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2) Add the Fuel table to the query just as you did in step 2: Add
tables. But, do not close the Add Tables window.
3) Add the End-Reading query to this query.
a) Click the
Query
radio button to get the list of queries in the
database (Figure 249).
Figure 249: Selecting queries to add to another query
b) Click End-Reading.
c) Click Add, and then click Close.
Step 7: Add fields to the table at the bottom of the query.
We are going to calculate the fuel economy. To do this we need the
FuelQuantity and distance traveled. Since the FuelQuantity we want to
use is at the ending odometer reading, we will use the End-Reading
query to get it. We will also use the Odometer field from the Fuel table
and End-Reading query.
Figure 250: Tables in this query
1) Double-click
FuelQuantity
in the End-Reading query.
2) Double-click
Odometer
in the End-Reading query.
3) Double-click
Odometer
in the Fuel table.
Figure 251: Added fields to the query
Chapter 8 Getting Started with Base 295
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