Publications of Atif Shehzad on MSSQLTips.Performance Tunning and Optimization (58).SETUSER may still be used in new versions but as a deprecated feature.Īlso read a EXECUTE AS related tip on.
Impersonation through EXECUTE AS statement was intrioduced in SQL Server 2005.
#Sql server sa account definition code#
According to BOL impersonation context is changed back in following three conditions.įollowing code and result would demonstrate the impersonation of a user through EXECUTE AS User statement We may analyze that login context was switched and was revert at the end. Discussing the internals and flow of impersonation is beyond the scope of this post.įollowing is the code and result to prove the impersonation of a login by using EXECUTE AS Login However impersonation permissions may be granted to required login/user. sysadmin and dbo has impersonation rights already with them at server and db level respectively. Before going on usage of EXECUTE AS, let me clarify that not every one may impersonate by using the EXECUTE AS. While within a database context, EXECUTE AS User may be used to switch the context to a specific user in a DB. EXECUTE AS may be used in two flavorsĪs the above mentioned flavors indicate, while working with server level permissions EXECUTE AS Login may be used to impersonate the server level permissions of a login. We may use it for stored procedures context as well. Just use the EXECUTE AS statement and you are in required context.Īctually EXECUTE AS is meant to manage more than just this simple task.
#Sql server sa account definition password#
You do not need to get password from the account owner to get login and then check the context.A simple and effective method is available. It is one of the primary responsibilities of a DBA to monitor and manage the permissions so that data and information security is ensured.Īs part of managing the security and permissions architecture, DBA may be required to check a specific context or permission for any account. Permissions are assigned explicitly or implied. In the Password field, type a password for the user.
On the General page, in the Login name field, type the name for a new user.
Click Serverinstancename > Security > Logins. Databases operate with various permissions on different objects. In the SQL Server Management Studio, open Object Explorer. SQL Server deals with Logins at server level and in the databases with users. If memory serves this is because SQL Server will declare implicit transactions for each statement. DbDigger, Logins and Users, Monitoring and Analysis, Security and Permissions, T-SQL Tips and Tricks Impersonating a login or user in SQL Server Expense account specified in Transaction Entry.
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