Private Virtual Database - Database model design

I'm planing to design a new database model for a system that will integrate private virtual database. We will use private virtual database to use the same data structure for different users or systems.
The systems are defined in a table.
My question is what is the best way to maintain a good level of security but avoid too much overhead.
1) We designed our model by adding an attribute and a foreign key in all our tables referring to the system that own the row.
2) We decided later to limit the filter in main entity to avoid adding a filter in all our tables.
But doing so let the child tables visible then accessed without a join to the main entity.
Any recommendations/ideas for the best design in this context ?

What was the objection to creating a filter on every table?
The work and overhead by generalizing the filter into all tables.
That would be the normal approach.
I agree with you. Just need a confirmation it is the best and only true way.
Another way would be to create view with inner join only in a separate schema or with permissions only in the views but i think it more overhead than defining the attribute in all tables. Its a much simpler approach.
Thank you

Similar Messages

Oracle Database RAC 11gR2 : Role of Public,Private,Virtual, and SCAN IPs.

Hi Experts,
1. Can you please let me know why do we need configure below IP addresses for RAC setup and what is the role that each one plays ?
- Public
- Private
- Virtual
-SCAN
2. What is the relationship between SCAN IP and Virtual IPs ?
Regards

Hi,
859875 wrote:
Hi Experts,
1. Can you please let me know why do we need configure below IP addresses for RAC setup and what is the role that each one plays ?
- PublicConfigured before installation for each node, and resolvable to that node before installation.
Role:
Allow communication/configuration of Virtual/SCAN between the nodes of the cluster. Without Public Interface/IP the Clusterware don't start.
The Virtual/SCAN will work as alias IP on Public Interface over Public Network.
- Private or InterconnectConfigured before installation, but on a separate, private network, with its own subnet, that is not resolvable except by other cluster member nodes
Role:
Clusterware uses the interconnect for cluster synchronization (network heartbeat) and daemon communication between the the clustered nodes.
RAC uses the interconnect for cache fusion (UDP) and inter-process communication (TCP).
Cache Fusion is the remote memory mapping of Oracle buffers, shared between the caches of participating nodes in the cluster.
- VirtualConfigured before installation for each node, but not currently in use. On the same subnet as all other public IP addresses, VIP addresses, and SCAN addresses.
Role:
The goal is application availability. If add or remove nodes it's necessary make config your client adding/removing VIP (with SCAN it's not necessary)
When a node fails, the VIP associated with it is automatically failed over to some other node.
Without using VIPs or FAN, clients connected to a node that died will often wait for a TCP timeout period (which can be up to 10 min) before getting an error.
As a result, you don't really have a good HA solution without using VIPs and FAN. The easiest way to use FAN is to use an integrated client with Fast Connection Failover (FCF) such as JDBC, OCI, or ODP.NET.
-SCANThree Static IP addresses configured on the domain name server (DNS) before installation so that the three IP addresses are associated with the name provided as the SCAN, and all three addresses are returned in random order by the DNS to the requestor
Configured before installation in the DNS to resolve to addresses that are not currently in use. On the same subnet as all other public IP addresses, VIP addresses, and SCAN addresses
Role:
The goal is application availability before clients establish communication with RAC and make the Cluster-Wide totally transparent.
SCAN IP is a new "layer" network (oracle) with high availability that allows you to change the characteristics of your cluster (i.e add/remove nodes) without the need to make configuration changes in their clients "Grid concept".
>
2. What is the relationship between SCAN IP and Virtual IPs ?SCAN IP is used to receive new connection requests and redirects to the VIP IP.
The Virtual IP establishes and allow failover of the connections after connection being established.
When the client requests a connection, Oracle Client 11gR2 find for IPs available for this host-scan and create a list of all SCAN IP the first connection attempt on RAC is using one of SCAN IPs avaliable.
The SCAN Listener will receive this connection and re-direct to one of avaliable nodes using LOCAL_LISTENER from this point the the connection is established using Virtual IP (VIP).
All SCAN/VIP must be resolved by DNS.
The client knows that there is only the SCAN Hostname, which is configured in the connection string.
Once the connection is requested Oracle Clusterware redirects the connection to one of the VIP hostname which must be resolved by DNS.
Regards,
Levi Pereira

