Database Design Issue

I start some project but i have feel difficulty in database Design.
How i can improve my Design ability.

There is a very good beginners' eBook at That'll Do IT - Access Basics The author, Crystal does an excellent job of describing database design.
Bill Mosca
www.thatlldoit.com
http://tech.groups.yahoo.com/group/MS_Access_Professionals

Similar Messages

A web service design issue with patterns

Hello,
I�d like to ask for your help in the following design issue:
I need to create an email sending web service (with Axis). Only just one method which returns with an integer return code. This handles the following:
- based on the given parameters gets the email addresses from an
LDAP server (with netscape ldap for java)
-     makes a cache from them (only after a timeout period will be the cache
refreshed) (don�t know what tool to use for this)
-     selects html templates which to be sent based on the given parameters
-     sends emails with the appropriate templates (with Velocity)
-     the whole process is logged (with log4j)
I have to write the code as generic as possible. I know that some design pattern should be used for this. (some from GoF , and I know there exists design patterns specially created for web services as well).
Could you enumerate me which patterns (and for what part of the program) would be the best choice to solve this problem? I have read through some books about patterns, but don�t have the knowledge to pick up the right one for a concrete problem like this..
Thank you in advance,
nagybaly

Hello,
I�d like to ask for your help in the following design
issue:
I need to create an email sending web service (with
Axis). Only just one method which returns with an
integer return code. This handles the following:Lots of responsibilities here. You would do well to break this up into several classes that you can test separately.
I would also advise that you not embed all this in a servlet. Make a service that collaborates with several objects to accomplish the task and let the serlvet just call it.
.> - based on the given parameters gets the email
addresses from an
LDAP server (with netscape ldap for java)I'd recommend Spring's LDAP module. Pretty terrific stuff.
cache from them (only after a timeout period will be
the cache
refreshed) (don�t know what tool to use for
this)Maybe EhCache or OsCache or something like that.
-     selects html templates which to be sent based on
the given parametersWhere does this come from? Certainly not the LDAP. A relational database? Write a DAO for the document template.
-     sends emails with the appropriate templates (with
Velocity)Have an e-mail sender service using Java Mail.
-     the whole process is logged (with log4j)Easily done.
I have to write the code as generic as possible. I
know that some design pattern should be used for
this. No pattern. There might be patterns, if you say that the DAOs to access the LDAP and RDB are patterns.
Stop thinking patterns and start thinking objects.
(some from GoF , and I know there exists design
patterns specially created for web services as
well).Nope.
Could you enumerate me which patterns (and for what
part of the program) would be the best choice to
solve this problem? I have read through some books
about patterns, but don�t have the knowledge to pick
up the right one for a concrete problem like this..
Thank you in advance,
nagybalyYou haven't read them because they aren't there. Your problem is pretty specific, even if it's common.
%

SOA Design issues and other politics

Hi all,
I have a requirement for live data feed from external system. I am using SOA11g and JDeveloper 11g. There are two designs, one proposed and other I have in mind to achieve this.
1) The external system sends XML data in a push model to the exposed SOA Web Service (uses one-way messaging mode) at my end. I then store the message in the database
a) In this design how do we keep track of all messages that are sent are received. Is there a better solution.
2) The third party is proposing a Web Service at their end. The application being real-time (i.e any changes at their DB end i.e some DB tables, should be propogated across to our web services using XML messages). I will have to keep sending XML requests on a regular basis (say every 5 seconds). Can I achieve such type of Web Service client using SOA 11g?
a) Here I have a design issue, that the data feed is live, why do the WS client have to keep sending requests at regular intervals. Why can't the third party send data whenever there is an update/insert at their database end. Third party is coming up with advantages like loose coupling and making the Web Service more generic. I doubt all the claims give that the applications are B2B and we are the other ones who will be using their web services for the time being. Their may be other two organizations later on.
b) If the first request is not yet returned, will the second request after 5 seconds be blocked.
This designs and solutions are becoming quite political across organizations, and got to do with who will take the blame for data issues. I just want a proper SOA design for live data feed. Please suggest the advantages and disadvantages of both if anybody has been through this path.
Thanks
Edited by: user5108636 on 1/09/2010 18:19

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Database design for share market

