Embedded database storage dimension

We are planning to use Oracle XE as an embedded database in our application. Since we store data taken from our control application, some tables grow in a fast way. I implemented a PL/SQL procedure with the purpose to monitor the number of rows in the table and delete a predefined percentage of the old rows. In this way the number of row should always be under a predefined limit. Is this enough in order to keep the storage size always under a predefined value? Should I do some operations on other tablespaces (i.e. undo tablespace)?
Thanks,
Gianluca

it depends how you insert new rows, if you are appending them using /*+APPEND*/ then you will quickly go over the space. However if you delete rows then re-add the normally the space should be re-used

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DBCA can not use ASM for database storage due to following reason: Could no

Hi
I've a recently installed RAC11gR2(11.2.0.3) on HP-UX
I installed Grid Infrastructure with grid user:
Node1: # id grid
uid=1100(grid) gid=1000(oinstall) groups=1031(dba),1021(asmdba)
Node2: # id grid
uid=1100(grid) gid=1000(oinstall) groups=1031(dba),1021(asmdba)
I installed the Oracle Server with oracle user:
Node1: # id oracle
uid=1101(oracle) gid=1000(oinstall) groups=1031(dba),1021(asmdba),1033(oper)
Node2: # id oracle
uid=1101(oracle) gid=1000(oinstall) groups=1031(dba),1021(asmdba),1033(oper)
All related Grid Infrastructure is functioning well in both nodes:
$ crs_stat -t
Name Type Target State Host
ora.DATA.dg ora....up.type ONLINE ONLINE node03
ora.FRA.dg ora....up.type ONLINE ONLINE node03
ora....ER.lsnr ora....er.type ONLINE ONLINE node03
ora....N1.lsnr ora....er.type ONLINE ONLINE node04
ora.asm ora.asm.type ONLINE ONLINE node03
ora.cvu ora.cvu.type ONLINE ONLINE node04
ora.gsd ora.gsd.type OFFLINE OFFLINE
ora....network ora....rk.type ONLINE ONLINE node03
ora.oc4j ora.oc4j.type OFFLINE OFFLINE
ora.ons ora.ons.type ONLINE ONLINE node03
ora.scan1.vip ora....ip.type ONLINE ONLINE node04
ora....SM1.asm application ONLINE ONLINE node03
ora....03.lsnr application ONLINE ONLINE node03
ora....d03.gsd application OFFLINE OFFLINE
ora....d03.ons application ONLINE ONLINE node03
ora....d03.vip ora....t1.type ONLINE ONLINE node03
ora....SM2.asm application ONLINE ONLINE node04
ora....04.lsnr application ONLINE ONLINE node04
ora....d04.gsd application OFFLINE OFFLINE
ora....d04.ons application ONLINE ONLINE node04
ora....d04.vip ora....t1.type ONLINE ONLINE node04
$
The ASM instance are running well in both nodes
Connected with oracle user, the listener has registered perfectly the ASM instance in each node:
$
$ lsnrctl status
LSNRCTL for HPUX: Version 11.2.0.3.0 - Production on 16-MAY-2012 15:41:06
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for HPUX: Version 11.2.0.3.0 - Production
Start Date 16-MAY-2012 15:24:19
Uptime 0 days 0 hr. 16 min. 47 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/11.2.0/grid/network/admin/listener.ora
Listener Log File /u01/app/grid/diag/tnslsnr/node03/listener/alert/log .xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=16.0.0.133)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=16.0.0.136)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM1", status READY, has 1 handler(s) for this service...
The command completed successfully
$
$
DATA & FRA disk group are created:
$
$ echo $ORACLE_SID
+ASM1
$
$ asmcmd
ASMCMD>
ASMCMD> ls -lt
State Type Rebal Name
MOUNTED EXTERN N DATA/
MOUNTED EXTERN N FRA/
ASMCMD>
ASMCMD>
The big issue is... that the DBCA can not see the diskgroups. When I choose ASM Storage it can not see them. It shows the chart in blank and if i try to write the disk group, so the following message appears: can not use ASM for database storage due to following reason: Could not connect to ASM due to following error: ORA-01034 ORACLE not available
What can be passing in this case... ?
Thanks in advance

Thanks both
Really the problem initially was because of this:
[INS-06006] Passwordless SSH connectivity not set up between the following node(s): [node1, node2]. CVU may reports "PRVF-4007 : User equivalence check failed for user "user"" for same error
and I had to install node1 first and after node2 manually and perhaps for this the product was not well linked.
I resolved the problem establishing the keys with the wizard and after copying the following files from node1 to node2
/home/grid/.ssh -------> /home/grid/.ssh
authorized_keys
known_hosts
This is the procedure if you run the wizard at the node1.
The problem is that the wizard creates the keys incompletely...
Thanks

