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Predicates functions

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mtbeek32 edited this page Jan 26, 2023 · 2 revisions

Predicate functions are used to check certain conditions, like IsDefined of IsNull.

  • MakeDefined - defines a value (often zero) for null values
  • IsDefined - True for non null and False for null values
  • IsNull - True for null and False for non null values

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