IsNull

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Predicates functions IsNull

Contents

syntax

  • IsNull(a)

definition

IsNull(a) results in a boolean data item with values True for null and False for non null values of data item a.

applies to

since version

5.15

example

attribute<bool> IsNull (ADomain) := IsNull(A);
<tbody> </tbody>
A(float32)   IsNullA
0 False
null True
1000000 False
-2.5 False
99.9 False

ADomain, nr of rows = 5

see also

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