Report Considerations

FOCUS report procedure designers have great flexibility in coding the FOCUS description of the part of the ADABAS structure they want to access. This chapter describes the methods of file traversal that the ADABAS Interface uses to determine the relative advantages of different file descriptions.

• File Navigation Techniques
• Selection Considerations
• Using the JOIN Command to Process Multiple Files
• Optimization With Null-suppression for CALLTYPE=RL
• Optimization on Group Fields
• Test on Group Field With Numerics