15. VIFRED Field Specifications : Derived Fields : Performance Recommendations for Derived Fields
 
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Performance Recommendations for Derived Fields
To improve performance in applications that use derived fields, follow these recommendations:
Use aggregates primarily to derive table field aggregates of approximately 50 rows or less.
Avoid deep nesting of dependencies; that is, do not create a derivation formula where Field_A depends on Field_B, which depends on Field_C, and so forth.