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.
Explain the difference between expression and aggregator?
Describes the examples of EXPLAIN in valid teradata database.
Name the main data structures used in these areas: Hierarchical data model, RDBMS and Network data model?
Briefly describes the systems development life cycle.
Write down a short note on the term concurrency transparency?
List out the various detected patterns.
What is Monopoly explain in brief?
Give brief introduction of the term ‘Service Broker components’?
What types of tables derived from the ERD?
Explain the Aggregate Awareness?
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