Variable describing what to do when checking for equality of Null values.
Source position: variants.pp line 283
var NullEqualityRule: TNullCompareRule = ncrLoose; |
NullEqualityRule is checked when the system needs to compare the equality of variants with Null values (operations opCmpEq, opCmpNe). Check TNullCompareRule for a list of allowed values. The default is ncrLoose.
For determining the order (less than, greater than etc.) see NullMagnitudeRule.
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Enumeration describing how to handle Null values when comparing variants. |
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Variable describing what to do when checking for order of Null values. |