Assigning role to role doesn't work when applying Database security model

I applied Oracle Database security model for BI Publisher.
then I create some roles and users and assigned roles to users in Oracle Database.
i also assigned appropriate folders to each role in BI Publisher.
the users with direct roles worked successfully but i got problem when i assigned roles to a super role, and assigned this role to a super user.
the super user could only access guest folder.
Please help me.
thanks.
Daniel
Edited by: user13344498 on Jul 5, 2010 11:13 PM

Add a Role to a Role:
1. From the Security Center, select Roles and Permissions; this will invoke the
Security Center page. Here you can see the list of existing roles and permissions.
2. Select the Add Roles icon for the Role.
3. Select the desired role from the Available Roles list and use the Move shuttle
button to move it to the Included Roles.
this is from "Oracle® Business Intelligence Publisher User's Guide Release 10.1.3.2 Part No. B40017-01" book, but the security model is BI Publisher Security.

Connect to local oracle database at form design with Win98 or Me

Hi all,
Is there a possible way to connect to a local oracle database when you design a form in Win98 or Me?
Thank you

is ur database up and running?
are u able to log on personal oracle database?
if so u can log on from forms to database..

How to save data model design in pdf or any format..?

how to save data model design in pdf or any format..?
i ve created design but not able to save it any mage or pdf format

File -> Print Diagram -> To PDF File

How to use icons (database, database backup, save, delete etc.) in Oracle f

Hi Everyone,
I am using Oracle forms 5.
I want to use iconic buttons in Oracle forms 5 for database, database backup, save, delete etc.
Example:
Like Oracle Enterprise Manager, a GUI tool, we can see the different icons for different items (icon for database backup, database etc).
How should I get these icons? How should I attach these icons to the buttons/Image item in Oracle Forms ?
Should I give the file path of these icons in property palette of an item in Oracle forms?
If yes, then which property of item, will I use in order to attach the icons?
Please send the solution.
If some one can also send the related icons, I will thankful to him.
Regards
Martin

Hi FRANKS,
Thanks for your useful information.
WIth regards to attach icons to button/text item in Oracle forms,I am still facing problem.
As you said, I created the parameter/variable UI_ICONS in Forms Home and gave the value pointing to the directory holding the .ico files.
And then set the iconic property of the button and the icon's name without its extension.
But it didn't work.Could ypu please let me know what is going wrong?
I am thankful to you.
Martin

Performance impacts of attributes versus entities in data model design

I'm trying to understand the performance implications of two possible data model designs.
Here's my entity structure:
global > the person > the account > the option
Typically at runtime I instantiate one person, one account, and five option 's.
There are various amounts determined by the person's age that need to be assigned to the correct option.
Here are my two designs:
Design one
attributes on the person entity:
the person's age
the person's option 1 amount
the person's option 2 amount
the person's option 3 amount
the person's option 4 amount
the person's option 5 amount
attributes on the option endity:
the option's amount
supporting rule table:
the option's amount =
the person's option 1 amount if the option is number 1
the person's option 2 amount if the option is number 2
the person's option 3 amount if the option is number 3
the person's option 4 amount if the option is number 4
the person's option 5 amount if the option is number 5
Design two
attributes on the person entity:
the person's age
attributes on the option entity:
the option's amount
the option's option 1 amount
the option's option 2 amount
the option's option 3 amount
the option's option 4 amount
the option's option 5 amount
supporting rule table:
the option's amount =
the option's option 1 amount if the option is number 1
the option's option 2 amount if the option is number 2
the option's option 3 amount if the option is number 3
the option's option 4 amount if the option is number 4
the option's option 5 amount if the option is number 5
Given the two designs, I can see what looks like an advantage for Design one in that at runtime you have less attributes (6 on the one pension member + 1 on each of 5 options =11) than Design two (1 on the one pension member + 6 on each of 5 options = 31), but I'm not sure. An advantage for Design two might be that the algorithm has to do less traversing of the entity structure: the supporting rule table finds everything for the option's amount on the option.
Either way there is a rule table to determine the amounts:
Design one
the person's option 1 amount =
2 if the person's age = 10
5 if the person's age = 11
7 if the person's age = 12, etc.
Design two
the option's option 1 amount =
2 if the person's age = 10
5 if the person's age = 11
7 if the person's age = 12, etc.
Here it looks like the rulebase would have to do more traversing of the entity structure for Design two.
Which design is going to have better performance with a large amount of rules, or would it make a difference at all?

