Programming Essentials Python - Map Reduce Libraries - Row Level Transformations using map

Let us understand how we can perform row level transformations using map. Here are some of the examples. - Derive new fields from existing fields.
1.Get last 4 digits of social security number.
2.Standardize phone numbers.
3.Convert names to lower or upper case.
4.Break down the address into street, city, state, zip code.
5.Encrypt confidential information such as social security number or other unique ids such as Aadhaar.

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