Database Reference
In-Depth Information
NOTE
You don't
have
to click Monitor in the Edit Expression window. It's sometimes handy to use this
window when you're trying to write a calculation, even if you don't need to keep an eye on the res-
ults. Just click the Add button and fiddle with the formula until you have it right (clicking Evaluate
Now whenever you need to see how it's doing). When you're happy with the results, copy the for-
mula (Edit→Select All followed by Edit→Copy) and then click Cancel. You can now paste the
tested-and-working formula into a field calculation or a script step.
Figure 13-9. The Data Viewer's Edit Expression window should look familiar—it's almost an exact
replica of the Specify Calculation window. But this version can run the calculation in place and
show you the result (just click Evaluate Now).
The Data Viewer isn't attached to any particular file, so its Watch list contents don't change
when you open and close files. The viewer can even be open while you have no databases
