DATABASE FUNDAMENTALS
DATA WAREHOUSING AND DATA MINING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The data Warehouse is ____
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read only.
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write only.
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read write only.
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none.
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Explanation:
Detailed explanation-1: -Low-quality data is cleansed before entering the warehouse. III. Data is read-only. It cannot be changed by end users.
Detailed explanation-2: -A system that is used to run the business in real time and is based on historical data.
Detailed explanation-3: -A data warehouse is a central repository of information that can be analyzed to make more informed decisions. Data flows into a data warehouse from transactional systems, relational databases, and other sources, typically on a regular cadence.
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