You can use the preprocessor in the following two modes:
To only check your SQL syntax.
To perform full preprocessing, which includes SQL syntax
checking, creating compilable output, storing a module in a
DBEnvironment, and creating a file that contains an installable
copy of the stored module.
As you develop the SQL portions of your Pascal programs, syntax
checking mode is quite useful. Preprocessing is quicker in this
mode than in full preprocessing mode. In addition, you can
start debugging your SQL commands before the DBEnvironment
itself is in place.
How to run the preprocessor in both modes is described later in
this chapter under "Invoking the Pascal Preprocessor."
