Field help (TGLTGRLNK) 

By default, the fields that are displayed in a presentation support come uniquely from the target table. However, the information characterizing an element is often physically dispersed across several tables. Thus, this grid is used to associate the additional tables with the target in order to refine the presentation.

For example, imagine that the user wishes to know the different functions carried out by each employee on a sample. The "Function" field is not part of the Employee table but it is available in the "Entity/Employee relations" table. In this way, to display this information, it is sufficient to add the "CONTACT" table to the list of linked tables. If a link via selection support is already defined for this table, then the "Link key" and "Link expression" fields are automatically entered.

NB: The "Linked table" field contains an associated contextual menu named "Linked tables by support". This menu displays the list of tables already linked to the target through the different first level selection supports. The use of this list greatly simplifies the setup of a linked table. In fact, in this case, the link key and the link expression are automatically entered.