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6 months ago
What is the purpose of a database, and how does the database accomplish this purpose?
Textbook 
Database Processing: Fundamentals, Design, and Implementation
Edition: 15th
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6 months ago
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The purpose of a database is to help people keep track of things. It accomplishes this by storing data in tables. Similar to a spreadsheet, each table has rows and columns. A database usually has multiple tables to keep track of different but related things. For example, we might have a customer table to keep track of customers and a product table to keep track of the things we sell. Each row in each table holds data about a particular instance (i.e., one customer or one product). The database also stores the links between the tables, so that we can track which customers bought which products (note: this will require an additional table if one customer can buy more than one product and one product can be sold to more than one customer).
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