The ADABAS precompiler is a program which is executed before the programming language compiler. The basic function of the precompiler is to translate all the SQL statements into statements of the corresponding programming language. In this process, the precompiler only translates those pieces of information contained in a program which are needed for compiling the SQL statements. The language compiler will then decide whether the program is correct according to the programming language description.
The precompiler has additional functions which are described in the following section.