Database Primary Key: A primary key is a combination of one or more column values in a table that make a row of data unique within a database table. Identification of primary keys is an important part of entity type identification. Ideally, primary keys should be. stable and.
It depends on their experience, the industry of their clients, what their special â¦ ty is, their location, etc., etc.According to the U.S. Department of Labor, the 2002 median annual earnings of salaried computer programmers was $60,290.
Current higher paying fields include: Network Engineer: Engineers make anywhere from $50,000 to over $100,000 per year depending upon how much experience they have and their credentials.E: How much does a certified computer technician make per year? I am doing a report in school about becoming a certified computer technician, and I need some help. My questions include the one above and -- Do you need any necessary skills?