Matthew_ER2.docx - Matthew Becker ER2 Database Systems...

Info icon This preview shows page 1. Sign up to view the full content.

Matthew Becker – ER2 Database Systems Devulapalli CHECKPOINT 2.1 1. What does it mean to say a field has unique values? a. Each row in the same column is different. “not equal” 2. Why is it desirable to have a key be unique? a. Some piece of information can be retrieved alone. 3. Why does a file have to be organized by a key field? a. To make this file easier to find CHECKPOINT 2.2 1. What is a sequential file?
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.
  • Spring '16
  • Brooks
  • Computer file, Matthew Becker, sequential filing

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern