AlliedModders - [PAWNO] The best way of using MYSQL?

Hello guys!

I heard that mysql_tquery is better than mysql_query. I am trying to create a car system, but i am not sure how to use corectly mysql.

I am using now this format:

Code:

        mysql_query(1, "SELECT * FROM `carsconfig` WHERE `set` = 1",true);

        cache_get_data(rows, fields, 1);

        if(rows)

        {

                cache_get_row(0, 3, csavingstring, 1); PCID = strval(csavingstring);

        }

         form

Can anyone show me how it should look when i am using mysql_tquery?

Can you explain me what is SQL injection and how can I prevent it?

P.S I have BlueG's plugin, version r39-2.