View member

View properties are either attributes or references. Usually, view members get a source defining how to evaluate the view member. When no source is defined, a property with the same name is searched in the from or group data type.

One may also define transient view members, which are evaluated on access. The source for transient view members (when being defined) is an operand which is valid in the context of the view.

In contrast to SELECT statements, view members have to be initialized explicitly by source definitions (and not by initial values).