Explaining data warehouse
Explain in brief the term data warehouse.
Expert
Data warehouse is defined as a repository of the different heterogeneous data sources that is organized under the unified schema at a single site in order to facilitate the management decision making.
(or)
A data warehouse is defined as the subject-oriented, time-variant and non-volatile collection of the data in support of management’s decision-making procedure.
Describe the inconsistent values problem? Comprise an appropriate example?
What do you understand by the term JavaScript and VBScript in DBMS?
What do you understand by the term SQL view in DBMS? Briefly describe the utilization of views?
In which case the functional dependencies are not equations? Describe briefly?
Describe briefly the difference between a shared lock and an exclusive lock?
Illustrates the types of Data Independence?
hatcher also created the accompanying Level 1 data flow diagram for this process. Unfortunately, this DFD has numerous syntax and semantic errors. Identify the errors. Redraw the DFD to more correctly represent the receive supplier shipments process.
Illustrates the ETL data integration software?
In Sybase illustrates the term Table Partitioning?
Briefly describe the differentiation between star and snowflake schemas?
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