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.
Salary Outlook. The average salary of computer engineer in the United States is $102,450 per year, which is 106% higher than the average U.S. salary. Our latest research found that new college graduates can earn an average salary range of $61,000 to $76,000 per year.