Hi One and All,
I have a query regarding, design of New database....
Right now I joined as a Database administrator as a fresher, my superior has given me one assignment i.e. I have to create a sample database on Share market. As per his requirement the tables should be Issuer table, Security table, Broker table, INvestor table, Account table, Order table, Tradeing table. He said that I have to prepare the fiellds for this tables and relation ships and whole database structure.... I can prepare relations ships and database structure but the problem is, I don't know how the stock market is really works. If any body help me in this issue I am very thank full to him.
I need just the table feilds, if I get this rest of job i wil do by studying the subject of share market.
Thank You

Hi,
As per Hemant this forum is not appropriate for this question. However you have to analyze the system by meetings with stock broker at stock Exchange or to the client for which you are designing the system. Ask your superior to arrange meeting with client and then ask question to him so that you can made database design for them.
Regards,
Abbasi

Design Issue: Localization using Lookup OR Dependency Injection

Hello Forums!
I'm having a design issue regarding localization in my application. I'm using Spring Framework (www.springframework.org) as an
application container, which provides DI (dependency injection) - but the issue is not Spring- but rather design related. All localization
logic is encapsulated in a separate class ("I18nManager"), which basically is just a wrapper around multiple Java ResourceBundles.
Right now localization is performed in the "traditional" look-up style, e.g.
ApplicationContext.getMessage("some.message.key");
where ApplicationContext is a wrapper around the Spring application context and getMessage(...) is a static method on that
context. The advantage of that solution is a clean & simple interface design, localization merely becomes a feature of classes, but
is not part of their public API. The only problem with that approach is the very tight coupling of Classes to the ApplicationContext, which
really is a problem when you want to use code outside of an application context. The importance of this problem increases if one considers
that I18N is a concern that can be found in every application layer, from GUI to business to data tier, all those components suddenly depdend
on an application context being present.
My proposed solution to this problem is a "Localizable" interface, which may provide mutators for an "I18NManager" instance that can be
passed in. But is this really a well-designed solution, as almost any object in an application may be required to implement this interface?
I'm too concerned about performance: the look-up solution does not need to pass references to localizable objects, whereas my proposed solution
will require 1 I18NManager reference per localizable object, which might cause troubles if you let's say load 10.000 POJOs from some database that
are all localizable.
So (finally) my question: how do you handle such design issues? Are there any other solutions out there that I'm not aware of yet? Comments/Help welcome!

michael_schmid wrote:
Hello Forums!
I'm having a design issue regarding localization in my application. I'm using Spring Framework (www.springframework.org) as an
application container, which provides DI (dependency injection) - but the issue is not Spring- but rather design related. All localization
logic is encapsulated in a separate class ("I18nManager"), which basically is just a wrapper around multiple Java ResourceBundles.Why do you think you need a wrapper around resource bundles? Spring does very well with I18N, as well as Java does. What improvement do you think you bring?
Right now localization is performed in the "traditional" look-up style, e.g.
ApplicationContext.getMessage("some.message.key");
where ApplicationContext is a wrapper around the Spring application context and getMessage(...) is a static method on that
context. Now you're wrapping the Spring app context? Oh, brother. Sounds mad to me.
The advantage of that solution is a clean & simple interface design, localization merely becomes a feature of classes, but
is not part of their public API. The only problem with that approach is the very tight coupling of Classes to the ApplicationContext, which
really is a problem when you want to use code outside of an application context. The importance of this problem increases if one considers
that I18N is a concern that can be found in every application layer, from GUI to business to data tier, all those components suddenly depdend
on an application context being present.One man's "tight coupling" is another person's dependency.
I agree that overly tight coupling can be a problem, but sometimes a dependency just can't be helped. They aren't all bad. The only class with no dependencies calls no one and is called by no one. We'd call that a big, fat main class. What good is that?
Personally, I would discourage you from wrapping Spring too much. I doubt that you're improving your life. Better to use Spring straight, the way it was intended. I find that they're much better designers than I am.
My proposed solution to this problem is a "Localizable" interface, which may provide mutators for an "I18NManager" instance that can be
passed in. But is this really a well-designed solution, as almost any object in an application may be required to implement this interface?I would say no.
I'm too concerned about performance: the look-up solution does not need to pass references to localizable objects, whereas my proposed solution
will require 1 I18NManager reference per localizable object, which might cause troubles if you let's say load 10.000 POJOs from some database that
are all localizable.
So (finally) my question: how do you handle such design issues? Are there any other solutions out there that I'm not aware of yet? Comments/Help welcome!I would use the features that are built into Spring and Java until I ran into a problem. It seems to me that you're wrapping your way into a problem and making things more complex than they need to be.
%

DataBase Design For Library maintenance

Sir I am doing my Final Year B.sc(Comp.sci), I am having my Oracle Project to do things.
I just wan't a Detailed DataBase Design for
Library Maintenance
Please Could you help me in terms of DataBase Design......

