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.
Give a brief introduction of the term surrogate key?
Write about the term metadata in brief.
Describe briefly perform recovery?
State the difference between the content store and content manager?
Illustrates all databases should be in third normal form or not?
What is meant by the Data warehouse?
What are the drawbacks of the client or server model?
Briefly describe EDW?
Elucidate briefly the term metadata reporter?
Describe briefly the ‘paradigm mismatch’ among SQL and application programming languages.
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