SQL window functions provide extremely powerful and useful features that let you work with observations more easily. Different types explained here.

Dino Esposito explains JSON-to-rowset native support in SQL Server 2016 and provides a realistic perspective of data query when you have JSON data stored in the database.

Scalar functions let you encapsulate a calculation into a stored procedure-like snippet of SQL. It’s common practice to return the results of a scalar function as a column in a SELECT query.

The outer PROC SQL query retrieves data from the view descriptor; the subquery uses a Pass-Through query to retrieve data. This query returns the names of employees who earn less than the average ...