• A command is an operation that you execute at the operating system level. An extended operation invoked by a command is often referred to as a utility.

• A statement is an operation that you embed within a program or that you execute interactively from a terminal monitor. A statement can be written in a database query language (SQL or QUEL), Ingres 4GL, a host programming language (such as C), or in the Report‑Writer language (for report specifications).