Real-time database or non real-time database

I know the scheduling mechanism in Oracle database is somewhat like the Linux OS which is not real-time. Does Oracle provide real-time database which has some real-time scheduling guaranteeing each user transaction to meet with a deadline ? Thx a lot.

The Berkley DB that Oracle owns has been ported to QNX which is a real-time operating system.
http://www.oracle.com/technology/documentation/berkeley-db/db/ref/build_unix/qnx.html
Why, out of curiosity, are you looking into Oracle for a real-time system? That implies that you're running a real-time operating system on your servers, which is certainly unusual. I've heard of some ports of 9i to real-time operating systems, but that would certainly be unusual.
Justin

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Error -1074384569; NI-XNET: (Hex 0xBFF63147) The database information on the real-time system has been created with an older NI-XNET version. This version is no longer supported. To correct this error, re-deploy your database to the real-time system.

Hello
I have a VeriStand-Project (VSP) created with my Laptop-Host (LTH) which works with my PXI, while
deploying it from my LTH. Then I have installed the whole NI enviroment for PXI and VeriStand use on a
industrial PC (iPC). I have tried to deploy my VSP from the iPC to the PXI but the following error
message arose on my iPC:
The VeriStand Gateway encountered an error while deploying the System Definition file.
Details: Error -1074384569 occurred at Project Window.lvlibroject Window.vi >> Project
Window.lvlib:Command Loop.vi >> NI_VS Workspace ExecutionAPI.lvlib:NI VeriStand - Connect to System.vi
Possible reason(s):
NI-XNET: (Hex 0xBFF63147) The database information on the real-time system has been created with an
older NI-XNET version. This version is no longer supported. To correct this error, re-deploy your
database to the real-time system. ========================= NI VeriStand: NI VeriStand
Engine.lvlib:VeriStand Engine Wrapper (RT).vi >> NI VeriStand Engine.lvlib:VeriStand Engine.vi >> NI
VeriStand Engine.lvlib:VeriStand Engine State Machine.vi >> NI VeriStand Engine.lvlib:Initialize
Inline Custom Devices.vi >> Custom Devices Storage.lvlib:Initialize Device (HW Interface).vi
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * • Unloading System
Definition file... • Connection with target Controller has been lost.
The software versions of the NI products (MAX/My System/Software) between my LTH and the iPC are
almost the same. The only differences are:
1. LabView Run-Time 2009 SP1 (64-bit); is installed on LTH but missing on iPC. The iPC has a 32-bit system.
2. LabView Run-Time 2012 f3; is installed on LTH but missing on iPC.
3. NI-DAQmx ADE Support 9.3.5; something strage on the LTH, because normally I am using NI-DAQmx 9.5.5 and all other DAQmx products on my LTH are 9.5.5. That means NI-DAQmx Device Driver 9.5.5 and NI-DAQmx Configuration 9.5.5.. On the iPC side all three products are 9.5.5.. That means NI-DAQmx ADE Support 9.5.5, NI-DAQmx Device Driver 9.5.5 and NI-DAQmx Configuration 9.5.5..
4. Traditional NI-DAQ 7.4.4; The iPC has this SW installed. On the LTH this SW is missing.
In order to fix this problem I have formatted my PXI and I have installed the following SW from the iPC:
1. LabVIEW Real-Time 11.0.1
2. NI-488.2 RT 3.0.0
3. NI_CAN 2.7.3
Unfortunately the above stated problem still arose.
What can I do to fix this problem?
I found a hint on http://www.labviewforum.de/Thread-XNET-CAN-die-ersten-Gehversuche.
There it is written to deploy the dbc file againt.
If this is a good hint, so how do I deploy a dbc file?
I would feel very pleased if somebody could help me! :-)
Best regards
Lukas Nowak

Hi Lukas,
I think the problem is caused by differenet drivers for the CAN communication.
NI provides two driver for CAN: NI-CAN and NI-XNET.
NI-CAN is the outdated driver which is not longer used by new hardware. NI replaced the NI-CAN driver with NI-XNET some years ago, which supports CAN, LIN and the FLEXRAY communication protocol.
You wrote:
In order to fix this problem I have formatted my PXI and I have installed the following SW from the iPC:
3. NI_CAN 2.7.3
NI CAN is the outdated driver. I think that you should try to install NI-XNET instead of NI-CAN on your PXI-System, to get rid of the error message.
Regards, stephan

How to identify that my physical standby database in use real time apply?

