Cost-based oracle fundamentals
The question, "Why isn't Oracle using my index?" must be one of the most popular (or perhaps unpopular) questions ever asked on the Oracle help forums. You've picked exactly the right columns, you've got them in the ideal order, you've computed statistics, you've c...
| Main Author: | |
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| Format: | eBook |
| Language: | Inglés |
| Published: |
Berkeley, CA :
Apress
c2006.
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| Edition: | 1st ed. 2006. |
| Series: | Expert's voice in Oracle.
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| Subjects: | |
| See on Biblioteca Universitat Ramon Llull: | https://discovery.url.edu/permalink/34CSUC_URL/1im36ta/alma991009627286206719 |
Table of Contents:
- What Do You Mean by Cost?
- Tablescans
- Single Table Selectivity
- Simple B-tree Access
- The Clustering Factor
- Selectivity Issues
- Histograms
- Bitmap Indexes
- Query Transformation
- Join Cardinality
- Nested Loops
- Hash Joins
- Sorting and Merge Joins
- The 10053 Trace File.
