Technical data

Figure 5–22 Occurrence Diagram of a Many-to-Many Relationship Between Records of the

Same Type

PART

COMPONENT

5321

DCBA

ZK−1500−GE

PART_USES

PART_USED_ON

PART_USES

PART_USED_ON

The STOOL program in Example 8–5 loads and connects the parts for the

STOOL bill of materials presented earlier in this section. It uses the relationship

represented in Figure 5–16 to print its parts breakdown report in Section 8.6.

Figure 5–23 explains how to read the parts breakdown report.

Figure 5–23 Sample Parts Breakdown Report

PARTS BREAKDOWN REPORT

PART A (Part A information)

PART B (Part B information)

PART C (Part C information)

PART D (Part D information)

ZK−6062−GE

The sample parts breakdown report shows that:

• PART A is built using two subassemblies: PART B and PART D.

• PART B is built using PART C and PART D.

• PART C is built using PART D.

Database Programming with HP COBOL 5–21