Background documentation Functions of the Precompiler Runtime Environment Locate the document in its SAP Library structure

The precompiler runtime environment performs the following functions at runtime of the application program:

·         Connecting to the databases and opening database session as specified in the connection options

·         Assigning parameter values

·         Converting data types

·         Executing precompiler statements

·         Using indicator variables to denote NULL values (undefined values)

·         Writing database system messages in the structure sqlca

·         Writing the trace file as specified in the trace options

Note

See also the example: Executing a SAP DB Application Program

You can use the IRCONF tool to administer the installed versions of the runtime library of the interface programs, including the precompiler.