'Bitmap indexes' presentation slideshows

Database Systems I Data Warehousing

Database Systems I Data Warehousing. Introduction. Increasingly, organizations are analyzing current and historical data to identify useful patterns and support business strategies ( Decision Support ).

607 views • 36 slides

Chapter 8

Chapter 8. Indexes. Indexes Increase Query Speed. An index is a database object used primarily to improve the performance of SQL queries The function of a database index is similar to an index in the back of a book A book index associates a topic with a page number

485 views • 33 slides

Encoded Bitmap Indexing and Compressed Bitmaps

Encoded Bitmap Indexing and Compressed Bitmaps. Yashvardhan Sharma Faculty, CS&IS BITS-Pilani. Outline. Problems with Simple Bitmap Indexes Encoded Bitmap Indexes Compression of Bitmaps Byte Aligned Bitmap Code (BBC) Word Aligned Hybrid Code (WAH). Pure Bitmap Index.

577 views • 32 slides

ITCS 6163

329 views • 25 slides

Advanced Indexes

Advanced Indexes. Objectives. After completing this lesson, you should be able to do the following: Create bitmap indexes Identify bitmap index operations Specify bitmap index hints Use star transformations Create function-based indexes View data dictionary information. Bitmap Indexes.

256 views • 25 slides

Managing Indexes

Managing Indexes. Objectives. After completing this lesson, you should be able to do the following: List the different types of indexes and their uses Create various types of indexes Reorganize indexes Maintain indexes Monitor the usage of an index. Classification of Indexes. Logical

402 views • 21 slides

Managing Indexes

Managing Indexes. Objectives. After completing this lesson, you should be able to do the following: List the different types of indexes and their uses Create various types of indexes Reorganize indexes Maintain indexes Monitor the usage of an index. Classification of Indexes. Logical

212 views • 21 slides

Multidimensional & Bitmap Indexes

Multidimensional & Bitmap Indexes. Section 14.2 and 14.4. Lecture outline. Multidimensional Data Grid Files Bitmap Indexes Summary Reading List. - Multidimensional Data. Visualizing data as stored in n dimensional space Support queries that are not common in SQL Applications:

220 views • 20 slides

Bitmap Index Design and Evaluation

Bitmap Index Design and Evaluation. By: Chee-Yong Chan Yannis E.Ioannidis. Ariel Noy Data representation and retrieval seminar. Introduction. Query performance issues On Line Transaction Processing. Read write database. Decision Support System.

365 views • 19 slides

BITMAP INDEXES

BITMAP INDEXES. Sai Priya Rama Gopal SJSU ID : 007506408 Class ID: 125. Introduction. A bitmap index is a special kind of index that stores the bulk of its data as bit arrays (commonly called "bitmaps"). It answers most queries by performing bitwise logical operations on these bitmaps.

238 views • 14 slides

BITMAP INDEXES

BITMAP INDEXES. Barot Rushin (Id :- 108). Introduction. A bitmap index is a special kind of index that stores the bulk of its data as bit arrays (commonly called "bitmaps"). It answers most queries by performing bitwise logical operations on these bitmaps.

255 views • 14 slides