1.3.4.8.2 Comparison: Both Fields Null (Solutions)
The Both Fields Null (Solutions) comparison determines if both attributes are null.
Use the Both Fields Null (Solutions) comparison as a way to apply a Match rule only to a subset of the data when certain attributes are (not) null.
This comparison does not support the use of result bands.
Example
This example demonstrates the effect of using the Both Fields Null (Solutions) comparison.
Example results:
Table 1-34 Example Results: Both Fields Null
| Value A | Value B | Comparison Result |
|---|---|---|
|
X |
X |
False |
|
X |
<null> |
False |
|
<null> |
X |
False |
|
<null> |
<null> |
True |