Introduction to ADABAS Essentials

This section introduces SAS users to ADABAS, Software AG's database management system (DBMS). The section focuses on the following terms and concepts

• the ADABAS DBMS and ADABAS databases

• ADABAS files, NATURAL Data Definition Modules, and ADABAS descriptors (indexes)

• ADABAS data fields and ADABAS and NATURAL data formats and lengths

• null (missing) values

• ADABAS Security and NATURAL SECURITY System options

If you want more information about an ADABAS concept or term than this section provides, see the ADABAS information about your system.

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