Cannot create nonunique clustered index on view '' because only unique clustered indexes are allowed. Consider creating unique clustered index instead.

Cannot create nonunique clustered index on view '' because only unique clustered indexes are allowed. Consider creating unique clustered index instead.

We cannot create the non-unique clustered  index on view. That is we must have to create clustered index using UNIQUE keyword. If we will create index like

CREATE CLUSTERED INDEX CI_ViewStu

ON dbo.view_StuInfo(RollNo)

We will get error message:

Cannot create nonunique clustered index on view 'dbo.view_StuInfo' because only unique clustered indexes are allowed. Consider creating unique clustered index instead.

Solution:

CREATE UNIQUE CLUSTERED INDEX CI_ViewStu

ON dbo.view_StuInfo(RollNo)