Hi!
In our experience you only need to think about things like this if you were dealing with 100s or 1000s of instances (typically via ODS). As you have a very low number, the differences will be negligible, and you should (usually) go with the solution which is the most similar to the source material or the business user's understanding. I also assume this is an OWD project? Which can be even better, since the inferencing is done incrementally when new data is added to the rulebase, rather than in one "big bang" like ODS.
It looks like design 1 is the simplest to understand and explain. I'm just wondering why you need the option entity at all, since it seems like a to-one relationship? So the person can only have one option 1 amount, one option 2 amount etc, and there are only ever going to be (up to) 5 options...is that assumption correct? If so, you could just keep these as attributes on the person level without the need for instances. If there are other requirements for an option instance then of course, use them, but given the information here, the option entity doesnt seem to be needed. That would be the fastest of all :-)
Either way, as the number of instances is so low, you should have nothing to worry about in terms of performance.
Hope this helps! Write back if you have any more info / questions.
Cheers,
Ben

Process modelling : Design patterns & Best Practices

Hi
Could some one please suggest/share any technical information or documents tha's related to 'Process modelling - Design Patterns & Best Practices'
Thanks in Advance
Santosh K.
Edited by: Santosh539 on Jul 29, 2010 4:07 PM

Hi Santosh,
There is no specific site with all the information you asked for.
But I think these links would be helpful...
on Work Flow Patterns: http://www.workflowpatterns.com/
on BPM Service Pattern: http://enterprisearchitecture.nih.gov/ArchLib/AT/TA/WorkflowServicePattern.htm
HTH
Sharma

