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.
Can we stop and start one session in the concurrent batch?
Name four applications which are employing for triggers in DBMS?
Explain terms Data Cache in Sybase. Answer: It is the memory area where data which is required for the current queries running is bought by Disk upon to memory for
Illustrate the term multimedia data mining in short.
Define the Fully Functional dependency.
Explain what is meant by the repository and what does it consists of?
Explain the Scope of Analysis?
Explain what is meant by the term universe stage?
Why do normalized tables need more complex SQL when SQL statements are employed in application programs?
Explain the term Coalesce. Answer: Coalesce is also obtainable in Sybase, this function estimates the listed expressions and returns the first non-null value.
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