vValue | (Variant) The value that has to be returned by the ReadFieldValue method if the Null value is returned by this property |
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nType | (Long) Specifies columns, the compensatory values are valid for:
1 - for integer numbers columns (of the Integer, Byte and Long type)
2 - for columns of the Boolean type
3 - for columns of the Text type
4 - for columns of the Date type
5 - for real numbers columns (of the Single, Double type) |