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Complex Data Structures

GROUP (compound data structure)

CLASS (object declaration)

File Structures

FILE (declare a data file structure)

INDEX (declare static file access index)

KEY (declare dynamic file access index)

MEMO (declare a text field)

BLOB (declare a variable-length field)

RECORD (declare record structure)

Null Data Processing

FILE Structure Properties

Environment Files

View Structures

VIEW (declare a "virtual" file)

PROJECT (set view fields)

JOIN (declare a "join" operation)

Queue Structures

QUEUE (declare a memory QUEUE structure)