Register
Ron is in the process of designing tables for a database that will contain information for all school matches played in a year. What kind of a field must he define to prevent users from entering duplicate
56.7k views
3 votes
Ron is in the process of designing tables for a database that will contain information for all school matches played in a year. What kind of a field must he define to prevent users from entering duplicate values?

User Dan Udey
by
8.1k points

1 Answer

4 votes
Primary Key, if we define field as primary key it will not accept duplicate values.
User Grazyna
by
8.2k points
← Prev Question Next Question →

Related questions

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

“What does it mean when we “rework” copyrighted material?”
The book shows how to add and subtract binary and decimal numbers. However, other numbering systems are also very popular when dealing with computers. The octal (base 8) numbering system is one of these.
Seven basic internal components found in a computer tower
Please help me ! All you do is just put it it all in your own words ! Please this is for my reported card!i don't know how to put it in my own words because my English is not that good!
describe an advance in technology that makes life more enjoyable. what discoveries contribute to this technology?
Link Copied!