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Need to fetch data from 2 tables, mysql

peps03
peps03 asked
on
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Last Modified: 2012-02-15
Hi, i have 2 tables, pages and keywords.

pages has a unique primary key (id)
keywords does not have a primary unique key. it stores keywords based on the pages.id

so an id can occur multiple times with different keywords.

i would like to output the pages id and some other columns with the keywords and date corresponding to the ids from the keywords table and add the keywords and date.

<table width="100%" border="0" cellspacing="2" cellpadding="2">
<?php
include 'connect.php';

$query = 	"SELECT pages.id, pages.aname, pages.bname, pages.taganame, pages.tagbname, 
				keywords.id keywords.keywords, keywords.date 
			FROM pages, keywords 
			WHERE pages.id = keywords.id";

		$result = mysql_query($query);
		while($output = mysql_fetch_array($result)){
			
			$id = 	 $output['id'];;
			$aname = $output['aname'];
			$bname = $output['bname'];
			$taganame = $output['taganame'];
			$tagbname = $output['tagbname'];
			$keywords = $output['keywords'];
			$date = $output['date'];
			
			echo "	
				  <tr>
					<td>$id</td>
					<td>$aname/$bname</td>
					<td>$taganame/$tagbname</td>
					<td>$keywords</td>
					<td>$date</td>
				  </tr>
			";
		}
?>
</table>

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It outputs nothing, but also no errors.
What am i doing wrong?
Thanks!
Comment
Watch Question

Chris SandriniSenior System Engineer
Top Expert 2012

Commented:
"SELECT pages.id, pages.aname, pages.bname, pages.taganame, pages.tagbname, 
				keywords.keywords, keywords.date 
			FROM pages
                        LEFT JOIN keywords ON pages.id = keywords.id"

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I guess the problem is that pages.id is unique. so there is only 1 entry. But keywords.id can have multiple entries. Try to join the thables using left join.
Does your server suppress error messages? Maybe there are some, but the server doesn't show them.

What is the output of that:

<?php
include 'connect.php';

$query = 	"SELECT pages.id, pages.aname, pages.bname, pages.taganame, pages.tagbname, 
				keywords.id keywords.keywords, keywords.date 
			FROM pages, keywords 
			WHERE pages.id = keywords.id";

$result = mysql_query($query);

echo "Recordcount: " . mysql_num_rows($result);


?>

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Author

Commented:
Haha, thanks! That did the trick!

Checked it twice.. Well it works now!

Thanks

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