Logical Functions The next grouping of new T-SQL commands is logical functions; they include two new commands, CHOOSE and IIF. These commands are used for logical operations to help control the ...

SQL Window functions are an advanced type of function in SQL. In this post, ... Command Not Found utility detects command-line errors in PowerShell. Latest Reviews. March 27, 2025.

In this tutorial, we will step through installing PostgreSQL, connecting to the database, loading some data, and running a variety of SQL queries.