COMPUTER APPLICATIONS
DATABASE MANAGEMENT SYSTEMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Data Warehouse is usually used for?
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Accommodates historical data for many years
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Organizing daily data
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Statements 1 and 2 are correct
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Statements 1 and 2 are wrong
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Explanation:
Detailed explanation-1: -Data warehousing systems are usually concerned with historical data. Data within operational systems are mainly updated regularly according to need. Non-volatile, new data may be added regularly. Once Added rarely changed.
Detailed explanation-2: -A data warehouse stores current and historical data for the entire business and feeds BI and analytics. Data warehouses use a database server to pull in data from an organisation’s databases and have additional functionalities for data modelling, data lifecycle management, data source integration, and more.
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