Suyambu
You have asked several questions of this nature.
A forum cannot be expected to take the place of a comprehensive book or training course.
Please ask reasonable questions about distinct issues which can be given succinct replies.

DataBase Design For Library maintanence

Sir I am doing my Final Year B.sc(Comp.sci), I am having my Oracle Project to do things.
I just wan't a Detailed DataBase Design for
Library Maintanence
Please Could you help me in terms of DataBase Design......

Suyambu
You have asked several questions of this nature.
A forum cannot be expected to take the place of a comprehensive book or training course.
Please ask reasonable questions about distinct issues which can be given succinct replies.

Should I learn database design and development skills?

Hi everyone,
I am a junior Oracle with 3 years experience. I have got Oracle 10g and 11g OCP certifications.
I know how to install, configure,monitor and maintain databases, but I don't know hot to design and develop databases.
I know that employers demand of us more and more. Database design and development skills are the basic requirements.
Should I start to learn database design courses?
If yes, please recommend me the books(or Oracle Docs) of Getting Started.
Thank you very much
Edited by: user8096439 on Feb 24, 2009 11:59 AM

user8096439 wrote:
Are the following books suitable for a getting started designer?
2 Day Developer Guide
2 Day Plus Application Express Developer's Guide
2 Day Plus Java Developer Guide
2 Day Plus .NET Developer Guide
2 Day Plus Locator Developer Guide
2 Day Plus PHP Developer GuideYou could do worse, but I think before you plunge into specific technologies (java, .NET, etc) I'd study up on basic data analysis and normalization.
Google "data normalization" and study up on 1st, 2d, and 3d Normal Form.
Go through the Oracle docs and get very familiar with the different data type (varchar, number, date, etc)
Read the Tom Kyte Books.
Programmers keep wanting to re-invent what the database already does, and treat the database as a data dump. As a result, I'd focus on analysis and design issues before approaching books on programming technology. (and I was an applications programmer/analyst for about 15 years before transitioning to DBA)

Dependent Permission database design

I want to know your thoughts regarding dependent permission database design.
The dependent database design that I refer to comes from the below link:
office.microsoft.com/en-sg/windows-sharepoint-services-help/permission-levels-and-permissions-HA010100149.aspx
Please put http:// in front of the office.microsoft.com. I cannot put the link due to my account verification issue
How should I implement the permission and its dependent permission like the one shown in the above url in database.
I am planning to create similar structure for .NET and SQL Server app
Thanks

Here is the link:
http://office.microsoft.com/en-sg/windows-sharepoint-services-help/permission-levels-and-permissions-HA010100149.aspx
Can you share more details with us? Any design? Any programming?
Kalman Toth Database & OLAP Architect
IPAD SELECT Query Video Tutorial 3.5 Hours
New Book / Kindle: Exam 70-461 Bootcamp: Querying Microsoft SQL Server 2012

Requirements for database design and installation

Hi,
As a database administrator, how to find out whether the database is design and installed properly?
Can you please what would be the requirements to be considered towards the databse design for application developer ?
thanks heaps !!!!

Mohamed ELAzab wrote:
regarding that the number of execution is the main thing that affects the performance i said that already above " the application executed it 30 000" but you didn't read my answer correctly. I did not respond to that "answer" of yours as it was not part of your posting that I responded too. In your response, which I quoted, talked about non-sharable SQL retrieving 20 rows and after 3 years it retrieving a million rows. This has no bearing on whether the SQL is sharable or not.
I don't agree with you regarding that the design is not being done regarding considering the performance bottlenecks.So you decide on what the bottlenecks are up front, and then use these as database design considerations? I fail to see any logic or merit in such an approach.
i want to let you know that we in the telecoms environment have many problems in our databases because the people who designed those applications didn't take performance in consideration.I understand too well - and it is not that they did not take performance into consideration when designing the database, it is because the design is just plain wrong from the start.
You do not need to consider amount of memory available, number and speed of CPUs, bandwidth and speed of the I/O system, in order to design a database. These have no relevance at all during the design phase. Especially as the h/w that will run the design in production in a year's time can be drastically different from the h/w that will be used today.
No, instead you use a proper and correct design methodology and data modeling approach. Why? Because such a design by its very nature will make optimal use of h/w resources and will provide data integrity, scalability and performance.
Again i think design of the database application must take database performance bottlenecks in consideration like application which doesn't use bind variables if they took into consideration to avoid that it will help the DBA in the future but unfortunately most people doesn't do that. And as I said - using bind variables or not has absolutely nothing to do with the basic question asked in this thread: "+what are the requirements of database design+".
How does using/not using bind variables influence the design of a table? Determine whether an entity is in 3NF? What the unique identidiers are for an entity? These are the design considerations for a database.. not bind variables.
Yes, SQLs not using bind variables can cause performance problems. Not paying the electricity bill can cause a power outage for the database server. So what? These issues have no relevance to database design.

Database design to support parameterised interface with MS Excel

Hi, I am a novice user of SQL Server and would like some advice on how to solve a problem I have. (I hope I have chosen the correct forum to post this question)
I have created a SQL Server 2012 database that comprises approx 10 base tables, with a further 40+ views that either summarise the base table data in various ways, or build upon other views to create more complex data sets (upto 4 levels of view).
I then use EXCEL to create a dashboard that has multiple pivot table data connections to the various views.
The users can then use standard excel features - slicers etc to interrogate the various metrics.
The underlying database holds a single days worth of information, but I would like to extend this to cover multiple days worth of data, with the excel spreadsheet having a cell that defines the date for which information is to
be retrieved.(The underlying data tables would need to be extended to have a date field)
I can see how the excel connection string can be modified to filter the results such that a column value matches the date field,
but how can this date value be passed down through all the views to ensure that information from base tables is restricted for the specied date, rather than the final results set being passed back to excel - I would rather not have the server resolve the views
for the complete data set.
I considered parameterisation of views, but I dont believe views support parameters, I also considered stored procedures, but I dont believe that stored procedures allow result sets to be used as pseudo tables.
What other options do I have, or have I failed to grasp the way SQL server creates its execution plans and simply having the filter at the top level will ensure the result set is minimised at the lower level? (I dont really want the time taken for the dashboard
refresh to increase - it currently takes approx 45 seconds following SQL Server Engine Tuning Advisor recommendations)
As an example of 3 of the views,
Table A has a row per system event (30,000+ per day), each event having an identity, a TYPE eg Arrival or Departure, with a time of event, and a planned time for the event (a specified identity will have a sequence of Arrival and Departure events)
View A compares seperate rows to determine how long between the Arrival and Departure events for an identity
View B compares seperate rows to determine how long between planned Arrival and Departure events for an identity
View C uses View A and view B to provide the variance between actual and planned
Excel dashboard has graphs showing information retrieved from Views A, B and C. The dashboard is only likely to need to query a single days worth of information.
Thanks for your time.

