A birdcage (or bird cage) is a cage designed to house birds as pets. Antique (or antique-style) birdcages are often popular as collectors' items or as household decor but most are not suitable for housing live birds, being too small, or of unsafe materials or construction.ood quality cages designed for pet birds are more suitable. Most parrot cages are made or wrought iron and painted with a non-toxic paint referred to as powder-coating. However, the newest trend in the market is cages made of solid stainless steel.
A viewport is a 2D rectangle that defines the size of the rendering surface onto which a 3D scene is projected.
A view is a âvirtualâ table consisting of a SELECT statement, by means of âvirtualâ. I mean no physical data has been stored by the view -- only the definition of the view is stored inside the database; unless you materialize the view by putting an index on it. 1) By definition you can not pass parameters to the view. 2) NO DML operations (e.g. INSERT, UPDATE, and DELETE) are allowed inside the view; ONLY SELECT statements. Most of the time, view encapsulates complex joins so it can be reusable in the queries or stored procedures.