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 Princeton Review, the greatest credential you can have as a computer engineer is practical experience. According to Salary.com, the median salary of a computer engineer with a master's degree and 2-5 years of experience is about $71,000.This figure jumps to nearly $86,000 when the same engineer has 5-10 years of experience.ompared to a computer engineer, a systems software developer averaged roughly the same salary (around $100,000), and an applications software developer makes slightly less (about $92,000).