'Multilevel index' diaporamas de présentation

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Indexing and Hashing

Indexing and Hashing

Indexing and Hashing. Outline. Basic Concepts Ordered Indices B+-Tree Index Files B-Tree Index Files Static Hashing Dynamic Hashing Comparison of Ordered Indexing and Hashing Index Definition in SQL Multiple-Key Access. pointer. search-key. Basic Concepts.

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1.53k views • 56 slides
File Systems

File Systems

File Systems. Review of File Systems and Disk Management . File System Functions. Disk Management : allocate disk blocks to files Naming (device independence): how to map user file names into physical addresses Protection : security and sharing of files, as needed

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746 views • 49 slides
Query Processing

Query Processing

Query Processing. Presented by Aung S. Win. Objectives. Query processing and optimization. Static versus dynamic query optimization. How a query is decomposed and semantically analyzed.

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666 views • 28 slides
FILE SYSTEM IMPLEMENTATION

FILE SYSTEM IMPLEMENTATION

FILE SYSTEM IMPLEMENTATION. FILE SYSTEM STRUCTURE: When talking about “the file system”, you are making a statement about both the rules used for file access, and about the algorithms used to implement those rules. Here’s a breakdown of those algorithmic pieces.

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452 views • 12 slides
Indexing

Indexing

Indexing. Lecture 15. HW#3 & Project. See course page for new instructions: submit source code and output of program on the given pairs of actors Can use unix machines (Makefile provided) Filenames/locations have changed Look at oracle info on course web page

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228 views • 11 slides

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