Auto increment sequence

Can I do something like auto increment sequence in planning so that whenever a user adds new asset it takes a number from this sequence.
Thanks,
foksh

Hi,
Create a member called Counter in Accounts.
Increment the value everytime you add an asset and assign the value after update to asset number:
-Make sure member combination for the Counter values is fixed to one combination only
Counter->BegBalance->NoYear->(one member from all dimensions)=Counter->BegBalance->NoYear->(one member from all dimensions)+1;
"Asset Number" = Counter->BegBalance->NoYear->(one member from all dimensions);
Cheers,
Alp

Similar Messages

Auto Increment Sequence Custom Field

Hi All,
I was wondering if it is possible
to have a custom field defined as an auto incrementing sequence number? E.g. Let’s say I go in and create a project for the first time, this field will show the value 1. The next project I go to create, the field shows the value 2 etc. etc.
If possible, how can this be implemented using customization? Can it be done in Project Online? Any help would be greatly appreciated. thank you!

Hi JSimoni1,
You can generate a project unique ID using a webpart, even with Project Online.
Please find below the procedure in EpmExpert blog:
http://epmxperts.wordpress.com/2012/05/21/generate-unique-id-for-project-using-a-webpart/
Note that the code might need some adjustments to stick to your business need.
Hope this helps,
Guillaume Rouyre, MBA, MCP, MCTS |

Create Auto increment sequence number for list view report

Hi All,
Am using BAM 11.1.1.6 version, Have updating list report & wants to create auto increment sequence number at report level. Is it possible to create column at run time in BAM reports.
Please help.
Thanks.

Hi All,
Am using BAM 11.1.1.6 version, Have updating list report & wants to create auto increment sequence number at report level. Is it possible to create column at run time in BAM reports.
Please help.
Thanks.

Auto increment sequence problem

Hi,
Is there any particular thing about 21st record because, when i insert data into same or different table, records start from 21 instead of 1 or where it was finished before.
Example : I leave a table with 3 records. Come back, I insert data into same table then, auto increment starts from 21 not the 4!!!
Thanks
CREATE SEQUENCE FRANC_AUTOINC_SEQ
START WITH 1
INCREMENT BY 1
NOMAXVALUE;
CREATE TRIGGER FRANC_AUTOINC_TRG
BEFORE INSERT ON FRANCHISE
FOR EACH ROW
BEGIN
SELECT FRANC_AUTOINC_SEQ.NEXTVAL INTO :NEW.FRANCHISEID FROM DUAL;
END;

Hi,
There's no need to do anything.
If you want fewer numbers to be discarded in the future, you can make the cache size smaller, or remove it entirely, as in:
CREATE SEQUENCE FRANC_AUTOINC_SEQ
START WITH 1
INCREMENT BY 1
NOMAXVALUE
NOCACHE;This may mean slightly less efficiency, since (to use my earlier analogy) you have to go to the number store and buy a new box every time you need a number, rather than going to the store once and not having to go back again until you've used up the box of twenty numbers. If you rarely use more than one new number in a session, the loss in efficiency will be insignificant.
Regardless of the caching, if only one session is using the sequence, you will get consecutive numbers in that session. If NOCACHE is in effect, and you are the only person using the sequence, you will get consecutive numbers even if work over multiple sessions.
Ending the session is what causes the cached numbrs to be discarded. Shutting down the database implies ending all sessions, but otherwise has nothing to do with the sequence.
Message was edited by:
Frank Kulash

Auto Increment Field / Sequence - How?

Am I missing something here - is there no build in support to tie a datatables auto incriment field to a sequence so that it will be automatically retrieved on a update command?
I have a table that has a field (RECORD_ID) that gets it's value from a Sequence (RECORD_IDSEQ).
I am retrieving a dataset and setting the RECORD_ID field to autoincrement, setting the seed & step to -1. Then I am adding some records & I see the autoincrement field i working correctly. UNFORTUNATELY, I still have to iterate through the table before I call an update in order to insert (from another function) the RECORD_IDSEQ.NEXTVAL value into the RECORD_ID column.
Surely I am missing something. It sure seems simple enough to have a property of the autoincrement field/command builder that relates to the SEQUENCE name so that the update method generates the RECORD_IDSEQ.NEXTVAL automagically.
Can anyone shed any light on this for me?
Thanks!

