MicroStrategy 7 Administrator Guide

5
Caching
CHAPTER 5
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Caching topics include:
• Basic caching concepts
• Caching job results
• Pre-Calculated data
• Database connection caching
• Cache administration
Introduction to caching
Caching is the theory that once something has been processed, there is no need to
process it again. For example, if someone were to ask you what the capital of
Denmark is and you did not know, you would have to look it up. However, if
someone asked you the same question again twenty minutes later, you would be
able to immediately reply that Copenhagen is the capital of Denmark, without
having to look it up again.
This same idea can be used in the MicroStrategy environment. When a user runs
a report for the first time, the job is submitted to the database for processing.
However, if the results of that report are cached, then the next time someone runs
the report, the results can be returned immediately without having to wait for the
database to process the job.
In the MicroStrategy environment, caching can be used to improve system
performance in the following ways:
• by caching the results of jobs
• by pre-calculating and caching the results of common or complex
computations
• by caching connections to databases
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