You will notice that, because of the features of our database management system , we need only show leading zeroes where these are specified in the entity ... All other fields are held as variable-length fields. ... 8.13 PROPOSED DATA FLOW DIAGRAM We can now produce the data flow diagrams for the proposed system ( Fig. ... Figure 8.22 Acme video library - Sample entity occurrences (continued).
|Title||:||Systems Development Using Structured Techniques|
|Publisher||:||Chapman & Hall - 1989|