Bob,
Currently, there's no built-in "link" between the .NET DataTable's auto-increment field and the Oracle sequence.
Therefore, you will need to execute a custom update command or a custom insert command which uses the RECORD_IDSEQ.NEXTVAL for the RECORD_ID column (rather than the auto-generated SQL via the CommandBuilder).
Furthermore, in your custom SQL you can have a RETURNING clause which returns the RECORD_ID column value to populate back into the DataTable so that the sequence values in the Database is in sync with those in the DataTable.
We'll consider providing a way to "link" the DataTable auto-increment column to an Oracle sequence in a future release.

How to use auto-increment and search option for MS Access DB

Dear All,
I have configured our invoice in Adobe Livecycle and connected it to MS Acess 2007 as per http://forms.stefcameron.com/2006/09/18/connecting-a-form-to-a-database/.
All is working fine, I can insert, retrieve data from DB to invoice and vice versa.
Now I want few things to be implemented on our invoice.
When ever I open our invoice, it populate the first entry from DB, Is it possible to populate the last entry ?
Auto increment invoice number from MS Access DB every time we open our invoice after save.
How to implement search option from DB for invoice number ?
Please let me know if someone can provide me help on my scenario, so that I can share more stuff related to invoice and DB.
Look forward to hearing soon from experts and other team members.
Thanks & Regards
Riyad...

As far as I know there is not any auto increment data type in Oracle. Instead of this you should create a sequence and get the next value of the sequence while creating a row in your table.
CREATE SEQUENCE Test_Sequence ;
CREATE TABLE Test_Table ( Id NUMBER , Foo VARCHAR2(4) ) ;
ALTER TABLE Test_Table ADD CONSTRAINT Test_Table_PK_Id PRIMARY KEY ( Id ) ;
INSERT INTO Test_Table ( Id , Information ) VALUES ( Test_Sequence.NEXTVAL , 'FOO' ) ;

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.

HSQL DB Identity & Auto Increment

We are trying to write records to this table:
create table location_groups
group_id identity
,jdoversion integer
,jdoclass varchar(255) default 'path.impl.LocationGroup' not null
,group_name varchar(100) not null
,group_parent_id integer
Package.jdo is:
<package name="path">
<class name="LocationComponent">
</class>
</package>
<package name="path.impl">
<class name="LocationGroup" persistence-capable-superclass="path.LocationComponent">

<extension vendor-name="kodo" key="jdbc-auto-increment" value="true"/>
<field name="children" persistence-modifier="persistent" default-fetch-group="true">
<collection element-type="path.impl.Location"/>
</field>
</class>
and package.mapping is:
<package name="path">
<class name="LocationComponent">
<jdbc-class-map type="horizontal"/>
</class>
</package>
<package name="path.impl">
<class name="LocationGroup">
<jdbc-class-map type="base" pk-column="GROUP_ID" table="LOCATION_GROUPS"/>
<jdbc-version-ind type="version-number" column="JDOVERSION"/>
<jdbc-class-ind type="in-class-name" column="JDOCLASS"/>
<field name="path.LocationComponent.name">
<jdbc-field-map type="value" column="GROUP_NAME"/>
</field>
<field name="children">
<jdbc-field-map type="one-many" table="LOCATIONS" ref-column.GROUP_ID="GROUP_PARENT_ID"/>
</field>
</class>
</package>
I have tried all manner of configurations but the error remains the same:
25-Apr-2008 16:05:24 com.ea.albt.infrastructure.persistence.jdo.JDODataStore BeginTransaction
CONFIG: Starting transaction
25-Apr-2008 16:05:24 com.ea.albt.infrastructure.persistence.jdo.JDODataStore updateObjects
FINE: Updating object ALBT Loc1209135924484 (has not yet been persisted)
25-Apr-2008 16:05:25 com.ea.albt.infrastructure.persistence.jdo.JDODataStore updateObjects
WARNING: Failed to persist/update objectALBT Loc1209135924484
kodo.util.FatalDataStoreException: Attempt to update the sequence table "JDO_SEQUENCE" failed. The sequence table is typically created when you run the mappingtool's refresh action on any datastore identity class. If you have not run the mappingtool but want to create the sequence table, run:
java kodo.jdbc.schema.DBSequenceFactory -action add
NestedThrowables:
Why is Kodo trying to use the jdo_sequence table when we want it to use the HSQLdb identity field ?

