'Query execution' diaporamas de présentation

Graph Data Management Systems for New Application Domains: Social Networks & the Web of Data

Graph Data Management Systems for New Application Domains: Social Networks & the Web of Data. Tutorial at VLDB 2011. Welcome to Graphs. Graphs: Small and Large. Small graphs Manage a collection of small graphs Bioinformatics and cheminformatics Well studied Large graphs

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Database Techniek Query Optimization (chapter 14)

Database Techniek Query Optimization (chapter 14). Lecture 3. Query Rewriting Equivalence Rules Query Optimization Dynamic Programming (System R/DB2) Heuristics (Ingres/Postgres) De-correlation of nested queries Result Size Estimation Practicum Assignment 2. Lecture 3. Query Rewriting

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30 technical tips and tricks to speed query, report, and dashboard performance

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Managing and querying encrypted data

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SCALABLE QUERY PROCESSING IN SERVICE ORIENTED SENSOR NETWORKS

SCALABLE QUERY PROCESSING IN SERVICE ORIENTED SENSOR NETWORKS. Raja Bose Advisor: Dr. Abdelsalam (Sumi) Helal Mobile and Pervasive Computing Laboratory Department of Computer and Information Science and Engineering. Monday, November 24, 2008. Overview.

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How PG&E implemented SAP BI-A and did performance tuning

How PG&E implemented SAP BI-A and did performance tuning. Darin Lemos PG&E Bjarne Berg Director SAP BI Comerit Inc. Learning Points. See a practical example from PG&E and understand what you can expect on your implementation Learn how BI-A works

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Query Execution in Databases: An Introduction

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HR7.5 Department Security Tree Tuning

HR7.5 Department Security Tree Tuning. David Kurtz Go-Faster Consultancy Ltd. david@go-faster.co.uk www.go-faster.co.uk. Why Trees?. This is a technical presentation. Complex SQL Optimisers Query Execution Plans Indexes Replication. HRMS Department Security Tree. Financials

479 views • 39 slides

Intro to Query Optimization DB2 UDB for iSeries

Intro to Query Optimization DB2 UDB for iSeries. Tom McKinley IBM Rochester, MN USA. Background / Foundation. IBM's DB2 UDB Family. Three code bases... Based on the system history, architecture and operating system DB2 UDB for Linux, UNIX, Windows (LUW) DB2 UDB for z/OS (S/390)

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Parallel Computing in . NET 4 and Visual Studio 2010

James Kolpack, InRAD LLC popcyclical.com. Parallel Computing in . NET 4 and Visual Studio 2010. CodeStock is proudly partnered with:. RecruitWise and Staff with Excellence - www.recruitwise.jobs. Send instant feedback on this session via Twitter:

399 views • 32 slides

Triggers and Active Databases

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The Design and Implementation of Declarative Networks

The Design and Implementation of Declarative Networks. Boon Thau Loo University of Pennsylvania, University of California-Berkeley *. *This dissertation was completed as a graduate student at the University of California- Berkeley. Declarative Networking. A declarative framework for networks:

567 views • 31 slides

Query Processing

Query Processing. Steps in Query Processing. Validate and translate the query Good syntax. All referenced relations exist. Translate the SQL to relational algebra. Optimize Make it run faster. Evaluate. Translation Example. Possible SQL Query: SELECT balance FROM account

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Lecture 8: Query Execution: Efficient Join Processing

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Query Optimization

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Advanced Oracle DB tuning

Advanced Oracle DB tuning. Performance can be defined in very different ways (OLTP versus DSS) Specific goals and targets must be set => clear recognition of success Factors include response time and throughput Oracle specific tuning. Response time. Sum of service time + wait time

440 views • 24 slides

CPS 216: Advanced Database Systems

CPS 216: Advanced Database Systems. Shivnath Babu Fall 2006. Outline for Today. What this class is about: Data management What we will cover in this class Logistics. Application. Data. Data Management. Query. Query. Query. D ata B ase M anagement S ystem (DBMS).

367 views • 23 slides

Topics

Topics. Prompt page design. Topics. Prompt page design Large dataset considerations. Topics. Prompt page design Large dataset considerations Concurrent query execution (query hint). Topics. Prompt page design Large dataset considerations Concurrent query execution (query hint)

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Column Oriented Database Vs Row Oriented Databases

Column Oriented Database Vs Row Oriented Databases. By Rakesh Venkat. Index. Introduction- Column Oriented Databases List of Column Oriented Databases Pros and Cons MonetDB Performance Analysis LucidDB Performance Analysis Conclusion. Introduction.

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A Black-Box Approach to Query Cardinality Estimation

A Black-Box Approach to Query Cardinality Estimation. Tanu Malik, Randal Burns The Johns Hopkins University Nitesh V. Chawla Notre Dame University. The Black Box Approach. Estimate query result sizes without knowledge of Underlying data distributions Query execution plan

397 views • 14 slides