Basic Security Question

Sep 10, 1999

I'm new to SQL 7.0 and have a basic security question. I want to set up security so that different roles can see different portions of the same tables. In other words, Department A see's its projects from table 1 and Department B users see only their projects from table 1. The results are then linked to the client front end, so that the basic form they input/read off will give them the results from table 1 with only their projects. Is there a simple way to do this with a stored procedure or view, so that the result set can be linked to the form and only differs depending on the role? Thanks for the help.

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Basic Security Question

Sep 30, 2007

Hi,

I'm trying to learn the "correct" way to use security with SQL Server 2005 and .NET 2.0. Let me explain what I've always done in terms of security and why.

Historically, I've created a Users table and a UserPermissions table in my database. The Users table has the username and password, and the UserPermissions table relates to the Users table and has a list of all (application-defined) permissions granted to the user. For example, say the application has features A, B, and C. The administrator might grant features A and C to user John Doe.

The reason I put this table into my database is two-fold. First, it allows me to easily setup a list of features that the application can secure. Second, it allows the application to log into SQL Server using a constant username a password. The application always gets access to the database, but then if the user didn't provide a good username and password, the application logs back out of the database and quits.

The downside to this is that SQL Server doesn't know who's accessing it. So if I wanted to have a trigger that gets the current user, all users appear to be the same person. The upside is that the administrator doesn't need to go into SQL Server and set up new users, and the users aren't aware of the actual username and password used to access the database, so they can't get to it directly.

I'd really like to learn to set up security the right way. What I want is:

A) Each user to be uniquely identified within SQL Server - i.e., each one logs in with his own user id
B) The application has complete control over the database (I want the application to be able to read all tables, for example)
C) The user doesn't have direct access to the database. I don't want the user to be able to load SQL Server Management Studio on his computer and go directly into the database
D) There is some way to grant application-specific features to each user

I would think this has to be a common scenario. Can anyone offer some good tips on how to accomplish what I'm trying to do? Thanks in advance...

-Eric

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Hi,

I am new to SQL 2005, can someone give me some details instructions about how to do below two tasks:

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Many thanks.

PC

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Sql server is running with on a AD-users, not localsystem.

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Hi,

I have posted this issue for a week, haven't got any reply yet, I posted it again and desperately need your help.

The article http://msdn2.microsoft.com/en-us/library/ms365343.aspx says:
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For example, in "Permissions" property of the model, if I checked "Use these roles for each group or user account" without setting any user or group, no matter what users I added to "Model Item Security" with "Secure individual model items independently for this model" checked, NO one user can see the model on report manager and report builder;

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The article also says:

"Security filters are always applied, even for users who have Content Manager or Administrator permissions to the model. To allow administrators or other users to see all rows of an entity on which row-level security is defined, you can create an empty security filter (which always returns True) and then use the filter to grant those users access to all the rows."

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I can only get one result at a time but not both:

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Your help is highly appreciated!

Desperate developer

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-- Edited by longhorn2005

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B

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