Rules and Guidelines for Data Masking Transformations
Rules and Guidelines for Data Masking Transformations
Use the following rules and guidelines when you configure a Data Masking transformation:
The Data Masking transformation does not mask null values. If the source data contains null values, the Data Masking transformation returns null values. To replace null values, add an upstream transformation that allows user-defined default values for input ports.
When the source data format or datatype is not valid for a mask, the Integration Service applies a default mask to the data. The Integration Service applies masked values from a default values file.
The Data Masking transformation returns an invalid Social Security number with the same format and area code as the source. If the Social Security Administration has issued more than half of the numbers for an area, the Data Masking transformation might not be able to return unique invalid Social Security numbers with key masking.