EF4 Model Problems by using Oracle Views

Hi,
for some views in the EF-Model, I get the message "The table/view does not have a primary key defined and no valid primary key could be inferred. This table/view has been excluded. To use the entity, you will need to review your schema, add the correct keys, and uncomment it", but not for all views. Why?
I add a PK for the view like '("Id" PRIMARY KEY DISABLE NOVALIDATE, ...'--> then I get another Message, because the PK Field iin the view isn't NOT NULL, but "Id" has the value of the row number. What can I do now?
Frank

Hello
To shutdown the Database is no problem. When i first make the shutdown of the DB and then shutdown the server, there is no problem. Just when i wan't to shutdown the server without shutting down DB the error is here.
No entry in Eventlog about oracle......
Thank's

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I also facing the very same problem with Oracle 9i, as400 db2 and WAS 4.0. Have anyone a soultion to this problem? It seems to have something do to with WAS 4.0, because I have noticed that it works fine in WAS 5.0 (which I unfortunatly cannot use in the project).
Best Regards
Per

Tabular Model Best Practice - use of views

Hi,
I've read in some sites that using views to get the model data is a best practice.
Is this related to the fact tables only right? Friendly names can be configured in the model, so views can be used to restrict data volume but besides from that what are the other advantages?
Model needs to know all the relation between tables, so using a unique view that combines joins to present one big view with all the data isn't useful.
Best regards

Yes, I think most people would agree that it isn't helpful to "denormalise" multiple tables into a single view. The model understands the relationships between tables and queries are more efficient with the multiple smaller related tables.
Views can be helpful in giving a thin layer of independence from the data. You might want to change data types (char() to date etc), split first/last names, trim irrelevant columns or simply isolate the model from future physical table changes.
In my view, there aren't any hard and fast rules. Do what is pragmatic and cleanest.
Hope that helps,
Richard

Problems in using html Viewer control

Hi,
I am using a html viewer control .Depending on the organization, I have to display different pages of the same web application in the html viewer control .Now my problem is
if I display one page in my html viewer control ,its showing the same page again in the html viewer control ,even if i give different url in the show_url method of the html viewer control.
Any body knows how to solve this problem ?

Have you tried testing this with the SAPHTML_DEMO1 demo program and just keying in the URLs you want to display?... this demo uses the html_control->show_url method and if you run in debug you'll see it subsequently does a "call method cl_gui_cfw=>dispatch." to trigger the display of the new URL.
Jonathan

Urgent: Some Problem on using Oracle Developer and Oracle 8i

I have download the Oracle Developer from this website.
I follow the instruction and install the Oracle Developer.
After I finished install the Developer, a error message shows:
"user1.pin(20):OS_ERROR whilw spawing if srv60-install Forms60Server -OraHome81d2 port:900mode:Socket batch:yes."
When I login in the SQL Plus 8i using User name: sys
A error message shows "ORA:122-03: Unable to connect to destination"
I can't use the Scheme Builder also and when I open the Net8 Assistant, I can't close the program in a normal way:
Click X on the corner/ Click File->Exit.
Would you help me to solve this problem? Thanks!

The problem that u are unable to login into sql prompt is may be that, you havent install the database or if u have installed it u havent started it.
If u are using windows nt,2000,xp then u can start it from services which is under administrative tools or if u are using 95 or 98 then u have to start the database from the program menu.
The problem that developer net8 assistant doesnt exit is a reality and i also face this problem, I think it is a bug of oracle, and if i started it, i have to endtask it.
Bye
Hasan

EF4 Model Problems by using Oracle Views

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