WINDOWSNT에서 기존 DATABASE를 이용하여 새로운 DATABASE구성 방법

제품 : ORACLE SERVER
작성날짜 : 2001-01-03
WINDOWSNT에서 기존 DATABASE를 이용하여 새로운 DATABASE구성 방법
=============================================================
database를 완전히 새로 생성하는 대신, 기존에 사용하던 database와 완전히
동일한 형태의 새로운 database를 구성할 필요가 생길 수 있다.
즉, 기존 db의 datafile를 그대로 copy하여 새로운 db를 구성하고자 하는 경우,
아래의 순서대로 작업하면 된다.
단, 이때 기존 database와 db_name과 oracle_sid는 다르게 되며, 이 내용은
Oracle 8.1.6에서 test되었다.
ORACLE_HOME: d:\orant
기존 database의 db_name, oracle_sid: OLDDB
새로운 database의 db_name, oracle_sid:NEWDB
1. olddb에서 controlfile생성 문장을 다음과 같이 하여 얻는다.
dos>svrmgrl
SVRMGR>connect internal
SVRMGR>alter database backup controlfile to trace;
SVRMGR>select value from v$parameter where name = 'user_dump_dest';
2. olddb를 shutdown시키고, datafile과 redo log file을 newdb를 위한
directory에 copy해둔다.
원하는 경우 file이름도 임의로 변경해도 된다.
olddb를 shutdown immediate나 normal로 정상적으로 shutdown시킨 경우
datafile만 copy하여 두어도 된다.
이와 같이 olddb를 shutdown시키고 datafile을 copy하거나, 혹은 olddb를
shutdown시키지 못하는 경우 old db의 hot backup을 이용할 수도 있다.
hot backup을 이용하는 경우 hot backup이후의 archive file도 이용된다.
3. controlfile을 newdb에 맞게 변경한다.
(1) 1에서 user_dump_dest에 나타난 directory에서 최근의 .trc file을 확인하고,
이 create controlfile문장만 남기고 startup nomount나 recover문장 등,
앞뒤의 문장들은 모두 지운다.
(2) create controlfile 뒤에 reuse대신 set이라고 지정하고 olddb 이름
부분을 newdb로 변경한다. 그리고 noresetlogs부분을 resetlogs로 변경한다.
변경전: CREATE CONTROLFILE REUSE DATABASE "OLDDB" NORESETLOGS ARCHIVELOG
변경후: CREATE CONTROLFILE set DATABASE "NEWDB" RESETLOGS ARCHIVELOG
(3) datafile과 logfile 지정 부분은 복사해둔 directory를 지정하고, file이름도
변경한 경우 이 controlfile생성 부분에도 변경된 이름으로 바꾸어 적는다.
(4) 이 file을 ora.trc와 같이 간단한 이름으로 변경하여 둔다.
4. initNEWDB.ora를 작성한다.
(1) d:\orant\database\initOLDDB.ora file을 initNEWDB.ora file로 copy한다.
(2) initOLDDB.ora file이 d:\orant\admin\olddb\pfile\initOLDDB.ora file만
지정되어 있다면, newdb와 이와 같은 구조로,
d:\orant\admin\newdb\pfile directory를 생성 후 initOLDDB.ora file을
initNEWDB.ora로 copy한다.
d:\orant\database\initNEWDB.ora file도 새로 생성한 pfile directory밑의
initNEWDB.ora file을 가리키도록 수정한다.
(3) pfile directory의 initNEWDB.ora file에서 olddb를 나타내는 부분을 모두
newdb로 변경하여 둔다.
(4) control_files부분도 newdb에서 controlfile을 저장시켜둘 directory와
사용할 이름으로 지정한다. (아직은 controlfile이 생성되어 있지 않으므로,
여기에서 지정한 directory까지만 존재하면 되며, file은 아래 작업에 의해
생성될 것이다)
(5) 사용하지 않을 parameter는 comment처리한다.
5. oradim을 이용하여 새로운 instance를 생성한다.
dos> ORADIM -NEW -SID newdb -INTPWD oracle -STARTMODE AUTO -PFILE
d:\orant\database\initnewdb.ora
(이것은 편의상 두줄로 적었으나 실제는 한줄에 이어서 적어야한다.)
이렇게 하면 제어판의 서비스에 OracleServiceNEWDB가 시작된다.
6. controlfile을 재생성하여 db이름을 변경한다.
dos>set oracle_sid=newdb
dos>svrmgrl
SVRMGR>connect internal
SVRMGR>startup nomount;
(이미 떠 있다는 오류가 나면 nomount상태인 것이나,
안전하게 shtudown후 다시 startup nomount한다)
SVRMGR>@d:\orant\admin\olddb\udump\ora.trc
(3에서 만들어둔 controlfile생성 문장을 포함한 file을 기술)
SVRMGR>alter database open resetlogs;
7. 정리
원하는 대로 database가 구성되었는지 확인하고, 불필요한 schema나
data부분은 정리하고, 작업하면 된다.
SVRMGR> show parameter db_name

SAP BW SRM Workflow data model design

Hi All,
I have a requirement from my client to design SAP BW SRM Work flow report, in output user is interested for document flow/chain starting from Shopping cart (SC) - Bid invitation (RFx) - Bid (RFx responses) - Purchase order (PO) - Confirmation. There are standard datasources and DSO's for the same but I want to check experts ideas on data model design. I am thinking to build infosets on top of DSO's but it will impact Query performance as data volume for sure will be more and will increase down the line. In addition I need to consider below exceptions or restrictions as well:
1. Document may/may not start with SC for example one possibility is document start at SC and end at Confirmation or start at RFx and end at PO etc.
2. User is expected to see below various possibilities of document chain in report output:
SC - RFx - RFx responses - PO - Confirmation or
SC - RFx - RFx responses or
SC - PO - Confirmation or
SC - RFx - RFx responses - PO
SC - RFx or
RFx - RFx responses or
RFx or
RFx - RFx responses - PO or
RFx - RFx responses - PO - Confir or
PO - Confiramtion or
PO
your help and ideas on this is greatly appreciated
Thanks and Regards,
Reddy

