w5_2_Database%201_S10 - Dat abase 1 I E 332: Comput ing in...

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IE 332: Computing in IE 2/10/2010 Ji Soo Yi yij@purdue.edu Database 1 Database 1
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Announcements Announcements Exam 1 Review 2/12/2010 Friday
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Database? Database?
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Database Database Database An organized collection of logically related data Organized : data are structured so as to be easily stored, manipulated, and retrieved by users Related : data describe a domain of interest to a group of users and the users can use the data to answer questions concerning that domain What does a database do? Databases help organize related data in a logical fashion for easy access and retrieval
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Why Database? Why Database?
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Traditional File Processing Traditional File Processing Systems Systems Databases did not exist in the beginning of computer-based data processing Computer file processing systems were developed to store, manipulate, and retrieve large files of data Focus on the data processing needs of individual departments Respond to users’ request by developing new computer programs Each application program or system is designed to meet the needs of the
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Example of Traditional File Example of Traditional File Processing Systems Processing Systems Orders Department Customer File Inventory File Back Order File Accounting Department Inventory Pricing File Customer File Payroll Department Employee File
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Example of Traditional File Example of Traditional File Processing Systems Processing Systems Orders Department Customer File Inventory File Back Order File Accounting Department Inventory Pricing File Customer File Payroll Department Employee File
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w5_2_Database%201_S10 - Dat abase 1 I E 332: Comput ing in...

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