System Reference Summary : 6. 4GL System Constants : System Constants : EmptyValueComparison Settings
 
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EmptyValueComparison Settings
Constant Value
Description
Numeric
Equivalent
EVC_LT
Empty value is less than any non-empty value
-1
EVC_CONVERT
Empty value is compared using datatype-specific conversion rules, for example, empty value equals 0 for numeric and money datatypes, empty date for date
0
EVC_GT
Empty value is greater than any non-empty value
1