your.custom.Dictionary

Using an DB auto-increment feature on a PK

Hi,
I work with an Oracle target DB and I have a trigger which auto-increment the field ID (it's my pk).
In my interface, I map all the fields and let my ID field empty in order to let Oracle filling it.
But when I run the interface, I have this error message at step "insert flow into $ table" :
936 : 42000 : java.sql.SQLException : ORA-00936: expression absente
If I change my PK, it works so I think the issue is there. Can I easily solve this ?
Thanks

Thanks for your answer but didn't work better.
I solved the issue using the IK SQL Control Append in the flow tab and disabling the PK constraint in the check tab. All other options set as default.
I don't know if it's the better solution but it works...

Auto Increment ID Field Table in the Oracle Database (insert new record)

I have been using the MySQL. And the ID field of the database table is AUTO INCREMENT. When I insert a new record into a database table, I can have a statement like:
   public void createThread( String receiver, String sender, String title,
                             String lastPostMemberName, String threadTopic,
                             String threadBody, Timestamp threadCreationDate,
                             Timestamp threadLastPostDate, int threadType,
                             int threadOption, int threadStatus, int threadViewCount,
                             int threadReplyCount, int threadDuration )
                             throws MessageDAOSysExceptionand I do not have to put the ID variable in the above method. The table will give the new record an ID number that is equivalent to the ID number of the last record plus one automatically.
Now, I am inserting a new record into an Oracle database table. I am told that I cannot do what I am used to doing with the MySQL database.
How do I revise the createThread method while I have no idea about what the next sequence number shall be?

I am still very confused; in particular, the Java part. Let me try again.
// This part is for the database table creation
-- Component primary key sequence
CREATE SEQUENCE dhsinfo_page_content_seq
    START WITH 0;
-- Trigger for updating the Component primary key
CREATE OR REPLACE TRIGGER DHSInfoPageContent_INSERT_TRIGGER
    BEFORE INSERT ON DHSInfoPageContent //DHSInfoPageContent is the table name
    FOR EACH ROW WHEN (new.ID IS NULL) // ID is the column name for auto increment
    BEGIN
        SELECT dhsinfo_page_content_seq.Nextval
        INTO :ID
        FROM DUAL;
    END;/I am uncertain what to do with my Java code. (I have been working with the MySQL. Changing to the Oracle makes me very confused.
   public void updateContent( int groupID, String pageName, int componentID,
                              String content, Timestamp contentCreationDate )
                               throws contentDAOSysException
   // The above Java statement does not have a value to insert into the ID column
   // in the DHSInfoPageContent table
      Connection conn = null;
      PreparedStatement stmt = null;
      // what to do with the INSERT INTO below. Note the paramether ID.
      String insertSQL = "INSERT INTO DHSInfoPageContent( ID, GroupID, Name, ComponentID, Content, CreationDate ) VALUES (?, ?, ?, ?, ?, ?)";
      try
         conn = DBConnection.getDBConnection();
         stmt = conn.prepareStatement( insertSQL );
         stmt.setInt( 1, id ); // Is this Java statement redundant?
         stmt.setInt( 2, groupID );
         stmt.setString( 3, pageName );
         stmt.setInt( 4, componentID );
         stmt.setString( 5, content );
         stmt.setTimestamp( 6, contentCreationDate );
         stmt.executeUpdate();
       catch
       finally

Is there a auto-increment data type in Oracle

Is there a auto-increment data type in Oracle ?
How to do it if there is no auto-increment data type in Oracle ?
null

jackie (guest) wrote:
: Is there a auto-increment data type in Oracle ?
: How to do it if there is no auto-increment data type in Oracle
Hi,
I think you need unique ID's, for this purpose you use sequences
in Oracle. Example:
create table xy (
id number,
name varchar2(100)
alter table xy
add constraint xy_pk primary key(id);
create sequence xy_seq start with 1 maxvalue 99999999999;
(there are many other options for create sequence)
create or replace trigger xy_ins_trg
before insert on xy
for each row
begin
select xy_seq.nextval
into :new.id
from dual;
end;
This produces a unique value for the column id at each insert.
Hope this will help.
peter
null

Auto increment numbers in Oracle 8i

Hi all,
How to have an auto increment number as a primary key of a table in Oracel 8i(8.1.7) ?. Is it possible to specify to use a sequence as a column ?
Antony Paul

You can create a BEFORE INSERT trigger that uses the sequence to populate the primary key column. If you are coming from SQL Server, that's the closest approximation to an IDENTITY column.
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

How to insert into table when ID auto increment?

I have a table Employee with EmloyeeID, EmployeeName, Email...
When i design table in database, i created a Sequence and then Trigger for EmployeeID to auto increment.
Now in ADF, actually in my web form: I don't want enter values for EmployeeID to insert into table,
but still error : required for EmployeeID...
how can i do it? Thanks

User,
Always mention your JDev version every time you start a new thread.
Check this out : Andrejus Baranovskis Blog: How To Implement Gapless Sequence in ADF BC
-Arun

Primary key violation exception in auto increment column

Hi All,
I am facing one issue in Multi threaded environment.
I am getting Primary key violation exception in auto increment column. I have a table and the primary key is the auto increment column, and I have a trigger which is populating this column.
5 threads are running and inserting the data in the table and throwing Primary key violation exception randomly.
create table example (
id number not null,
name varchar2(30)
alter table example
add constraint PK1example primary key (id);
create sequence example_id_seq start with 1 increment by 1;
create or replace trigger example_insert
before insert on example
for each row
begin
select example_id_seq.nextval into :new.id from dual;
end;
Any idea how to handle auto increment column(trigger) in Multi threaded environment??
Thanks,

user13566109 wrote:
Thanks All,
Problem was in approach; removed the trigger and placed a seq.nextval in insert query. It has resolved the issue.I very much suspect that that was not the issue.
The trigger would execute for each insertion and the nextval would have been unique for each insertion (that's how sequences work in oracle), so that wouldn't have been causing duplicates.
I suspect, more likely, that you had some other code somewhere that was using another sequence or some other method of generating the keys that was also inserting into the same table, so there was a conflict in the sources of the sequences being generated.
The way you showed you had coded above, was a perfectly normal way to assign primary keys from a sequence, and is not a problem in a multi user/threaded environment.

How to use auto incremented tabe to create a CMP Entity Bean

hi,
I want create a CMP entitybean with an auto incremented table in
Oracel. So I need to know
- how to create a table with an auto-incremented field in oracel and
- how to change the create() method according to that.
I am using Sun studio enterprise for EJB developing.
kaushalya

For auto increment in Oracle you should use Sequence/Trigger combination.
And useful thread from EJB forum:
http://forum.java.sun.com/thread.jspa?forumID=13&threadID=478783

Auto increment trigger

Similar Messages

Maybe you are looking for