Hi All,
Any inputs or ideas on the data model design? Thanks for your help in advance
Regards,
Reddy

Trouble saving Data Modeler design 4.0EA3

Hello,
I'm having trouble saving a Data Modeler design. I can create and import tables into a physical model; however, when i save the model (File > Data Modeler > Save) it doesn't appear to be saved correctly since the resulting .dmd file is 0 bytes. If i close the design and reopen it, none of the tables that i created appear.
I'm using version SQL Developer Version 4.0.0.13.30 on Windows 7.
Thanks,
Pete

i don't see any recent errors in the datamodeler.log file. the only entries for the last 2 days are:
2013-11-12 11:04:52,116 [AWT-EventQueue-0] INFO DataModelerAddin - Oracle SQL Developer Data Modeler 4.0.0.825
2013-11-12 11:15:12,672 [AWT-EventQueue-0] INFO DataModelerAddin - Oracle SQL Developer Data Modeler 4.0.0.825
2013-11-12 11:26:59,517 [AWT-EventQueue-0] INFO DataModelerAddin - Oracle SQL Developer Data Modeler 4.0.0.825
2013-11-12 16:54:18,313 [AWT-EventQueue-0] INFO DataModelerAddin - Oracle SQL Developer Data Modeler 4.0.0.825
2013-11-13 10:44:03,694 [AWT-EventQueue-0] INFO DataModelerAddin - Oracle SQL Developer Data Modeler 4.0.0.825
2013-11-13 10:49:26,093 [AWT-EventQueue-0] INFO DataModelerAddin - Oracle SQL Developer Data Modeler 4.0.0.825
2013-11-13 11:08:11,679 [AWT-EventQueue-0] INFO DataModelerAddin - Oracle SQL Developer Data Modeler 4.0.0.825
if run sqldeveloper\sqldeveloper\bin\sqldeveloper.exe, the only message in the console is:
LOAD TIME : 205
no other messages.
I have 3 different builds of sql developer 4.x - they all have this problem. My 3.2 build does not have this problem. So, next, i installed the Data Modeler standalone version (4.0.0.825) and created a physical model with just one table - and i was able to save it! The .dmd had the following content (not 0 byte):
<?xml version = '1.0' encoding = 'UTF-8'?>
<OSDM_Design class="oracle.dbtools.crest.model.design.Design" name="test_dm_only" id="986F3685-3223-BAF6-8D69-6C2C4C52718E" version="3.5">
<createdBy>HillsP01</createdBy>
<createdTime>2013-11-13 16:36:18 UTC</createdTime>
<ownerDesignName>test_dm_only</ownerDesignName>
<capitalNames>false</capitalNames>
<designId>986F3685-3223-BAF6-8D69-6C2C4C52718E</designId>
</OSDM_Design>
So, looks like the Data Modeler works, but there's a problem with my installation with the full SQL Developer product. One thing that i noticed is that my full SQL Developer install does not have a full list of logical types. I had to manual create a the ones that i use. In the Data Modeler only install, all of the logical types were available out of the box.