Java ME embedded database used in BlackBerry for mobile CRM

Interested in business applications of Java ME mobile technology, or in embedded database systems available for Java ME?
If so, take a look at the news posted on McObject's 'Perst Blog'. Maximizer, a British Columbia company, has adopted the Perst Lite open source, object-oriented database for Java ME to integrate with its customer relationship management (CRM) software on BlackBerry devices.
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The post is at at [http://www.jroller.com/perst/entry/perst_lite_chosen_to_improve]{size}{font}

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Database Storage location using DBCA

I'm trying to create a database. I would like to put the database on drive M and the logs on drive N.
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System01.dbf M:\oradata
redolog01a.log N:\oradata
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Connection to Embeded Database from Crystal Reports XI

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Gene

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Link to " Database Storage Consolidation with ASM White Paper " now fixed

I cannot access document "Database Storage Consolidation with ASM White Paper " on http://www.oracle.com/technetwork/database/index-100339.html.
The new link seems also to be broken http://www.oracle.com/technology/products/database/asm/pdf/db_storage_consolidation_wp%2012-05.pdf
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Edited by: P. Forstmann on 21 sept. 2010 08:51
Edited by: P. Forstmann on 21 sept. 2010 08:51

This link has been repaired.
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Embedded Database - data does not load

Hello.
I am currently using NetBeans 6.5 and am experimenting with the CarsApp tutorial.
Whenever I create an application using the server database, the data loads automatically when the application starts.
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I'm sorry, I didn't know it was so looked down upon.
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Hello,
I have an application that needs to be shipped to the customers with an embedded database that consists of critical application dependent data. The problem is that this data is top-secret information that for no reason should get in the hands of someone else because all the company value lies in this data. So my question is:
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TolvanTolvanTolvan wrote:
Hello,
I have an application that needs to be shipped to the customers with an embedded database that consists of critical application dependent data. The problem is that this data is top-secret information that for no reason should get in the hands of someone else because all the company value lies in this data. So my question is:
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>
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Java Embedded Database Recommendation

Does anyone have a recommendation for a Java embedded database solution? I have been using Borland's JDatastore for a while and I have become frustrated by some of its' bugs. Has anyone had a better experience with some of the other Java embedded databases out there - for example, InstantDB or Pointbase? Or are all of these products at about the same level of maturity and reliability?
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Take a look at our project here; http://www.mckoi.com/database/
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What the heck is that?
After I did a software update, this new feature showed up
under "Security".
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bobo

Safari now comes with SQLLite database storage for offline applications. An example is here:
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Database storage

I have a confusion regarding the database storage mechanism.
I have created a tablespace
CREATE TABLESPACE TEST
DATAFILE '..\test01.DBF'
SIZE 152k
SELECT bytes FROM DBA_FREE_SPACE
WHERE tablespace_name ='TEST'
It shows 65536 bytes.
But it is smaller then 152k.
Why is it so??
Please help me out.

hello,
as you have not specified extent clause i think it is initial extent oracle creates of 64k (65536/1024=64k) as it is ...oracle system-managed extents
have a look at this
http://download.oracle.com/docs/cd/B19306_01/server.102/b14220/logical.htm#g23847
this is extract from oracle docs
For system-managed extents, Oracle determines the optimal
size of additional extents, with a minimum extent size of 64 KB.
If the tablespaces are created with 'segment space management auto',
and if the database block size is 16K or higher, then Oracle manages
segment size by creating extents with a minimum size of 1M.
This is the default for permanent tablespaces.experts please correct me.....if i am wrong
thanks and regards
VD
Edited by: Dixit on Sep 8, 2009 2:15 AM
Edited by: Dixit on Sep 8, 2009 2:16 AM
Edited by: Dixit on Sep 8, 2009 2:18 AM

Step for oracle database storage migration

Hi all
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Hi;
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Master Note For Oracle Database Upgrades and Migrations [ID 1152016.1]
Different Upgrade Methods For Upgrading Your Database [ID 419550.1]
Migration of Oracle Database Instances Across OS Platforms[ID 733205.1]
How To Use RMAN CONVERT DATABASE on Source Host for Cross Platform Migration [ID 413586.1]
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Regard
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Does Partitions take up database storage space

Thanks in advance.
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Is there a benefit to asking the same question over again? (If so, I'd love to hear it.)
Or would you be willing to continue with the original thread at Oracle Table and Index Partitions storage consumption?

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Cheers,
Ted

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What should I be using for an embedded database?

I'm still learning C# in the .NET environment and I'm currently working on a Windows desktop app. I've read that LocalDB can be used as an embedded database if I want to let other people buy any apps I make in the future. But I've also read that SQL Server
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You cannot use SQL for a mobile application.
I would suggest using SQLLite and it is not very complicated to use with c#.
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Embedded database storage dimension

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