Let me add to Gregory&#39;s explanation...you can save on cpu cycles by making one sql query to update all rows. Instead of a loop on the sql queries you can loop on the array_of_uids variable and create a comma delimited string out of them e.g. in PHP you can easily use the implode function:<div>

<br></div><div>$comma_separated = implode(&quot;,&quot;, $array_of_uids);</div><div>$sql = <span class="Apple-style-span" style="font-family: arial, sans-serif; font-size: 13px; border-collapse: collapse; ">&quot;UPDATE products SET product_price = &#39;7.6&#39; WHERE id IN ($comma_separated)&quot;;</span></div>

<div><div><br></div></div><div>HTH</div>