Learn what a distinct query is, why it's useful, and how to perform it in different NoSQL database types, such as key-value, document, column, or graph.

To write SQL queries that work on any database, you should use ANSI SQL as much as possible and avoid vendor-specific extensions, such as proprietary functions, data types, or syntax.

Enhance your SQL query writing skills to provide greater business value using advanced techniques such as common table expressions, window functions, and JSON Purchase of the print or Kindle book ...