Hi,
Can any one give me the SQL to identifiy that my physical standby database is in real time applying redo logs?
Its urgen please....
Thanks.

You could just look at the alert log. Look for "Recovery of Online Redo Log"
Or you could select from v$standby_apply_snapshot to see if the standby is up-to-date.
select thread#, to_char(snapshot_time,'dd-mon-yyyy:hh24:mi'),
to_char(applied_time,'dd-mon-yyyy:hh24:mi'),
to_char(newest_time,'dd-mon-yyyy:hh24:mi') from V$STANDBY_APPLY_SNAPSHOT;

SQL Server wants to open properties of wrong database and cannot restore logs of different databases at the same time

We have implemented our own way of logshipping by backing up the transaction logs of all our non-system databases every hour. Then we transfer the backups (before SQL Server 2008 R2 with additional zip and unzip steps) to the second environment where we
restore them only during the night on databases in standby-state (Like this, our developers can access the databases without disturbing the productive system and we can restore the t-logs during night, so not shutting out the developers during the day).
Now since we replaced our hardware in the productive environment, we replaced the hardware in the second environment with the servers from previous productive environment. Same SQL Server 2008 R2, same Service Pack (SP2), same installation procedure. But
since then the SQL Server in the second environment behaves different:
- When the logs of some database "A" are restored, I cannot access the properties of any database, i.e. database "B", I only get the error message "Cannot show requested dialog. (SqlMgmt) Database 'A' cannot be opened. It is in the
middle of a restore. (Microsoft SQL Server, Error: 927)"
- Our logshipping runs multiple instance at the same time, so restoring multiple databases' logs. But since the change, two of the instances fail restoring of datatbases, i.e. "B" and "C" with the error message "Database 'A' cannot
be opened. It is in the middle of a restore.". The jobs guarantee to restore only logs of the database they need to restore, they have strictly separated sets of target databases and only try to restore the databases of their sets.
Before the new installations, we did not have these strange behaviours. But as said, it is the same SQL Server version, the same service pack, and we followed the same installation document but maybe with the small changes in settings. The user the jobs
are running under is a domain admin, the login they use has dbcreator, processadmin, db_owner and db_backupoperator roles. My login on the SQL Server has sysadmin rights and as described similar problems.
Is this problem known or does somebody have an idea where to go looking for?
Thanks, Chris

Hi Christar,
According to your description, after you configuring Log shipping between two database, you remove the hardware from production environment to dev environment, in this hardware, there are saved the transaction logs of your database.
When restoring your database, there will occurs error 927, right?
SQL Server Log shipping allows you to automatically send transaction log backups from a
primary database on a primary server instance to one or more
secondary databases on separate secondary server instances. It consists of three operations:
1.Back up the transaction log at the primary server instance.
2.Copy the transaction log file to the secondary server instance.
3.Restore the log backup on the secondary server instance.
Since you want to move your hardware avoiding copy job, we need to verify if .mdf and .ldf file are not saved in your hardware, or else,
if you move your hardware, you could not open your database in your Primary Server. I recommend you can refer to the following steps.
Full back up your primary database and restore it into the secondary database. It would have been set up as WITH STANDBY ,the databases would read StandBy/ Read Only.
Perform transaction log backups via a SQL Server Agent job running on the primary server instance, save them in your hardware.
In night, you move hardware to your dev environment, you can manually restore these transaction log backups or set up a SQL Server Agent job to restoring them from your hardware.
There is detail about how to configure log shipping in SQL Server 2008R2 step by step, you can review it.
http://mostafaelmasry.wordpress.com/2013/01/02/log-shipping-in-sql-server-2008r2-step-by-step/
Regards,
Sofiya Li
Sofiya Li
TechNet Community Support

UCCX What field and table of the UCCX database contains the max time to answer a call?

