User Guide
29
Data Files
Specifying join types. If outer joins are supported by your driver, you can specify
either inner joins, left outer joins, or right outer joins. To select the type of join,
double-cli
ck the join line between the fields, and the wizard will display the
Relationship Properties dialog box.
You can also use the icons in the upper right corner of the dialog box to choose
thetypeofj
oin.
Relationship Properties
This dialog box allows you to specify which type of relationship joins your tables.
Figure 3-5
Relationship Properties dialog box
Inner joins. An inner join includes only rows where the related fields are equal.
Complet
ing this would give you a data set that contains the variables ID, REGION,
SALES95,andAV GINC foreachemployeewhoworkedinafixedregion.