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19 Cards in this Set
- Front
- Back
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The purpose of a database is to |
Keep track of things Ri |
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Databases vs. spread sheets |
Spread sheets are good for organizing lists with one variable Databases organize data from multiple variables and can be updated with forms |
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Database |
A self describing collection of Intergrated records |
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In databases bytes (characters of data) are grouped in - |
Columns |
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Columns are also called |
Fields |
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Columns are also called |
Fields |
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Columns are grouped into |
Rows |
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Columns are also called |
Fields |
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Columns are grouped into |
Rows (a collection of data for all columns) |
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Rows are also called |
Récords |
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A group of similar rows are called a |
Table or file |
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Metadata |
Describes the structure of the database |
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What are database management systems (DBM) |
A program used to create, process, and administer a database |
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Example of a DBM |
DB2, ACCESS, SQL Server, Oracle Database, MySQL |
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What are the tasks of Database Administration (DBA) |
Development, security, backing up and recovering data, improving performance and adapting, |
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Data base design |
The process of converting a data model into tables, relationships, and data constraints |
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Database integrity problem |
An error in the database |
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Normalization |
The process of converting a poorly structured table into two or more well caricatured tables |
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The data development process |
Requirements - Data Model - Database Design |
