# Abstract Class "datagen :: QResultColumn"

Defined in package : datagen

Superclasse (astratta) delle colonne che costituiscono l'output di una query.

Super and Sub Types

- datagen :: QResultColumn
  - datagen :: QCalculatedColumn
  - datagen :: QTableColumn

All known Sub Classes

- datagen :: QCalculatedColumn
- datagen :: QTableColumn

Direct Attributes ecore :: EString alias

Referenced by

- datagen :: QResultColumn referencedColumns (datagen :: QCalculatedColumn)
- datagen :: QResultColumn columns (datagen :: SelectClause)

## Attribute ecore :: EString alias

Se presente serve per disambiguare eventuali colonne con lo stesso nome ma provenienti da differenti tabelle. Nel caso delle colonne calcolate è obbligatorio.

Property | Description
--- | ---
type | ecore :: EString
changeable | true
defaultValueLiteral | null
derived | false
iD | false
lowerBound | 0
name | alias
ordered | true
transient | false
unique | true
unsettable | false
upperBound | 1
volatile | false

generated on 23-nov-2011 at 17.50.28 by metamodeldoc