Essay
Explain the term retrieval of analytical information in the following data warehouse definition:
The data warehouse is a structured repository of integrated,subject-oriented,enterprise-wide,historical,and time-variant data.The purpose of the data warehouse is the retrieval of analytical information.A data warehouse can store detailed and/or summarized data.
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Q38: Increasing the speed of a single query
Q39: Keeping data in the operational system past
Q40: The purpose of the source system is:<br>A)Original
Q41: Describe the data warehouse deployment step.
Q42: Operational data typically represents the current state
Q44: Operational queries are typically issued:<br>A)By fewer users
Q45: Operational databases are referred to as subject-oriented.
Q46: A data mart is a data store
Q47: Data marts are always implemented as relational
Q48: The performance of operational day-to-day tasks involving