Courses / Power Query (Get & Transform)
4. Let expression
The M language let expression for naming intermediate values and producing a final result.
Power Query M
Let expression
A let expression gives names to intermediate values and then returns a final result built from them.
"I want to break a messy query into named steps so I can read and reuse parts easily."
A let expression defines one or more named bindings (intermediate values) and an in clause that produces the final value; bindings are evaluated in sequence and are immutable once created.
"I want to break a messy query into named steps so I can read and reuse parts easily."
A let expression defines one or more named bindings (intermediate values) and an in clause that produces the final value; bindings are evaluated in sequence and are immutable once created.