We have many users using single field identity and auto-increment together.

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 ...

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

How to update a auto increment record

Hi all,
I just figured out a way to insert auto increment record, but there is still one problem to solve which is how to do the update of the auto increment record, because after I get the db record, I don't know if there is a way to get the associated sequence key with the record, I can't do the record update without knowing the primary key, ie the associated sequence key.
Can you point me to a way to do updating?
Regards,
-Bruce

You learn how to use JDBC.
And then you learn how to use the SQL update statement.
If you search in this forum for 'update' you will find examples.

How to use "Auto increment" in temp table Oracle

Pleas tell me yaar,
In MS Sql for Auto increment i am using like this "seqid int identity" for temp table
t_seq_tbl table(seqid int identity,EVENT_SEQ_NO varchar(30))
In oracle how to use....

As far as I know there is not any auto increment data type in Oracle. Instead of this you should create a sequence and get the next value of the sequence while creating a row in your table.
CREATE SEQUENCE Test_Sequence ;
CREATE TABLE Test_Table ( Id NUMBER , Foo VARCHAR2(4) ) ;
ALTER TABLE Test_Table ADD CONSTRAINT Test_Table_PK_Id PRIMARY KEY ( Id ) ;
INSERT INTO Test_Table ( Id , Information ) VALUES ( Test_Sequence.NEXTVAL , 'FOO' ) ;

Integer auto-increment fields

I am using 3.0.3 and have a PC class that uses application identity and
MSSQL server, so we are using auto-increment fields for our primary keys.
In the past (with sequence-generated ids) we have used Integers for our
mapped attributes, but with the application identity, it seems we need to
use ints. Is there a reason for this, or is it a bug?
Nathan

