azure - How can I create custom dynamic data mask function in SQL Server? -


in sql server 2016 or sql azure, there feature called dynamic data masking. however, has 4 types of masks. possible create custom mask functions? , how can this? want mask function below(replace alphabet character *):

string in database:

how do?

after masking:

*** ** *** **?

sql server hasn't ability define custom function masking. can try tool ddm datasunrise. datasunrise works reverse proxy , can rewrite sql on fly data masking purpose


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