Explain the term optimization and performance tuning
Explain the term optimization and performance tuning and its work in practical projects?
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Performance tuning and optimization of a query includes collecting statistics on link columns, ignoring cross product join, selection of suitable primary index (to ignore skewness within storage) and by using secondary index. Ignoring NUSI is advisable.
Briefly explain the functional differentiations between COGNOs and BO?
Explain the performance of SQL Server Reporting Services.
Describe the term Derivations, Stage Variables and Constants?
Explain the term DataStage and Informatica?
Explain what is database connection?
Describe briefly the different methods of loading Dimension tables?
What are the properties of Isoquants?
Explain the term precision in Data Structures? Answer: Precision considers as to the accuracy of the decimal portion of a value. It is the number of digits permitted
Elucidate briefly the term metadata reporter?
Briefly describes the systems development life cycle.
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