Segmented mapping algorithms let you create unique masked values by dividing a target value into separate segments and masking each segment individually. Optionally, you can preserve the semantically rich part of a value while providing a unique value for the remainder. This is especially useful for primary keys or columns that need to be unique because they are part of a unique index.
- When using segmented mapping algorithms for primary and foreign keys, to make sure they match, you must use the same segmented mapping algorithm for each.
#Tip