Hi, I need advise about a database structure. I need to capture data from the web about one specific subject on few specific websites and insert that data to a database. I have done this question here before, but I think I have not explained very well.
The problem with this task is that the information is not linear, if I try to design tables with fields for all possible data I will end up with many row fields with NULL values. There are any problem with this(end up with many row fields with NULL values)? Or should I user other kind of structure? For example store the data in one field and that field containing an associative array with data. What I mean with non linear data is the following: array( 'name' => 'Don', 'age' => '31' ); array( 'name' => 'Peter', 'age' => '28', 'car' => 'ford', 'km' => '2000' ); In a specific website search I will store only "name" and "age", and in other website I will store "name", "age", "car" and "km". I don't know If I explain weel my problem. My english is not very good. Best Regards.