You are posting in the database design forum but it seems to me that you have 2 separate but highly dependent issues - neither of which is really database design related at this point. Rather you have an user interface issue and an database programmability
issue. Those I cannot really address since much of that discussion requires knowledge of your users, how they interface with the database, what they use the data for, etc. In addition, it seems that Excel is the primary interface for your users
- so it may be that you should post your question to an excel forum.
However, I do have some comments. First, views based on views is generally a bad approach. Absent the intention of indexing (i.e., materializing) the views, the db engine does nothing different for a view than it does for any ad-hoc query.
Unfortunately, the additional layering of logic can impede the effectiveness of the optimizer. The more complex your views become and the deeper the layering, the greater the chance that you befuddle the optimizer.
I would rather not have the server resolve the views for the complete data set
I don't understand the above statement but it scares me. IMO, you DO want the server to do as much work as possible since it is closest to the data and has (or should have) the resources to access and manipulate the data and generate the desired
results. You DON'T want to move all the raw data involved in a query over the network and into the client machine's storage (memory or disk) and then attempt to compute the desired values.
I considered parameterisation of views, but I dont believe views support parameters, I also considered stored procedures, but I dont believe that stored procedures allow result sets to be used as pseudo tables.
Correct on the first point, though there is such a thing as a TVF which is similar in effect. Before you go down that path, let's address the second statement. I don't understand that last bit about "used as pseudo tables" but that sounds more
like an Excel issue (or maybe an assumption). You can execute a stored procedure and use/access the resultset of this procedure in Excel, so I'm not certain what your concern is. User simplicity perhaps? Maybe just a terminology issue? Stored
procedures are something I would highly encourage for a number of reasons. Since you refer to pivoting specifically, I'll point out that sql server natively supports that function (though perhaps not in the same way/degree Excel does). It
is rather complex tsql - and this is one reason to advocate for stored procedures. Separate the structure of the raw data from the user.
(I dont really want the time taken for the dashboard refresh to increase - it currently takes approx 45 seconds following SQL Server Engine Tuning Advisor recommendations)
DTA has its limitations. What it doesn't do is evaluate the "model" - which is where you might have more significant issues. Tuning your queries and indexing your tables will only go so far to compensate for a poorly designed schema (not that
yours is - just a generalization). I did want to point out that your refresh process involves many factors - the time to generate a resultset in the server (including plan compilation, loading the data from disk, etc.), transmitting that data over the
network, receiving and storing the resultset in the client application, manipulating the resultset into the desired form/format), and then updating the display. Given that, you need to know how much time is spent in each part of that process - no sense
wasting time optimizing the smallest time consumer.
So now to your sample table - Table A. First, I'll give you my opinion of a flawed approach. Your table records separate facts about an entity as multiple rows. Such an approach is generally a schema issue for a number of reasons.
It requires that you outer join in some fashion to get all the information about one thing into a single row - that is why you have a view to compare rows and generate a time interval between arrival and departure. I'll take this a step further and assume
that your schema/code likely has an assumption built into it - specifically that a "thing" will have no more than 2 rows and that there will only be one row with type "arrival" and one row with type "departure". Violate that assumption and things begin to
fall apart.  If you have control over this schema, then I suggest you consider changing it. Store all the facts about a single entity in a single row.  Given the frequency that I see this pattern, I'll guess that you
cannot. So let's move on.
30 thousand rows is tiny, so your current volume is negligible. You still need to optimize your tables based on usage, so you need to address that first. How is the data populated currently? Is it done once as a batch?  Is it
done throughout the day - and in what fashion (inserts vs updates vs deletes)? You only store one day of data - so how do you accomplish that specifically?  Do you purge all data overnight and re-populate? What indexes
have you defined? Do all tables have a clustered index or are some (most?) of them heaps?   OTOH, I'm going to guess that the database is at most a minimal issue now and that most of your concerns are better addressed at the user interface
and how it accesses your database. Perhaps now is a good time to step back and reconsider your approach to providing information to the users. Perhaps there is a better solution - but that requires an understanding of your users, the skillset of
everyone involved, what you have to work with, etc. Maybe just some advanced excel training? I can't really say and it might be a better question for a different forum.
One last comment - "identity" has a special meaning in sql server (and most database engines I'm guessing). So when you refer to identity, do you refer to an identity column or the logical identity (i.e., natural key) for the "thing" that Table A is
attempting to model?

Security design issue

Hi Folks,
I've a security design issue using J2EE architecture framework in my
project..
Proj Requirement:
i) User Logs-into a health b2b/b2c portal website...
ii) Check the user exist in the database or LDAP directory service.
iii) If exist user then check the role Patient/Insurance Provider/Physician?
iv)If Patient then display his personal health record history.
else Insurance Provider then display about Insurance Policy information,
which he can update/create insurance for entered patient id. If patient has
granted access to Insurance Provider
and if Physician then display about hospital information like
waiting patients,sending appointments,etc..
The above security access control role & policy has to be implemented
very strong. so that other user cannot view/update someone health records..
Development tool:WebLogic Server/Oracle/LDAP.. on Linux
Security Problem:
i)What is the best security solution for the above requirement?
ii)How do I authenticate/validate user using J2EE security framework?
Can anyone explain in details or steps to implement?
Thanks,
-raj-

