434 Part I EXAM PREPARATION Server: Msg 229,
434 Part I EXAM PREPARATION Server: Msg 229, Level 14, State 1, Line 1 SELECT permission denied on object BobTable1 , database . pubs , owner Bob . Server: Msg 229, Level 14, State 1, Line 1 SELECT permission denied on object JaneView1 , database . pubs , owner Jane . Server: Msg 229, Level 14, State 1, Line 1 SELECT permission denied on object JaneView2 , database . pubs , owner Jane . To gain access to the view, Jane has to grant SELECT on JaneView1. This additional grant automatically gives Mary access to JaneTable1, but not CASE STUDY: BOSS NEEDS TO SCREEN DATA DBOTable1. With the dbo providing a grant, the last holdout would be Bob to grant SELECT on BobTable1. Even though Bob created the top-level view, there is an ownership chain between his view and his table. Each time the owner changes, permissions have to be re-granted. It makes sense that if I have created a view based on your table, that does not mean you want people who access my view to have access to your table. FIGURE 7.17 The data access hierarchy can lead to broken ownership chains. When dealing with ownership chains, the single point that will reduce permission management for you is to have a single owner for the entire chain. The dbo makes a nice owner for all objects in the database. This means that you have to apply permissions only once to the upper-level objects. If you have a broken ownership chain, then you may have to apply permissions to objects along the entire chain, which makes it more difficult to implement permissions and you will have reduced security. The reduced security is caused by the additional permissions granted to subsequent objects, which may create holes in your data security. To assign dbo as the owner of objects you are creating, you have to specify dbo in the object name your are creating. For example, to create a view for dbo, you could use CREATE VIEW dbo.NewView AS …. You must be a member of the role. ESSENCE OF THE CASE . A new table is launched onto the database
For high quality website hosting services please check tomcat web hosting website.