Base Classes

If a data class is a derived class, this list automatically displays its base classes. A data class can only have base classes if it is depicted as a view. You cannot create new base classes here. More information: -> Base and derived classes.

Class Name a base data class' name
Type a base data class' type
Object Title a base class' title
Comments comments about a base class
SQL Text/Oracle base class view qualification for an ORACLE database
SQL Text/SQL Server base class view qualification for an SQL servers

Form opens the Data Classes form

Class Name

The base class' name

attribute master attribute for table (T_TABLE)
type, entry display only
max. no. of characters 13
selection tool no
multilingual field no

Type

The base class' type

attribute master attribute for table (T_TABLE)
type, entry display only
max. no. of characters 1
selection tool menu with all available types
multilingual field no

The display type determines how a data class is displayed in the database.

Entry:

T
as DataView table

F
as a foreign table

V
as DataView view

W
as a foreign view

More information: -> Table formats, -> View formats

Object Title

A base class' title

attribute master attribute for table (T_TABLE)
type, entry string, entry optional
max. no. of characters 20
selection tool no
multilingual field no

The title is used in error messages.

Note! You should always give your objects a title. If you don't, error messages will only contain the object's key, and you won't be able to find the object in a Search mask.

Comments

Comments about a base class

attribute master attribute for table (T_TABLE)
type, entry string, entry optional
max. no. of characters 255
selection tool no
multilingual field yes

SQL Text/Oracle

Base class view qualification in SQL syntax for an ORACLE database

attribute master attribute for table (T_TABLE)
type, entry string, entry required
max. no. of characters 2000
selection tool no
multilingual field no

SQL Text/SQL Server

Base class view qualification in SQL syntax for SQL servers

attribute master attribute for table (T_TABLE)
type, entry string, entry required
max. no. of characters 2000
selection tool no
multilingual field no

Form

Opens the Data Classes form for the marked record.