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SQL Server FAQ - Security Principals Used in SQL Server 2005

By: FYIcenter.com

(Continued from previous topic...)

What Are Security Principals Used in SQL Server 2005?

SQL Server 2005 supports several basic security principals located at different levels:

  • Windows-Level Principals: Windows Local Login and Windows Network Domain Login - Used to control accesses to SQL Server instances.
  • SQL Server-Level Principal: SQL Server Login. - Used to control accesses to SQL Server instances.
  • Database-Level Principal: Database User. - Used to control accesses to database instances.

To access a SQL Server instance, you must use a Windows login or a SQL Server login previously created in that server instance. Once you logged in, you are represented by this login name as your security principal at the server level.

If you select a specific database in the server to use, SQL Server will search that database for a previously user that has been mapped to your login name. If that user is located, you are represented by this user name as your security principal at the database level.

(Continued on next topic...)

  1. What Is the Security Model Used in SQL Server 2005?
  2. What Are Security Principals Used in SQL Server 2005?
  3. What Is the Security Principal at the Server Level That Represents Your Session?
  4. What Is the Security Principal at the Database Level That Represents Your Session?
  5. How To Create a New Login Name in SQL Server?
  6. How To Verify a Login name with SQLCMD Tool?
  7. How To List All Login Names on the Server?
  8. How To Change the Password of a Login Name?
  9. How To Change a Login Name?
  10. How To Disable a Login Name?
  11. How To Delete a Login Name?
  12. How To Create a User Name in a Database?
  13. How To List All User Names in a Database?
  14. How To Find the Login Name Linked to a Given User Name?
  15. How To Verify a User name with SQLCMD Tool?
  16. How To Change the Name of a Database User?
  17. How To Delete an Existing Database User?

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