I'm assuming that your using WLS 6, if so check out (I know we cover this in
the documentation but I'm guessing at the title) the "securing your site"
guide. Some of what you're planning the WLS server can protect through good
ACL usage. I'd recommend creating at least three groups (patient, provider,
physician), clearly the danger lies in having a user who is a member of more
than one group. I'd recommend implementing your own role checking at both
the servlet and EJB levels to fully enforce information access, using
servlet state and stateful session beans should help.
Alex
Raj <[email protected]> wrote in message
news:[email protected]..
Hi Folks,
I've a security design issue using J2EE architecture framework in my
project..
Proj Requirement:
i) User Logs-into a health b2b/b2c portal website...
ii) Check the user exist in the database or LDAP directory service.
iii) If exist user then check the role Patient/InsuranceProvider/Physician?
iv)If Patient then display his personal health record history.
else Insurance Provider then display about Insurance Policy information,
which he can update/create insurance for entered patient id. If patienthas
granted access to Insurance Provider
and if Physician then display about hospital information like
waiting patients,sending appointments,etc..
The above security access control role & policy has to be implemented
very strong. so that other user cannot view/update someone healthrecords..
>
Development tool:WebLogic Server/Oracle/LDAP.. on Linux
Security Problem:
i)What is the best security solution for the above requirement?
ii)How do I authenticate/validate user using J2EE security framework?
Can anyone explain in details or steps to implement?
Thanks,
-raj-

Is ADF meant for database designed with vertical schema ?

Hi,
I want to know if ADF 11g is meant for database designed with vertical schema where even the column names will be rows in a generic table?
Thanks in advance.
Edited by: user8925296 on Apr 12, 2010 10:06 AM

The short answer is no...
What you are calling a "vertical schema" is what others have called an entity-attribute-value or universal data model schema. I'd advise you to do some open-minded research about these types of schemas if you are developing a new application before you proceed. They sound great in practice, but have quite inherent usability and scalability issues. [url http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:2314483800346542969]This might be a good place to start...
John

Urgent help needed; Database shutdown issues.

Urgent help needed; Database shutdown issues.
Hi all,
I am trying to shutdown my SAP database and am facing the issues below, can someone please suggest how I can go about resolving this issue and restart the database?
SQL> shutdown immediate
ORA-24324: service handle not initialized
ORA-24323: value not allowed
ORA-01089: immediate shutdown in progress - no operations are permitted
SQL> shutdown abort
ORA-01031: insufficient privileges
Thanks and regards,
Iqbal

Hi,
check SAP Note 700548 - FAQ: Oracle authorizations
also check Note 834917 - Oracle Database 10g: New database role SAPCONN
regards,
kaushal

Design issue with the multiprovider

Design issue with the multiprovider :
I have the following problem when using my multiprovider.
The data flow is like this. I have the info-objects IobjectA, IobjectB, IobjectCin my Cube.(Source for this data is s-systemA)
And from another s-system I am also loading the masterdata for IobjectA
Now I have created the multiprovider based on the cube and IobjectA.
However, surprisingly join in not workign in multiprovider correctly.
Scenario :
Record from the Cube.
IObjectA= 1AAA
IObjectB = 2BBB
IObjectC = 3CCC
Records from IobjectA =1AAA.
I expect the record should be like this :
IObjectA : IObjectB: IObjectC
1AAA       :2BBB       :3CCC
However, I am getting the record like this:
IObjectA : IObjectB: IObjectC
1AAA       :2BBB       :3CCC
1AAA         : #             :#
In the Identification section I have selected both the entries for IobjectA still I am getting this error.
My BW Version is 3.0B and the SP is 31.
Thanks in advance for your suggestion.

May be I was not clear enough in my first explanation, Let me try again to explain my scenario:
My Expectation from Multi Provider is :
IObjectA
1AAA
(From InfoObject)
Union
IObjectA     IObjectB     IObjectC
1AAA     2BBB     3CCC
(From Cube)
The record in the multiprovider should be :
IObjectA     IObjectB     IObjectC
1AAA     2BBB     3CCC
Because, this is what the Union says .. and the Definition of the multiprovider also says the same thing :
http://help.sap.com/saphelp_bw30b/helpdata/EN/ad/6b023b6069d22ee10000000a11402f/frameset.htm
Do you still think this is how the behaviour of the multiprovider.. if that is the case what would be the purpose of having an infoobject in the multiprovider.
Thank you very much in advance for your responses.
Best Regards.,
Praveen.

Database Design Issue

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