How to work with multiple users accessing one database

I am a newbie in oracle.
I want to give access to my oracle database for more users.
I created oracle connection with c# project. The application allow to user to insert data to a database table. Now I want to give access to the different users with a login. Is there any way to give access other users to the same database using their username and passwords?
I'm confused. Please help.
thank you.

In the database, set up your data schema with data tables, views, and stored procedures to support your application.
That schema owner should only be a trusted data administration person. Let's call that schema APP_DATA.
Then you set up another schema called APP_DATA_USERS with no privileges and no data.
Then you create an Oracle ROLE object called APP_DATA_ROLE.
You grant the app_data_role to the app_data_user account.
You then grant object permissions in the APP_DATA_ROLE that you want the app_data_user to have for the app_data data objects, like Create SESSION, SELECT on TABLE X. or SELECT, INSERT, UPDATE on TABLE Y.
Now the APP_DATA_USERS only has specific permissions needed on specific app_data data objects that you control by the app_data_role.
Then your application only opens connections to Oracle via the single APP_DATA_USERS account
which is constrained by the APP_DATA_ROLE permissions on what can be done in the data schema APP_DATA.
in your web or app config you create the connection information for the single app_data_user account.
Putting the database aside, you now create the application layer with login controls so many users can use the application.
But when they need data, the application only makes a connection to the single APP_DATA_USERS account
Oracle ODP.NET auto handles the multiple session connections by the multiple application users to the single APP_DATA_USERS account.
In summary the multiuser access is controlled by the application
all making connections (sessions) with a single, limited privilege app_data_user account on the database side.

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Message was edited by:
user488209

> Oracle and JBoss and Hibernate which is my
persistence layer so Pl/SQL is not needed (right?)
Simon, I would have taken a virtual lead pipe to you if you worked in our dev shop and made that statement. :-)
Data persistance layers in the middle tier are fundementally flawed.
Why? Because they attempt to do what the database is already doing. The database's core function is data persistance, data integrity, data processing.
It does this better than any other piece of software in the architecture. If not, then why use a database tier (usually the most expensive one) anyway? What are the benefits? Why not simply persist the data in the middle tier and use file-based (not database-based) storage mechanism?
Simple example. An employee object persist in the middle tier. Performance becomes a problem. JBOSS and other app server s/w scaled by adding more h/w. So now you have that employee object persisting as copies across several app platforms.
One of the fundemental relational principles of dealing with a single copy of data is violated. Multiple copies exist. They need to be kept in sync'ed. Locking needs to be handled in a distributed fashion. And what happens when a batch process on the database, oblivious to the persistant copies in the app tier, changes that employee's data?
Guess what.. the database does all this for you. Locking. Data integrity. Scalability. Etc.
AND IT DOES IT BETTER THAN WHAT THE APP TIER CAN!
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Oracle has in excess of a million lines of PL/SQL source code for the Oracle Applications product suite. So PL/SQL is a "serious" language.. not something that is simply used for the odd thing.
Performance wise? Oracle Replication is entirely written in PL/SQL - and not in something like C/C++ (which usually also outperforms Java).
90% of all the code that we write, is PL/SQL. The remainder is Java (JBOSS) and Perl with some Pro*C legacy stuff (most of which is rewritten as PL/SQL). In fact, I think the guys now write more Perl code than Java (doing processing that needs to be done totally outside Oracle). And JBOSS is an integrated architecture that we're using... (we even have a JBOSS cluster with a Linux Virtual Server/Director as gateway)
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i have the follwing issue:
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- User B is the graphics designer. He does the Artwork
- Usee C should do the textutal corrections
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cheers
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Thanks for the quick responses.
The sharing of the data is not the problem, in fact, cloud storage can be one of the solutions. But regardless, if people work on different locations or in the same intranet, it can always happen, that designer B goes on holiday and there needs to be done a change on one of the articles inside the folio that B has been working on. It is a pitty, that Designer C cannot take over and do the changes without either having to have user/password of B or "destroying" the folio settings, removing the article completely and re-entering it drom scratch (with all correct settings, namings etc) what makes B having to do the same, as soon as he comes back. This might also have to do with the absolute path references used in folios instead of logical ones (every user can set as "folioroot" on his computer) what also would make the dropbox (or adobe cloud) approach work, as everybody would share the same subfile structure and could "jumpstart" working on the folio.
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We will now create shared working users per project, so everybody involved in the project will use that user.
Thomas

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