FileMaker Pro 4.1 Mac User's Guide

10-2 FileMaker Pro User’s Guide
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A lookup copies data from another file into
the current file, in a field that belongs to the
current file
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To establish a connection between files for lookups and relational
databases, you define a relationship, an expression that tells
FileMaker Pro how to match records in one file with records in another.
Then you choose the fields that contain the data you want to work with.
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In a relational database, data from another file is
displayed in the current file, in a field that belongs
only to the other file
Note All files involved with lookups and relational databases must be
FileMaker Pro 3.0 or 4.0 files.
Choose FileMaker Help Index from the or Help menu, and then type:
E relationships, understanding
Understanding the terminology
Before you begin, you need to understand the following terms for
lookups and relational databases. These terms are illustrated in the
sections that follow.
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This term Means
Master file For lookups, the file that contains the copied data. It’s the file the
lookup originates from and the file the data is copied to.
For relational databases, the file that accesses and displays data
from another file.
Related file For lookups, the file that contains the data to copy. It’s the file the
lookup goes to and the file the data is copied from.
For relational databases, the file that contains the data you want to
access and work with in the master file.
A related file and the master file can be the same file.
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