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.
As technology continues to become a prominent feature in many people's lives, the need for computer software engineers continues to grow. According to the Bureau of Labor Statistics, computer software engineers make around $87,000 to $95,000 a year, making becoming one a lucrative career choice.However, to command such a lucrative salary, you must have the required education and technical skills to back it up.ccording to the Bureau of Labor Statistics, computer software engineers make around $87,000 to $95,000 a year, making becoming one a lucrative career choice. However, to command such a lucrative salary, you must have the required education and technical skills to back it up.