Suppose you take a few measurements of a time-varying signal. Let’s say for concreteness that you have a microcontroller that reads some voltage 100 times per second. Collecting a bunch of data points ...

-- aliasing is the way to change the name of the column select gender, avg (age) as ave_age # this will return average age as ave_age as an alias but not changing it completely ...

-- SQL aliases are used to give a table, or a column in a table, a temporary name. -- Aliases are often used to make column names more readable. -- An alias only exists for the duration of that query.