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.
The top-paying industry for computer engineers is within software publishing, where they bring home an impressive annual mean salary of $115,920. Computer engineers are paid the most in Michigan at $116,380, but California comes in at a close second at $114,560.ow much does a computer engineer make? According to the Bureau of Labor Statistics records for May 2012, the average computer engineer salary is $103,980 per annum, which is equivalent to a mean hourly wage of $49.99.