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.
Average Computer Hardware Engineer Yearly Salary in New York. Computer Hardware Engineers earn a median salary of $105,320 per year. Salaries typically start from $65,360 and go up to $155,380. Learn more about the Computer Hardware Engineer job market for salaries of real jobs in your area. Alternatively, see what Computer Hardware Engineers earn in other states.