Tabulation

Use

You have to assign tables to your LOIO, PHIO, and relationship classes, so that the instance data can be stored in the runtime system. You can also store attributes in the header data of a logical or physical info object, in order to improve performance. This procedure is called tabulation. Both virtual and real classes can be tabulated. We recommend you tabulate attributes that are frequently used to select info objects.

A virtual class tabulation simply has template characters and is then copied into a replicated class.

Only relationship classes that are defined as independent relationship can be tabulated.

Key Features

The number of attributes that can be entered into the table fields in the header data of info objects is restricted to a maximum of 10. The field lengths for these attributes are also restricted:

Four attributes have a field length of 15 characters

Three attributes have a field length of 20 characters

Three attributes have a field length of 40 characters

Attributes whose field length is greater than 40 characters have to be saved in a separate attributes table.

Example of Tabulation of Attributes

This attributes table contains all attributes that are not already contained in the header data (such as CREATED_AT). These can be attributes that are not assigned to any of the ten fields due to their length. The actual data length is displayed in the column "#". If this column contains a 0 for any attribute, this means that the attribute has not been correctly typed. In such a case, it is up to you whether you enter this attribute and in which header line field.

Activity

There are a number of ways of carrying out a tabulation:

  • Choose Start of the navigation pathGoto Next navigation step TabulationEnd of the navigation path or

  • Click the button (Start Tabulation Editor) on the right-hand part of the screen, or

  • Choose the icon (Tabulation).