Video about oracle views updating data:
This happens when the view and the underlying table do not have the same owner. A view can be used to wrap up complex queries containing subqueries, outer joins, and aggregation.
However, other types of indexes can be defined on views in SQL Server Views have never in the past been able to contain parameters; however, as shown later in the chapter, user-defined functions can now be used like views, effectively allowing you to create parameterized views that return different results depending on the parameter values that get passed in each time the function is run.
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