Parallel Query Processing Using Shared Memory Multiprocessors and Disk Arrays

... streams of tuples control packet

Ngày tải lên: 28/04/2014, 13:32

Ngày tải lên: 12/09/2012, 15:05

... eld of signal processing in a clear and lucid style that empha- sizes principles and applications in order to foster an intuitive approach to learning and 2. to present signal processing techniques ... 1.4 DSP AND ITS APPLICATIONS Application areas of signal processing have grown dramatically in importance in recent times, in parallel with the growth of powerful and...

Ngày tải lên: 29/03/2014, 10:20

... SQL query and a current prototype from Microsoft of a basic query interface. Module 8: Using XQuery to Link and Query XML Documents 11 Lesson: Using XQuery ! Basic XQuery ! Advanced XQuery ! The ... Lesson: What Is XQuery? 2 Lesson: Using XQuery 11 Lab 8: Using Simple and Advanced XQuery Expressions 17 Review 22 Course Evaluation 23 Module 8: Using XQ...

Ngày tải lên: 10/12/2013, 16:15

... Models for Parallel Processors 191 7.5. Parallel Processing of Search Queries using Index 192 7.5.1. Parallel One-Index Search Query Processing 192 7.5.2. Parallel Multi-Index Search Query Processing ... advanced query operations. This part covers groupby-join operations, parallel indexing, parallel object-oriented query processing, in particular, collection join,...

Ngày tải lên: 21/01/2014, 18:20

... computing can be used? There are four different parallel database architectures: (i) shared- memory, (ii) shared- disk, (iii) shared- nothing, and (iv) shared- something architectures. Distributed computing ... physically or log- ically. In a shared- nothing architecture, data is placed permanently over several disks, whereas in a shared- everything (i.e., shared- memory and...

Ngày tải lên: 21/01/2014, 18:20

... group-by attribute and performs the aggregate function. Using Query 4.5 as an example, one node may produce, for example, (Math, 300) and (Science, 500) and another node (Business, 100) and (Science, 100). ... methods. Yamane and Take (1987) and Zhao et al. (2000) proposed a parallel partition sort. Lorie and Young (VLDB 1999) concentrated on the communication costs of pa...

Ngày tải lên: 21/01/2014, 18:20

... Description System and data parameters N Number of processors R and S Size of table R and table S jRj and jSj Number of records in table R and table S jR i j and jS i j Number of records in table R and table ... between the join query result and the product of the two tables R and S. For example, if there are 100 and 200 records from table R and table S, respectively,...

Ngày tải lên: 21/01/2014, 18:20

... of each parallel indexing structure in the context of parallel search and join query processing. 7.7.1 Comparative Analysis of Parallel Search Index In this section, parallel one-index and multi-index ... algorithm for parallel multi-index search query processing using a one-index method is presented in Figure 7.20. Algorithm: Parallel- Multi-Index-Selection- One-Inde...

Ngày tải lên: 21/01/2014, 18:20