What field and table of the UCCX database contains the max time to answer a call?
Also when performing an aggregate function on CSQ queries do I group on target id? Is that the unique identifier?

Hi Christina,
Please find the information of the UCCX DB schema in the following table:
http://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/crs/express_8_5/user/guide/uccx85dbschema.pdf
Regards,
Arundeep

Forced to remap one database object at a time

Our application exposes a set of data objects (views) for external reporting. Field/row level data security conditions are built into the view definitions. Different access levels are segmented by schema names and in order to enable report reuse object names are identical between schemas.
Users granted schema rights based on their access level.
For example, user A is granted access only to the schema X which contains View1, View2, etc. while user B is granted access only to the schema Y which also contains View1, View2, etc.
User A can reuse report created by user B (since object names are identical), however s/he cannot do it without first changing the data source location (since their access levels and therefore schema names are different).
However, "Set Datasource Location" dialog (see sample screenshot below) does not allow one-click schema remapping. "Current Data Source" hierarchy does not directly expose schema name (it is listed as an "Owner" property of the individual table/view object) which forces user to remap one database object at a time by expanding top and bottom trees, highlighting matching objects and clicking "Update" button.
Our question is: are there any menu items/settings or any other facilities in Crystal Report that would allow us to make re-mapping process less time-consuming?

Hi Len,
No, bottom line is the designer is used to "finalize" the report. It's not designed to be use this way. What I suggest you do is create an application that can set location/schema at view time to that person logging in. This way it's all done in the back end and relatively easy to do using one of our SDK's.
Depending on what development tool and Report engine you use depends on which forum to post your question to. SAP will not create the application for you so you will need to get a developer involved.
Thank you
Don
Senior Technical Assurance Engineer
Developer Support Team
Business Objects, an SAP Company

11.5.10.2 12.1.1 and 10g 11g database upgrade at same time

I have just started an 11.5.10.2 > 12.1.1 upgrade and have created a project in MWIZ 2.15 for it.
I would also like to upgrade the 10.2.0.2 database to 11.1.0.7 as part of the same upgrade and create an MWIZ project for that.
I have a couple of questions that the MWIZ FAQ does not address:
1. At what point in the 11.5.10.2 > 12.1.1 upgrade should I do the database upgrade?
MWIZ has two points when it can be done based on apps/database versions. One is at the end of the 'Prep for Upgrade' category and the other is during the 'Upg to Rel 12.1.1' category. The MWIZ step notes cover upgrading to the latest 10g or 11g patch version but not upgrading from 10g to 11g so I am unsure which category to go for.
2. When I create the database upgrade project which 'Destination Version' should I choose?
The two options are 'RDBMS 11.1 and E-Business Suite 11.5' and 'RDBMS 11.1 and E-Business Suite 12'.
As I haven't upgraded to R12 yet and am still at the pre-upgrade stage should I pick 11.5? Or should I go with R12 because I am upgrading Apps and the database at the same time?
Any help and advice gratefully received.
Thanks

Answer to above question not required now as:
Having read the 24th December update of note 761570.1 - 'Database Preparation Guidelines for an Oracle E-Business Suite Release 12.1.1 Upgrade' I have decided to upgrade the database to 11.2.0.x by following the Path C option.
Unfortunately as the 11.2.0.x upgrade isn't covered by MWIZ yet I will have to follow the manual steps.

Can we start more than one user created database at the same time

Hi.,
Can we start/work more than one user created database at the same time ??
--Shyam

Hi Shyam,
I really dont understand what you have asked?
If your question is can we start more than one database at the same time then the answer to that is yes but provided to have enough resources on your server to support running of two or more different databases on the same machine.
Ex Senior DBA

How can i use offline & online database in the same time?

how can i use offline & online database in the same time?
my database in another server when the connection true it connect
but if not does not work
i wanna make offline database if the server not connected it connect offline then the server is on it alter all data from the offline to the server.

