1.3.3.8.7 Comparison: Equal or One/Both Fields Null (Solutions)
The Equal or one/both field null (Solutions) comparison determines if both attributes are equal, or either attribute is null.
Use the Equal or one/both field null (Solutions) comparison as a way to apply a Match rule only to a subset of the data when certain attributes are equal or data is missing.
The following table describes the configuration options:
| Option | Type | Description | Default Value | 
|---|---|---|---|
| 
                               Ignore case?  | 
                           
                               Yes/No  | 
                           
                               Sets whether or not to ignore case when comparing values. For example, if case is ignored, "Oracle Corporation" will match "ORACLE CORPORATION", which otherwise would not match.  | 
                           
                               No  | 
                        
Example
This example demonstrates the effect of using the Equal or one/both fields null (Solutions) comparison.
Example results:
Table 1-40 Example Results: Equal or One/Both Fields Null
| Value A | Value B | Comparison Result | 
|---|---|---|
| 
                                  X  | 
                              
                                  X  | 
                              
                                  True  | 
                           
| 
                                  X  | 
                              
                                  <null>  | 
                              
                                  True  | 
                           
| 
                                  <null>  | 
                              
                                  X  | 
                              
                                  True  | 
                           
| 
                                  <null>  | 
                              
                                  <null>  | 
                              
                                  True  | 
                           
| 
                                  X  | 
                              
                                  Y  | 
                              
                                  False  |