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March 24, 2008 ADBS: Index 1 Indexing Structures for Files
 

Summary: March 24, 2008 ADBS: Index 1
Indexing Structures for Files
March 24, 2008 ADBS: Index 2
Chapter Outline
Indexes as Access Paths
Single Level Indexes
Primary Indexes
Clustering Indexes
Secondary Indexes
Properties of Index Types
Multilevel Indexes
Dynamic Multilevel Indexes Using B-Trees and B+-Trees
Indexes on Multiple Keys
March 24, 2008 ADBS: Index 3
- Indexes as Access Paths ...
A single-level index is an auxiliary file that makes it more
efficient to search for a record in the data file.
The index is usually specified on one field of the file
(although it could be specified on several fields)
One form of an index is a file of entries

  

Source: Adam, Salah - Department of Information and Computer Science, King Fahd University of Petroleum and Minerals

 

Collections: Computer Technologies and Information Sciences