In order to use callable DATATRIEVE, you have to set up some
data structures in your program called a DAB (DATATRIEVE Access
Block). Template files are supplied by DEC for Basic, Fortran,
COBOL, and Pascal. To expand the range of languages, I have included
here my definition file for a DAB using Macro-32 (assembler).  If
anyone expands this range further, we would be pleased to include
additional DAB files in future releases.

B. Z. Lederman DTR/4GL Library Rep.