User, please tell us your Jdev version!
There is no such functionality build into the framework. The offline data base is only for designing the db, not to have a backup db.
If you can't connect to the db the application will not work.
Timo

How can I use the database default time rather than Java supplied time

I've searched over and over and nobody seems to have this issue so maybe its just me!
When inserting a record I would like the a create_date column to automatically use the database time rather than a supplied time via JPA. That was all times a relative to the database which makes sense.
The trouble is I cant figure out how to do this in a sensible manor.
If I specify an column like :
     @Temporal(TemporalType.TIMESTAMP)
     @Column(name = "CREATE_DATE")
     private Date createDate;
and IDL
CREATE_DATE TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_DATE NOT NULL
If I leave createDate null I get an exception. If modify the column to allow Nullable then column is set as Null.
If I leave the column out of the entity bean and then and create a row then the database current time is inserted. The trouble then is that if I want to read the date I'm going to have to create a copy of the bean but with the CREATE_DATE in it, and this doesn't make sense.

I should also mention that TopLink has always supported the ability to retrieve the current time from the database for use in optimistic locking. The TimestampLockingPolicy offers the ability to configure the next value being retrieved from the database instead of using the local time from the JVM. Our extended optimistic locking configuration does not currently support setting this option but it could be done using a descriptor customizer which can be configured in your persistence unit properties.
Using optimistic locking may be a good solution for the last modified date since it will also ensure that you do not corrupt the database if someone else has incremented this value since your last read.
Doug

Can I recover the database to the current time using a backup control file?

Can I recover the database to the current time using a backup control file? How far can I recover this database?
I have an Oracle 10g(10.2.3) database on RHEL4.3 system.
I have lost all the current control files and all the online redo logs, archived redo logs and all other files are OK.
Now I have to recovery this database using a backup control file.
Can I recover the database without any data lost？

If
a) it was a Shutdown Abort or an Instance Crash (i.e. backgrounds died on detecting loss of redo logs),
b) redo logs are lost
c) data files are intact
You'd have to
a) Restore datafiles
b) Do an Incomplete Recovery to the last available ArchiveLog
Hemant K Chitale
http://hemantoracledba.blogspot.com

"RUN-TIME ERROR '3078': The Microsoft Access database engine cannot find the input table or query 'name'. Make sure it exists and that its name is spelled correctly.

When I run the code below I get the following error:"RUN-TIME ERROR '3078': The Microsoft Access database engine cannot find the input table or query 'False'. Make sure it exists and that its name is spelled correctly. Note that I do not call
anything by the name of "false" anywhere in this code.
The subject code (the underscored line of code is highlighted in the debugger when the error occurs):
Option Compare Database
Private Sub JobAssign_Click()
MatLotListAvail_openform
End Sub
Function MatLotListAvail_openform()
Dim dbsAPIShopManager2010 As DAO.Database
Dim rstMaterialLotJobJoint As DAO.Recordset
Dim strSQL As String
Set dbsAPIShopManager2010 = CurrentDb
strSQL = "SELECT * FROM MaterialLotJobJoint WHERE JobID" = "tempvars!JobID" And "MatLotID" = "tempvars!MatLotID"
Set rstMaterialLotJobJoint = dbsAPIShopManager2010.OpenRecordset(strSQL, dbOpenDynaset)
If rstMaterialLotJobJoint.EOF Then
DoCmd.OpenForm "JobAssignMatConf", acNormal, "", "", acEdit, acNormal
Forms!JobAssignMatConf!PartapiIDVH = TempVars!PartapiID
Forms!JobAssignMatConf!JobapiIDVH = TempVars!JobapiID
Forms!JobAssignMatConf!JobIDVH = TempVars!JobID
Forms!JobAssignMatConf!MaterialLotIDVH = TempVars!MatLotID
Forms!JobAssignMatConf!Desc = TempVars!MatDesc
Forms!JobAssignMatConf!recdate = TempVars!recdate
DoCmd.Close acForm, "MaterialLotListAvailable"
Else: MsgBox "This material lot has already been assigned to this job."
DoCmd.Close acForm, "MaterialLotListAvailable"
End If
End Function

I think the SQL statement should be
strSQL = "SELECT * FROM MaterialLotJobJoint WHERE JobID=" & _
tempvars!JobID & " AND MatLotID=" & tempvars!MatLotID
This assumes thatJobID and MatLotID are number fields.
Regards, Hans Vogelaar (http://www.eileenslounge.com)

Oracle Database Procedure Execute Date/Time

Hi,
Is possible to track the Oracle Database Procedure Execute Date/Time?

