Search unanswered questions...

Enter a question here...
Search: All sources Community Q&A Reference topics


What are attributes and entities in data base system management?

tables v. rows

Entities are the things you're keeping track of. In an video rental database, you keep track of customers, invoices, titles, copies, etc. These are represented in tables where the rows are individual instances of a customer or title. The columns are the attributes, the things that tell us about the instance in the row.

The customer's name, address, city, balance, etc. are attributes that help identify the customer. An invoice's attributes might be price, number, date, paid/unpaid, etc.

Databases link entities/tables so that a customer, described by his attributes, can be associated with his invoices, describe by his attributes and selected by the invoices 'unpaid' column.

"Here's your bills for the last month, Mr. Smith."

Improve Answer Discuss the question "What are attributes and entities in data base system management?" Click here to register and get updates when this answer is edited. Share on Facebook Share on Twitter

First answer by Codewriter. Last edit by Codewriter. Contributor trust: 37 [recommend contributor]. Question popularity: 21 [recommend question].

Answers.com > Wiki Answers > Categories > Technology > Computers > Computer Programming > Database Programming > What are attributes and entities in data base system management?

Our contributors said this page should be displayed for the questions below. (Where do these come from)
If any of these are not a genuine rephrasing of the question, please help out and edit these alternates.
Define Attributes to Data model?  Is car an entities or attributes?  What is data base managment system?  What is data management technology?  Data information and its attributes?  What are the entities in Data Mining?  Data Base Management Systems programs?  Characterstics of data base system are?  Attributes of a good information system?  What are some entities of banking system?  What are the entities of a payroll system?  Operating system for data base management?  What do you mean by attribute of an entity?  What are entities attributes and relations?  Featuresof using data base management system?  Dis advantages of data base management system?  Generate a data table with 3 entities 6 tuples?  What is mean by attributes in database management?  What are the non financial attributes in data base?  What are the entities in hotel management ER model?