Mumps

Hello World in MUMPS

Every programming journey starts with Hello World. Let’s write our first MUMPS program using YottaDB, an open-source MUMPS implementation.

The Code

Create a file named hello.m:

hello ; Hello …

Variables and Types in MUMPS

MUMPS takes a radically different approach to variables and types compared to most programming languages. There are no type declarations, no type keywords, and no distinction between strings and …

Operators in MUMPS

Operators in MUMPS are heavily influenced by the language’s typeless nature: the same value can be treated as a string or a number, and operators decide which interpretation to apply. This leads …

Control Flow in MUMPS

Control flow in MUMPS looks unusual to anyone coming from a C-family language. There are no curly braces, no switch, no while, and no for (init; condition; step) header. Instead, MUMPS gives you a …

Functions in MUMPS

MUMPS is an imperative, procedural language, and it splits reusable code into two distinct forms. A subroutine is a labelled block of code you invoke with the DO command; it runs for its side effects …

I/O Operations in MUMPS

Input and output in MUMPS revolve around a single unifying idea: the current device. Whether you are writing to the terminal, reading a keystroke, or streaming lines to a file, you use the same three …