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.
Illustrate why informational and operational systems are separate?
Describe briefly the measure objects?
What are sequences, and what are the possible problems when employing them to make surrogate keys?
Write a short note on the difference between embedded and dynamic SQL?
Explain the term transformer stage?
Explain what is Structured Query Language (SQL)?
Explain difference types of the stages?
Briefly explain SQL Server 2005 Business Intelligence components?
Elucidate briefly power center repository?
Write a brief note on the market basket analysis?
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