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Where does the permission for a database come from?
Database-level permission can come from membership in the fixed database roles or user-defined database roles in each database. Everyone belongs to the public fixed database role and receives any permission assigned there. Database-level permissions can come from permission grants to users or user-defined database roles in each database.
How are effective permissions determined in SQL Server?
Some types of permissions are not available in some versions of SQL Server.) The effective permissions are the aggregate of both permission systems. A denial of permissions overrides a grant of permissions. If a user is a member of the sysadmin fixed server role, permissions are not checked further, so denials will not be enforced.
What does the DB _ owner fixed database role do?
Members of the db_owner fixed database role can perform all configuration and maintenance activities on the database, and can also drop the database in SQL Server. (In SQL Database and SQL Data Warehouse, some maintenance activities require server-level permissions and cannot be performed by db_owners .)
Can a DB _ securityadmin fixed database role be modified?
Members of the db_securityadmin fixed database role can modify role membership for custom roles only and manage permissions. Members of this role can potentially elevate their privileges and their actions should be monitored.
Can a user see the permissions of another user?
Any user can see their own permissions. To see permissions for other users, requires VIEW DEFINITION, ALTER ANY USER, or any permission on a user. To see user-defined roles, requires ALTER ANY ROLE, or membership in the role (such as public).
Where do I find sys.database _ permissions query?
The following query lists the permissions explicitly granted or denied to database principals. The permissions of fixed database roles do not appear in sys.database_permissions. Therefore, database principals may have additional permissions not listed here.