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.
Overall, the average pay for a hardware engineer is 5% higher than for a software engineer. Based on our data, Google is the highest paying company in the computer engineering industry with employees earning an average of $124,000 per year, which is 21% higher than the average computer engineering salary in the United States.