Presto SQL (Trino) Proper Case, Initcap: How to capitalize the first letter of each word in Presto

Trino (formerly Presto) is missing a commonly used function available in Excel, Hive, Oracle, PLSQL, Db2, python,… here is a fairly easy and efficient way to DIY your way around it.

How to capitalize the first letter of each word in presto. This is an image of an old typewriter.
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