Courses & Publications for MultiValue Systems Malcolm Bull Training & Consultancy Services Smith House Lane BRIGHOUSE HD6 2JY West Yorkshire England

This is Proc

by Malcolm Bull

This is Proc looks at the Proc language which is implemented on the various MultiValue systems. The book is aimed at all levels of expertise and is designed to serve as:

• An introduction to the nature and form of Procs

• A reference for both new and experienced users

• A source of tips and techniques for those wishing to exploit the language

• Details and illustrative examples of generic PQ Procs

• Details and illustrative examples of the extended PQN Procs which are offered on Reality, jBASE, UniData, UniVerse and other systems

The topics which are covered in This is Proc include:

• The origin of Procs

• The structure of a Proc

• Creating a Proc

• P statements

• Living with your Procs

• Output: Displaying information

• Input: Getting data from the user

• Control statements: GO and IF statements

• Subroutines

• Arithmetic: PQ Procs

• File handling: PQ Procs

• Trace and debug

• Differences: PQ / PQN Procs

• PQN Procs

• PQN buffers & registers

• Arithmetic: PQN Procs

• File-handling: PQN Procs

• PQ-COMPILE

• Summary of Proc statements and their availability

We also look at some other processing routines which are found on current MultiValue systems, including:

• Sentences

• Paragraphs - and similar concepts, such as macros and batch files which are offered on the various MultiValue systems

• Menus

The presentation is based on Malcolm Bull's experience of using the language on MultiValue systems for over 20 years, and addresses all dialects of the language as it is implemented on those systems

Each element of the Proc language is introduced, described and illustrated in action, and for the experienced programmer there are discussions of the practical applications of the features of the Procs programming language

The book is designed to be used for general reading, and also as an essential element of MultiValue training courses. It is suitable for use by beginners, by experienced users, and by technical users