New pc Model design. based on new bios tek. Logic

here is the project image scans made from a drawing.
http://lmtdbin.7pz.me/slmtdnp/proj2014/
I have built older hw like this. and when i found the new bios tek was ok. i have put in a pc model design. should work better.
later i can post the images in this post but for now i only have the image link addr. so later we will see.
but i just got the page up and listing. i even have a windows text exe model. =) enjoy its good. and new. so
and the intel post. =)
https://software.intel.com/en-us/forums/topic/538240
now i have already checked some of the use of this computer. system commands work. and i dont know all about system functions. it is in there. but it depends on how the development is going to be a command like "System ProgName" and then "the
encrypted exe file" though it does not use command. one could be implimented alteast as of Terms
the software development for this model. is very nice and apps should be availdable
looks a little better with a second level to the design. even more space for custom implementation if needed
inother words you or someone could add to the design with the second level added
msg Seriel [NPEWTHDEVELOPMENT335PRODTSGOOD352ENJOYABLENEW-LAPTPMODEL402NITEJENOPUSRE] seriel for my records
and a Good little bin to finsh the day. Thanx and Peace
http://lmtdbin.7pz.me/slmtdnp/listthnx.zip
here is a pdf of the project
http://lmtdbin.7pz.me/slmtdnp/viosepc.pdf
and the proj backup
http://lmtdbin.7pz.me/slmtdnp/viosepg.zip

Just for the hell of it, I decided to turn down my CPU multiplier, pump the bclk to 200, and see if I could get things working with my memory running at 1600. I left the DIMM voltage at Auto in BIOS, and booted into windows. Started up the MSI Overclocking center.... and it was reporting a DIMM voltage of 1.9. I was..... shocked.... I tried to change it to 1.65 in the OC center, but my machine locked, then it rebooted 3 times and reset it's bios settings. Things seem fine, don't think my CPU was damaged.... but seriously, what the hell?
Mechsner, I know you've said you don't trust windows voltage readings. Could this be a case of inaccurate readings? Can the OC center not be trusted at all? It's matched my BIOS settings in the past.... but this time was just scary.

Modelling databases in Oracle Designer environment

Today I had laboratory's which subject was: "Modelling data and designing databases scheme in Oracle Designer environment" and I have to make a report for tommorow. I can't find some answers for questions which our Professor told us to include in the report. I would be very grateful if enyone here can help me.
1) How looks in SQL code definition of the key of the table if relationship have PRIMARY UID attribute?
2) Is there any difference in SQL code between references replying to transferable and not transferable relationships
3) Why some tables have more columns than number of attributes in entities (entities contains the same things that tables)?
My english isn't perfect, sorry for that. But I hope that I wrote that wuestions correctly.
Thanks for any help.

1) a primary UID is a primary key in SQL
2) No.
3) OD entity models don't include inherited referential key attributes, whereas the SQL tables (obviously) require them.

Spatial database model design guidelines?

Are there public guidelines on how to design a Spatial Database
Model?
i.e.
- is it better to have one table of geometries (elements) or is
it better to have many?
- is it better to store structured data (alphanumeric) in the
same table with spatial data or is it better to reference them
with foreign keys?
- etc
I guess all I need is some kind of methodology for building a
spatial model. Is there anything like this available?
Regards

Hi Pablo,
From a database design perspective, spatial data should be
modeled in the same way other data is modeled. For instance, if
you have river data that has 1 row in a database for every river,
then you might add another column in the same table stored with
the other information about the river that includes the location
information about the river. The same would be true of other
information. For instance, if you wanted to store the location
of all of the customers in your customers table, it is simple
another column in the customers table.
<< - is it better to have one table of geometries (elements) or
is it better to have many? >>
So geometries are just column information like other column
information that you store in a table. There shouldn't be
separate tables that hold only geometry information.
<< - is it better to store structured data (alphanumeric) in the
same table with spatial data or is it better to reference them
with foreign keys? >>
Treat spatial data the same way from a design standpoint as other
data.
Hope this helps.
Dan

JDEV 11G TP3 : Private virtual database / prepareSession overriding

I'm implementing PVD in a ADF BC project.
All the business components will access the database using the PVD, with no exception. The documentation explain how to override the prepareSession in application modules. We will have more than one application module and I would prefer to set our context parameters into one place instead of in each application module.
I think it is a better design to override oracle.jbo.server.ApplicationModuleImpl once instead the application modules and change base class to the overrided class in the ADF BC project properties for application modules.
I would like a confirmation for this design.

Found needed confirmation in chapter 35 ADF Developer Guide.
Thank you guys.

Private Virtual Database - Database model design

Similar Messages

Maybe you are looking for