Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Chapter 10, Problem 12E
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Opinions for handling the transaction load:
- Query performance must be improved in a centralized system for handling the transaction load.
- While performing Query processing, the following points must be noted,
-
- ○ Reduce the amount of memory and storage needed for query processing.
- ○ Maximize the throughput which means that the number of requests that are processed in a given amount of time should be increased.
- ○ Query Response Time has to be reduced.
- ○ Memory and Storage needed for processing has to be reduced.
- ○ Avoid Cross Product Operations as they result in huge intermediate tables that will require time for processing.
- ○ Perform restrictive select operations before the other operations.
- Query Optimization is performed by following the below given steps:
-
- ○ Generating Query Tree
- The root of this tree represents the whole query and leaf nodes are the tables of the query...
- ○ Generating Query Tree
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