Comments on: How to Create Auto Increment Columns in Oracle

By: SAMEER

SAMEER — Wed, 22 Jun 2011 09:31:37 +0000

create or replace trigger tbl_Missing_trigger
before insert
on test
referencing new as new
for each row
begin
select tbl_MissingStatus_sequence.nextval into :new.id from dual;
end;

WHEN I RUN THIS COMMAND LINES
A BOX FOR THE VARIABLES APPEARS
TO GIVE THE NAME, TYPE AND THE VALUE
AND EVEN AFTER I GIVE THESE CONSTRAINS AN ERROR FOLLOWS AS

ORA-01036: illegal variable name/number

WHAT SHALL I DO???

By: Mariyappan.c

Mariyappan.c — Fri, 20 May 2011 06:26:51 +0000

create sequence TEST_SEQ minvalue 1 maxvalue 9999999999999999999
INCREMENT BY 2 START WITH 1000031624 CACHE 20 NOORDER NOCYCLE ;

create or replace function F return number deterministic as
a number;
begin
select TEST_SEQ.NEXTVAL into a from DUAL;
return a;
end;

drop table Z

create table Z( name varchar2(10), PRI number generated always as(f()) VIRTUAL );

insert into Z(name)values(‘asasa’);
insert into Z(name)values(‘asasa’);
insert into z(name)values(‘asasa’);
insert into z(name)values(‘asasa’);

create or replace function F return number as
a number;
begin
select TEST_SEQ.NEXTVAL into a from DUAL;
return a;
end;

select * from z

insert into Z(name)values(‘asasa’);
insert into Z(name)values(‘asasa’);
insert into Z(name)values(‘asasa’);
insert into z(name)values(‘asasa’);

commit;

By: Mariyappan.c

Mariyappan.c — Fri, 20 May 2011 05:42:44 +0000

Auto increment of the column in 11G without any trigger only applicable in 11g

CREATE SEQUENCE “CM_4_0″.”TEST_SEQ” MINVALUE 1 MAXVALUE 9999999999999999999999999999 INCREMENT BY 2 START WITH 1000031624 CACHE 20 NOORDER NOCYCLE ;

create or replace function F return number as
a number;
begin return
select TEST_SEQ.NEXTVAL into a from DUAL;
return a;
end;

drop table Z

create table Z( name varchar2(10), PRI number generated always as(f()) VIRTUAL );

insert into z(name)values(‘asasa’);
insert into Z(name)values(‘asasa’);
insert into z(name)values(‘asasa’);
insert into z(name)values(‘asasa’);

commit;

By: Gautam

Gautam — Thu, 03 Feb 2011 10:12:13 +0000

thanks alot for this solution.
I tried on many sites to find out the exact solution but no body gave answer related to “oracle xe”. so once again thanks….

Gautam jangra
noida sec 62

By: kranthi

kranthi — Wed, 18 Aug 2010 17:55:38 +0000

i have created sample, sequence and trigger. but when i tried to insert values exactly like you above i got error.

ORA-01400: cannot insert NULL into (“KRANTHI”.”SIMPLE”.”ID”)

what could be the problem

By: anirban sengupta

anirban sengupta — Wed, 16 Jun 2010 18:43:40 +0000

i have face a problem that is how the user will get autogenerated id number on this form which should be shown in a label or list_item after submission of some of his personnel data like name,sex, city,adddress,fax no, etc…….through the front end i.e oracle form….

pl sir give full details about my problem…..
waiting for your favourable reply……..

By: Ahmed

Ahmed — Sat, 15 May 2010 20:01:43 +0000

Thank you dear….really very informative…

What if i want to generate nos. in these sequences
10-01
10-02
10-03
10-04…. where 10 is year and 01,02,03,04 etc are nos.

if year changes from 10 to 11 (i.e. 2010 to 2011) nos. also changes i.e.
11-01
11-02
11-03
11-04
Please help me out in this

Thank you very much in advance

By: farid

farid — Tue, 27 Apr 2010 17:56:41 +0000

thans for d` great tutorial….

By: Shankar Ganesh

Shankar Ganesh — Thu, 18 Mar 2010 09:38:48 +0000

Hi,
i need to create autogenerate column after inserting data. That is after insert trigger. Pls send the sample code

By: Md. Hasanuzzaman

Md. Hasanuzzaman — Mon, 02 Nov 2009 03:02:36 +0000

I have this table :
CREATE TABLE PARTY_INFORMATION (
PARTY_CODE VARCHAR2 (10) NOT NULL,
PARTY_NAME VARCHAR2 (100) NOT NULL,
ADDRESS VARCHAR2 (200),
PHONE VARCHAR2 (50),
FAX VARCHAR2 (50),
EMAIL VARCHAR2 (100),
WEB VARCHAR2 (100),
CONTACT_PERSON VARCHAR2 (100),
REMARKS VARCHAR2 (200),
CONSTRAINT CONS_PARTY_NAME
UNIQUE (PARTY_NAME),
PRIMARY KEY ( PARTY_CODE ) ) ;

Here PARTY_CODE format is P1001 …P1010 etc…

i want to increment the party_code automatically while insert new row.

please help me.

thanks in advance.