Question

I am making a graph and need to generate an array from the information in a sales table which I have. It’s columns include DATE (2010-09-30 13:48:58) and AMOUNT (4.99). What’s in brackets are examples of the type of data in each column.

What I would like to do in SQL is to go through the table and get totals of the amount for each month so that I can create an array with it.

How do I do this in SQL? Thanks!

Answer 1

A simple aggregate.

This is quite standard SQL too (subject to delimiting names that are reserved keywords)

SELECT
    YEAR(`Date`) As TheYear, MONTH(`Date`) AS TheMonth, 
    SUM(Amount) AS MonthlyTotal
FROM 
    SomeTable
GROUP BY 
    YEAR(`Date`), MONTH(`Date`);