Great. Thanks for the help.
Nathan
"Marc Prud'hommeaux" <[email protected]> wrote in message
news:[email protected]...
Nathan-
This is a bug. I've reported it at:
http://bugzilla.solarmetric.com/show_bug.cgi?id=910
I expect it will be fixed in the next release. In the meantime, if you
want to use a numeric wrapper for your auto-increment field, it will
need to be of type java.lang.Long.
In article <[email protected]>, Nathan Voxland wrote:
It does work with Longs. I could switch my code to use Longs, although
I
don't always need that large of an id field.
Nathan
"Marc Prud'hommeaux" <[email protected]> wrote in message
news:[email protected]...
Nathan-
If you change them both from Integer to a Long field, then does it
work?
>>>
>>>
In article <[email protected]>, Nathan Voxland wrote:
Here is the code for the class and the ApplicationId class. The
ApplicationId class was generated using the appidtool.
public class Portfolio {
private Integer id;
private String name;
private String notes;
private Organization client;
private Portfolio parentPortfolio;
private Set subPortfolios;
private Set projects;
private Date created;
private Person createdBy;
private Date lastModified;
private Person lastModifiedBy;
public Portfolio(PersistenceManager pm) {
pm.makePersistent(this);
this.subPortfolios = new HashSet();
this.projects = new HashSet();
this.created = new Date();
this.createdBy = new PersonPeer(pm).findLoggedIn();
this.lastModified = this.created;
this.lastModifiedBy = this.createdBy;
public Integer getId() {
return new id;
public String getName() {
return name;
public void setName(String name) {
this.name = name;
public void jdoPostLoad() {
public void jdoPreStore() {
if (!((PersistenceCapable) this).jdoIsNew()) {
this.lastModified = new Date();
this.lastModifiedBy = new
PersonPeer(((PersistenceCapable)
this).jdoGetPersistenceManager()).findLoggedIn();
public void jdoPreClear() {
public void jdoPreDelete() {
* Auto-generated by:
* kodo.enhance.ApplicationIdTool
public class PortfolioId
implements Serializable
static
// register persistent class in JVM
Class c = Portfolio.class;
public Integer id;
public PortfolioId ()
public PortfolioId (String fromString)
if ("null".equals (fromString))
id = null;
else
id = new Integer (fromString);
public String toString ()
return String.valueOf (id);
public int hashCode ()
return ((id == null) ? 0 : id.hashCode ());
public boolean equals (Object obj)
if (this == obj)
return true;
if (!(obj instanceof PortfolioId))
return false;
PortfolioId other = (PortfolioId) obj;
return ((id == null && other.id == null)
|| (id != null && id.equals (other.id)));
Nathan
"Marc Prud'hommeaux" <[email protected]> wrote in message
news:[email protected]...
Nathan-
Is the primary key field an Integer in both the application
identity
class and the persistent class itself? They need to both be the same
class.
If they are the same, and you are still getting the exception, could
you post the code for the classes (or else mail them to
[email protected])?
In article <[email protected]>, Nathan Voxland
wrote:
When I have my object use an int id, my test runs fine, when Iswitch
to
an
Integer, I get the exception:
kodo.util.FatalException: java.lang.ClassCastException
NestedThrowables:
java.lang.ClassCastException
at
kodo.runtime.PersistenceManagerImpl.flush(PersistenceManagerImpl.java:563)
at
com.correlat.intranet.projectmanagement.PortfolioTest.testFlush(PortfolioTes
t.java:393)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl
.java:25)
at com.intellij.rt.execution.junit2.IdeaJUnitAgent.doRun(UnknownSource)
at
com.intellij.rt.execution.junit.TextTestRunner2.startRunnerWithArgs(Unknown
Source)
at
com.intellij.rt.execution.junit2.JUnitStarter.prepareStreamsAndStart(Unknown
Source)
at com.intellij.rt.execution.junit2.JUnitStarter.main(UnknownSource)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl
.java:25)
at com.intellij.rt.execution.application.AppMain.main(UnknownSource)
Caused by: java.lang.ClassCastException
at
com.correlat.intranet.projectmanagement.Portfolio.jdoReplaceField(Portfolio.
java)
atkodo.runtime.StateManagerImpl.replaceField(StateManagerImpl.java:2771)
at
kodo.runtime.StateManagerImpl.storeObjectField(StateManagerImpl.java:2272)
atkodo.runtime.StateManagerImpl.storeObject(StateManagerImpl.java:2252)
at
kodo.jdbc.meta.ValueFieldMapping.setAutoIncrementValue(ValueFieldMapping.jav
a:346)
atkodo.jdbc.meta.ClassMapping.setAutoIncrementValue(ClassMapping.java:381)
at
kodo.jdbc.runtime.PreparedStatementManager.flush(PreparedStatementManager.ja
va:137)
atkodo.jdbc.runtime.UpdateManagerImpl.flush(UpdateManagerImpl.java:357)
atkodo.jdbc.runtime.UpdateManagerImpl.flush(UpdateManagerImpl.java:153)
at
kodo.jdbc.runtime.UpdateManagerImpl.flush(UpdateManagerImpl.java:72)
atkodo.jdbc.runtime.JDBCStoreManager.flush(JDBCStoreManager.java:507)
at
kodo.runtime.DelegatingStoreManager.flush(DelegatingStoreManager.java:158)
at
kodo.datacache.DataCacheStoreManager.flush(DataCacheStoreManager.java:412)
at
kodo.runtime.PersistenceManagerImpl.flushInternal(PersistenceManagerImpl.jav
a:794)
at
kodo.runtime.PersistenceManagerImpl.flush(PersistenceManagerImpl.java:550)
... 24 more
NestedThrowablesStackTrace:
java.lang.ClassCastException
at
com.correlat.intranet.projectmanagement.Portfolio.jdoReplaceField(Portfolio.
java)
atkodo.runtime.StateManagerImpl.replaceField(StateManagerImpl.java:2771)
at
kodo.runtime.StateManagerImpl.storeObjectField(StateManagerImpl.java:2272)
atkodo.runtime.StateManagerImpl.storeObject(StateManagerImpl.java:2252)
at
kodo.jdbc.meta.ValueFieldMapping.setAutoIncrementValue(ValueFieldMapping.jav
a:346)
atkodo.jdbc.meta.ClassMapping.setAutoIncrementValue(ClassMapping.java:381)
at
kodo.jdbc.runtime.PreparedStatementManager.flush(PreparedStatementManager.ja
va:137)
atkodo.jdbc.runtime.UpdateManagerImpl.flush(UpdateManagerImpl.java:357)
atkodo.jdbc.runtime.UpdateManagerImpl.flush(UpdateManagerImpl.java:153)
at
kodo.jdbc.runtime.UpdateManagerImpl.flush(UpdateManagerImpl.java:72)
atkodo.jdbc.runtime.JDBCStoreManager.flush(JDBCStoreManager.java:507)
at
kodo.runtime.DelegatingStoreManager.flush(DelegatingStoreManager.java:158)
at
kodo.datacache.DataCacheStoreManager.flush(DataCacheStoreManager.java:412)
at
kodo.runtime.PersistenceManagerImpl.flushInternal(PersistenceManagerImpl.jav
a:794)
at
kodo.runtime.PersistenceManagerImpl.flush(PersistenceManagerImpl.java:550)
at
com.correlat.intranet.projectmanagement.PortfolioTest.testFlush(PortfolioTes
t.java:393)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl
.java:25)
at com.intellij.rt.execution.junit2.JUnitStarter.main(UnknownSource)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl
.java:25)
at com.intellij.rt.execution.application.AppMain.main(UnknownSource)
Nathan
"Patrick Linskey" <[email protected]> wrote in message
news:[email protected]...
What behavior are you seeing that is preventing you from using
Integers?
-Patrick
Nathan Voxland wrote:
I am using 3.0.3 and have a PC class that uses application
identity
and
MSSQL server, so we are using auto-increment fields for our
primary
keys.
In the past (with sequence-generated ids) we have used Integers
for
our
mapped attributes, but with the application identity, it seems
we
need
to
use ints. Is there a reason for this, or is it a bug?
Nathan
Marc Prud'hommeaux [email protected]
SolarMetric Inc. http://www.solarmetric.com
Marc Prud'hommeaux [email protected]
SolarMetric Inc. http://www.solarmetric.com
Marc Prud'hommeaux [email protected]
SolarMetric Inc. http://www.solarmetric.com

