the Operators of Union, intersection, difference, and exclusion of representations

Over the views as on sets properties of related data objects, the following operations are possible:

  • The Union operator |.
  • The intersection operator &.
  • The difference operator -.
  • Excluding the Union, the ^ operator.

Associated submission of datalow are processed recursively.

Operations performance are a very convenient opportunity when performing a pochityvaya objects data services, data (for example, if a data object initialized with the part properties and want to display it in the view with a wider set of properties, you can calculate the difference and to read a data object only through it).

An example of working with operations on views is available at