Inefficient SQL Query

Question

I\'m building a simple web app at the moment that I\'ll one day open source. As it stands at the moment, the nav is generated on every page load (which will change to be cached

Answer 1

I'd try this one:

SELECT
    c.slug,c.name,s.name
FROM
    categories c
LEFT JOIN snippets s
    ON s.category = c.id 
WHERE live=1 ORDER BY c.name, s.name

I didnt test it, though. Also check the indexes using the EXPLAIN statement so MySQL doesnt do a full scan of the table.

With these results, you can loop the results in PHP and check when the category name changes, and build your output as you wish.