The data structure diagram provides you with a graphic representation of your database's schema and/or subschemas. How your CA IDMS Schema Mapper data structure diagram actually looks depends on your schema or subschema and on the parameters you use to produce the diagram. The data structure diagram contains many more variables than the other outputs, giving you extensive control over the layout and the format. Exhibit 3.1 shows a simple data structure diagram created with automatic layout of the record blocks and sets and gives a brief description of the basic components.
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