Question

I need help regarding JOIN tables to get category name & author name from other tables.

for articles site I have Three Tables

• articles
• categories
• users

Articles Table structure :

id
title
slug
content
category
author
date

I save category ID & user ID in articles table with each article

While Displaying Articles for a category I use this:
(just some draft idea not full code)

localhost/testsite/category.php?cat=category-slug

$catslug = ($_GET["cat"]);

//GET CAT ID from category table from slug

$qry = "SELECT * from category WHERE slug='$catslug';
$res = mysql_query($qry) or die("Error in Query");
$ans = mysql_fetch_array($res);
$cid = $ans['id'];
$catname = $ans['title'];

<h2><?php echo $catname; ?></h2>

//after getting cat-id query to get article of that ID

$aqry = select * from article where category=$cid ORDER BY date";
$ares = mysql_query($aqry) or die("Error in Query");
$aans = mysql_fetch_array($ares))
$aid = $aans['author'];

//then another query to get author name from users
select username from users where id=$aid

I m learning PHP & not much familiar with JOIN statement & combining queries
need help/suggestions hw can I achieve same with JOIN tables instead of different queries to get catname and author name from tables.

Thanks

Answer 1

This should do what you want

SELECT distinct c.title, U.Username
from category C join article A on A.category=C.id
join users U on U.id=A.author
WHERE C.slug= :catslug