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.
According to the Bureau of Labor Statistics, in 2010, computer hardware engineers made an average of $100,920 per year which is one of the highest starting salaries for engineers, A computer engineer salary varies based on the experience of the computer engineer, the level of education he or she has completed, and the type of business in which a ...