Data aggregation
Define the term data aggregation?
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An operational data source generally consists of the records of individual transactions just like the product sales. If user of the data warehouse only requires a summed total, you may decrease the records to more manageable number by aggregating the data.
List out the regions in which data structures are applied widely?
Illustrates the term data structure node class?
Illustrates the types of Data Independence?
Explain the way to set the number of lines upon a page of output and the width.
States the term Global temporary.
Specify the designer tools used for creating the tranformations?
What are the differences between perfect competition and Monopoly?
Give a brief introduction of the term real time data-warehousing?
Explain, why we use the lookup transformations?
Define the explaining plan and how is this used?
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