Is possible to track the Oracle Database Procedure Execute Date/Time?Yes, by using
CONNECT sys/password AS SYSDBA
AUDIT EXECUTE PROCEDURE BY fireid BY ACCESS;

Windows APP without real internet connection stops working in time

Windows APP without real internet connection stops working in time
Hello all,
I am trying to get the following to work. We have an intranet page which users need to connect to, to operate some machines. This is done through an windows 8.1 Tablet with an assigned KIOSK mode app (Kios SP Browser).
This works great as the assigned app is the only thing the user can run and we don't have to really harden the device. One drawback in using the assigned apps is that it needs to be an New App (as Microsoft call it)
The app is installed on an reference machine which runs in workgroup mode (no domain connection is needed on the devices) and after the reference machine is installed it is imaged with the use of Acronis. After deployment the tablet has no connection to
internet and the intranet page is wireless put available to the tablets. As a side note, the tablet operates with local accounts and the app is installed using an corporate hotmail account we created just for this purpose.
I now deployed the image over 20 different tablet devices and this worked great until recently a few devices start to complain it needs to connect to the windows shop before the app can be started. As the devices don't have internet access this can't be
done and the tablet is rendered useless for the user.
How can i make the app available without internet connection ? and how can i be sure the app will continue to work over time without connection to the store ?

Thanks for the reply.
I can't unblock the internet connection as the wireless network doesn't have any internet connection what so ever. The main purpose is to be able to operate the machinery and nothing else, hence the kios app which is being used to show the intranet page
which connects than to the devices.
The problem is that after imaging the app works as expected but after a few days the app stops to work ...
I found the following website over site loading an app without the needed appx files. It shows an way to capture the files during installation from the windows store.
https://www.404techsupport.com/2014/06/installing-free-windows-8-modern-apps-without-the-windows-store/
It is a bit strange to have it this difficult to install apps without the needed store and i think that Microsoft should make this easier. I hope this works better and after a few days i will give the feedback how this handles..
If anyone knows of a better way .....

Response time much more in migrated AIX database than in Windows database

We migrated a 9.2.0.6 database from windows to AIX (on same oracle version). Initially we were getting really slow response on direct sqls and batch sqls fom application server. Then we tuned aix database a bit and got a better response time for direct sqls on aix database.
Now queries run faster on aix database than the db on windows.
However, the queries from applciation (ACCURATE application) are still twice slower on aix database compared to windows database.
Can anyone suggest a possible cause or tuning area?
We have checked on network level and found no bottlenecks.
Regards,
Garima

user650817 wrote:
We migrated a 9.2.0.6 database from windows to AIX (on same oracle version). Initially we were getting really slow response on direct sqls and batch sqls fom application server. Then we tuned aix database a bit and got a better response time for direct sqls on aix database.
Now queries run faster on aix database than the db on windows.
However, the queries from applciation (ACCURATE application) are still twice slower on aix database compared to windows database.
Can anyone suggest a possible cause or tuning area?Garima,
if you have particular queries that you know of that are behaving differently, you could start right away by comparing the execution plans and tracing the execution using the SQL trace facility and the "tkprof" trace file analyzer.
If you want to get an overview of the database performance, you should consider installing STATSPACK on both systems if you haven't done so yet and create snapshots to compare statspack reports from both systems for a representative time period. This way you can gather information about the top wait events and top SQLs of the periods analyzed.
By the way, how did you "migrate" the database? Did you use export/import to migrate? What about the statistics for the cost based optimizer, could these be different between the two systems or are you still using the rule based optimizer?
Regards,
Randolf
Oracle related stuff blog:
http://oracle-randolf.blogspot.com/
SQLTools++ for Oracle (Open source Oracle GUI for Windows):
http://www.sqltools-plusplus.org:7676/
http://sourceforge.net/projects/sqlt-pp/

Real-time database or non real-time database

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