How to get auto-increment value after insert on ACCESS db?

When you insert a new record to a table with an auto-incrementing key, how do you find the value for the row you just inserted? This works differently with different databases. I know how it's done on ORACLE and mySql.
How does it work with ACCESS through ODBC? How about MSSQL?

I have discovered there's a LAST aggregate function which when I've tested it gets the just inserted auto-increment, but I'm not sure if it's reliable. You have to do:
SELECT LAST(index-field) FROM table
That ought to be faster than MAX, which I've noticed some people use. Persumable LAST will get the value from the last row in the table's natural order.
In fact an auto-increment field has no business filling in missing slots since the main point is a a foreign key in other tables and a foreign key pointing to a deleted table row ought to be invalidated, not point to some unrelated successor record.
I could use a separate table as a source of counters, of course, though that's one more call. In either case I'm worried about thread safety. In Oracle there are special sequence objects for this purpose which are incremented and read atomically. I'm not sure if the access driver transaction handling works adequately.
Perhaps the safest approach might be to use a separate sequencer table and Java sychronisation to serialise access to each row in the sequencer table (assuming all the access is from the same app).

Primary key column auto increment

Hello,
In my Azure SQL Database I noticed that weird thing is happening. I have table with primary key column with auto increment, and all works fine, on new insert that value automatically increment, but every now and then, that value, for no reason, increments
for 1000.
For instance i have in DB values in this order: 1, 2, 3, 4, 1001, 1002, 1003, 2004, 2005, 3001, 3002...
Why is this happening?

Hello ,
you can see this thread :
http://stackoverflow.com/questions/17012339/windows-azure-sql-database-identity-auto-increment-column-skips-values
It's seems that SQL Server work with sequence and block 1000 values. In the cloud, your SQL Azure Database can be move from one server to an other or restarted and so a new sequence is used. That's why you jump from 4 to 1001.
Regards

Auto increment sequence

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