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37 Cards in this Set
- Front
- Back
- 3rd side (hint)
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ad hoc query
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spur of the moment question
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centralized database
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data location at a single site
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data
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raw facts
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data anomaly
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data stored in multiple places not updated in all places
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data dependence
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when data structure changes, it breaks everything. flat files
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data dictionary
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the metadata of a database, tables, fields, etc
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data inconsistency
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different data in different tables
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data independence
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making structural changes doesn't break everything. relational database
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data integrity
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data is consistent with the real world
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data management
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study of the proper storage, generation and retrieval of data
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data redundancy
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storage of same data at multiple locations
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data warehouse
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used to generate reports for strategic or tactical decisions
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database
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a shared integrated system for storing data
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database design
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design of the structure used to store data
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database management system
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DBMS, a collection of programs that gives access to data and data structures
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database system
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hardware, software, people, procedures and data
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desktop database
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a single user database
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distributed database
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supports data distributed across several different sites
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enterprise database
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a database shared by the whole company across many departments
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журнал
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誌
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САМУРАЙ читает женский ЖУРНАЛ и СЛОВА, написанные там, разят его прямо в серде
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field
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column, used to define and store data
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file
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a collection of related records
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information
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processed data
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islands of information
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the same data stored in different locations, the term used to describe these locations
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logical data format
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a human view of the data (as compared to the machine view)
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metadata
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data about data
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operational database
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a databased designed to handle day to day operations
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performance tuning
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activities which make the database more efficient and quicker
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physical data format
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how the machine views data as compared to how a person views data
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production database
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sometimes referred to as a companies operational database
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query
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a request made to the DBMS for database manipulation or reporting
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structural dependence
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access to the file is dependent on its structure. refers to the short comings of flat files
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query result set
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the DBMS response to a query
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record
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a collection of fields or columns that describes a person place or thing
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structural independence
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changes to database structure are easy and don't break applications
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unstructured data
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data that exists in its raw state as it was collected
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structured data
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formatting data to make storage reporting and use easier
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