Utilizing auto-increment/identity fields for primary key with "application" identity

Is it possible to utilise an auto-increment (identity in MS SQL Server)
field for the primary key field when using "application" identity?

To the best of my knowledge, you cannot use auto-increment. Due to the
differences in the way that identities are generated at the datastore
(upon insert) vs. JDO (upon makePersistent), this feature of SQLServer is
not supported yet.
However, we do provide a variety of other ways of generating identity
which may provide a closer fit to what you want, and
our users may have some experience in solving your problem.
On Tue, 28 Jan 2003 09:56:08 +0000, Sean Ryan wrote:
Is it possible to utilise an auto-increment (identity in MS SQL Server)
field for the primary key field when using "application" identity?--
Stephen Kim
[email protected]
SolarMetric, Inc.
http://www.solarmetric.com

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Agrawal
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iketurner wrote:
I keep getting this error:
com.mysql.jdbc.exceptions.MySQLIntegrityConstraintViolationException: Duplicate entry '02673025561-QA-SLFCA-' for key 'PRIMARY'
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1011)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3491)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3423)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1936)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2060)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2542)
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Auto Increment ID Field Table in the Oracle Database (insert new record)

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Auto increment number field

Hello,
I would like to have a number field to be auto increment. Ho can I do that in Oracle must I use some code for it or can I make the field auto increment by itself.
Thanks

user3311314 wrote:
Hello,
I would like to have a number field to be auto increment. Ho can I do that in Oracle must I use some code for it or can I make the field auto increment by itself.
ThanksIt's a long standing gripe of mine. You must use code, and the appropriate solution is a sequence and a trigger, eg
SASH_CLIENT @ DB10G >create table t(
2      id number not null primary key
3 ,   c1 char(100));
Table created.
SASH_CLIENT @ DB10G >
SASH_CLIENT @ DB10G >create sequence seq_t;
Sequence created
SASH_CLIENT @ DB10G >
SASH_CLIENT @ DB10G >create or replace trigger bir_t
2 before insert on t
3 for each row
4 begin
5 select seq_t.nextval into :new.id from dual;
6 end;
7 /
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1 row created.
SASH_CLIENT @ DB10G >commit;
Commit complete.
SASH_CLIENT @ DB10G >select * from t;
        ID C1
         1 row 1I'd much prefer
create table t (
   id number primary key default seq_t.nextval
, c1 char(100));

Utilizing auto-increment/identity fields for primary key with "application" identity

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