mysql select query within a serialized array

Question

I\'m storing a list of items in a serialized array within a field in my database (I\'m using PHP/MySQL).

I want to have a query that will select all the records that

Answer 1

foreach( $result as $value ) {
   $hour = unserialize( $value->meta_value );
   if( $hour['date'] < $data['from'] ) {
     $sum = $sum + $hour['hours'];
   }
 }