ALLBASE/SQL is a relational database management system that uses
SQL statements to access data within an ALLBASE/SQL DBEnvironment.
Embedding SQL statements in your C program and preprocessing with the
SQL
preprocessor allows programmatic access to this data.
Embedded statements are ALLBASE/SQL commands in the flow of what would otherwise
be C source code. When embedded statements are present, the source
code must be passed through an ALLBASE/SQL preprocessor to convert them
to a form understood by the C compiler.
This chapter examines the steps to follow
as you begin to work with embedded SQL.
It focuses on the programmer's tasks, which are presented in the
following sections:
Understanding ALLBASE/SQL Operations.
Understanding the Program Life Cycle.
Developing ALLBASE/SQL Applications.
Moving Programs into Production.
Maintaining ALLBASE/SQL Applications.
Programming Under the MPE XL Operating System.
Looking at an Embedded SQL Source Program
Embedded SQL programming is a simple process. You include SQL
statements
in a C source program, then you preprocess the code using the ALLBASE/SQL C
preprocessor before compiling and linking. The preprocessor is fully
described in Chapter
2, and the specific techniques of ALLBASE/SQL programming are presented in
more detail in the succeeding chapters. Readers who are already
familiar with the general process of embedded SQL programming
should skip ahead to Chapter 2.
