Question

i have a commenting system;
I have one query

SELECT ShoutID,Message, User, Date, ShoutImageThumb, ShoutImageBig,UserID, 
       Email, FullName, UserImageThumb, Admin FROM shoutbox LEFT JOIN users ON 
       users.Email = shoutbox.User ORDER BY ShoutID DESC LIMIT 10

and while its going through the loop on the page
i run another query in the loop to get the comments for that message

SELECT users.UserID, users.Email, users.FullName, shoutboxcomments.ShoutID, 
       shoutboxcomments.`Comment`, shoutboxcomments.`Date`, 
       shoutboxcomments.`User`, shoutboxcomments.CommentID FROM shoutboxcomments 
       LEFT JOIN users ON users.Email = shoutboxcomments.User 
       WHERE ShoutID = '.$ShoutID.' ORDER BY CommentID ASC

is it possible to join these queries or how i can streamline it , as im building in php using mvc architecture

Answer 1

Instead of running one query per post, use IN to get the comments for multiple posts at once.

SELECT users.UserID, users.Email, ...
FROM shoutboxcomments
LEFT JOIN users
ON users.Email = shoutboxcomments.User
WHERE ShoutID IN (1, 4, 15, 22)
ORDER BY CommentID