Question

I have the following:

"SELECT * FROM pages WHERE parent=0 ORDER BY `sort` ASC"

There is a bug somewhere in the system I am working with which means that a page can have a lower sort value than the home page. I am currently looking into this, in the meantime i need the query to enforce that home page comes out first.

Can this query be adapted so it always get’s the page with an id of 1 to appear first, then rest are sorted by the sort column?

Answer 1

SELECT  *
FROM    pages
ORDER BY
        id = 1 DESC, sort

If you are going to apply a LIMIT clause to this query, it may be better to split it in two:

SELECT  *
FROM    pages
WHERE   id = 1
UNION ALL
SELECT  *
FROM    (
        SELECT  *
        FROM    pages
        WHERE   parent = 0
                AND id <> 1
        ORDER BY
                parent, sort
        LIMIT 9
        )

so that an index on (parent, sort) can be used.