OpenOffice.org OpenOffice - 3.2 Schnellstart Anleitung Seite 269

  • Herunterladen
  • Zu meinen Handbüchern hinzufügen
  • Drucken
  • Seite
    / 442
  • Inhaltsverzeichnis
  • LESEZEICHEN
  • Bewertet. / 5. Basierend auf Kundenbewertungen
Seitenansicht 268
5) Click Next.
Figure 198: Selecting fields of a subform
Step 4: Get joined fields.
This step is for tables or queries for which no relationship has been
defined. Because we have already defined the relationship, the wizard
skips this step.
Note
It is possible to create a relationship between two tables that is
based upon more than one pair of fields. How to do that and
why is discussed in the Base Guide.
Caution
When selecting a pair of fields from two tables to use as a
relationship, they have to have the same field type. That is why
we used the Date field from both tables: both their field types
are Date[DATE].
Whether a single pair of fields from two tables are chosen as
the relationship or two or more pairs are chosen, certain
requirements must be met for the form to work.
No field from the subform can be the Primary key for its table.
(FuelID cannot be used.)
Each pair of joined fields must have the same file type.
One of the fields from the main form must be the Primary key
for its table. (Date would have to be used.)
Step 5: Arrange controls.
Each control in a form consists of two parts: label and field. This step
in creating the form determines where a control’s label and field are
placed in relationship with each other. The four choices from left to
Chapter 8 Getting Started with Base 269
Free eBook Edition
Seitenansicht 268
1 2 ... 264 265 266 267 268 269 270 271 272 273 274 ... 441 442

Kommentare zu diesen Handbüchern

Keine Kommentare