• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Chapter 8
Chapter 8

... Generally the term is reserved for more formal database systems like access, Oracle or MySQL. ...
Access Pattern Confidentiality-Preserving - CEUR
Access Pattern Confidentiality-Preserving - CEUR

... Oblivious RAM (ORAM) was first proposed by Goldreich and Ostrovsky as a way to ensure software protection [8]. ORAM prevents that an attacker who observes the RAM learns any information about the RAM access patterns of executed programs. Improved schemes were proposed over the last few years which h ...
Chapter 9 – Unix Shell Scripting
Chapter 9 – Unix Shell Scripting

... • How to develop php/asp/jsp web page – Separate the HTML design and php/asp/jsp coding – The artists design the look and feel of the web page – The coders insert php/asp/jsp code into HTML files ...
Chapter 17: Parallel Databases
Chapter 17: Parallel Databases

... Intraoperation Parallelism – parallelize the execution of each  individual operation in the query. Interoperation Parallelism – execute the different operations in a  query expression in parallel. ...
Fundamentals of Database Systems
Fundamentals of Database Systems

... Database State for COMPANY All examples discussed below refer to the COMPANY database shown here. ...
Computer Forensics
Computer Forensics

... C2 Security Requirements • A system must be able to identify a user. – Implement the notion of user credentials (e.g., username and a password) – Require a user to login using this credentials – Have a well-defined process by which a user enters these credentials, – Protect these credentials from c ...
Java JDBC
Java JDBC

... customized interfaces to standard database management systems through a number of approaches. • JDBC uses a standardized instruction syntax (SQL) to send queries to databases • The JDBC-ODBC bridge allows Java to use an existing database connectivity method to gain easy access to existing databases. ...
Ch10 File
Ch10 File

... • When a database contains two or more tables, the tables are usually related. • For instance, the two tables Cities and Countries are related by their country field. • Notice that every entry in Cities.country appears uniquely in Countries.country and Countries.country is a primary key. • We say th ...
End Sub
End Sub

... • When a database contains two or more tables, the tables are usually related. • For instance, the two tables Cities and Countries are related by their country field. • Notice that every entry in Cities.country appears uniquely in Countries.country and Countries.country is a primary key. • We say th ...
SharePoint 2010 Readiness
SharePoint 2010 Readiness

... In-Place Upgrade Use existing hardware – servers/farm offline during upgrade Configuration and all content upgraded Farm-wide settings preserved Customizations available after upgrade Recommended for small or non-production environments ...
Introduction to Web Development
Introduction to Web Development

... For queries that add or update records, or alter table’s structure, use the mysqli_info() function to return information about the query The mysqli_info() function returns the number of operations for various types of actions, depending on the type of query The mysqli_info() function returns informa ...
granularity - Computer Science and Engineering
granularity - Computer Science and Engineering

... “the continuance of an effect after its cause is removed” • In the context of storing data in a computer system, this means that: “the data survives after the process with which it was created has ended” • In other words, for a data store to be considered persistent: “it must write to non-volatile s ...
Best Practices IBMr Building a Recovery Strategy for an
Best Practices IBMr Building a Recovery Strategy for an

... full database backups. The backup strategy should also identify and back up active data, thereby reducing the need to continually back up inactive data. For maximum protection and efficient recovery of data, begin planning your database recovery strategy at project inception and carry it through eac ...
Improving Domino and DB2 Performance Document Version 1
Improving Domino and DB2 Performance Document Version 1

... tables and indexes associated with the DB2 enabled Notes database that you specify. The reorganization operation is performed on the entire set of tables that can be shared by multiple Notes databases that are enabled for DB2. Running nCompact -B against a directory does not perform duplicate or red ...
1. The Client Server Model (Chapters 1 and 2, Berson)
1. The Client Server Model (Chapters 1 and 2, Berson)

... – DBMS and database move to the server – parts of the business and database logic that can be used by several clients are placed on the server 240-322 Cli/Serv.: Models/1 ...
extended version - Department of Computer Science, University of
extended version - Department of Computer Science, University of

... unions of conjunctive queries [21]. The processing of such a query critically draws on the observation that the traces of the compilation for subqueries of the input query are OBDDs, whose variable orders are compatible, depths are linear in the database size, and widths only depend on the number of ...
VLDB98 - Microsoft Research
VLDB98 - Microsoft Research

... proposals to construct hardware database machines to provide high performance operations. In general these have been proposed by hardware types with a clever solution in searchof a problem on which it might work.” ...
ODA X6-2 Model Family Business White Paper-2
ODA X6-2 Model Family Business White Paper-2

... and branch office deployments that don’t require enterprise class features, enabling them to realize the benefits of the Oracle Database Appliance to reduce costs and improve productivity. The Oracle Database Appliance X6-2-HA is built to run enterprise deployments that require the enhanced feature ...
PHP_chapter8
PHP_chapter8

... more computer files. Relational databases store data in tables Before you can start to work with a MySQL database, you must install a copy of MySQL on your personal computer or Web server, create a database instance for your script and create your initial tables by issuing the SQL CREATE TABLE ...
SeaChange Spot System - SeaChange International
SeaChange Spot System - SeaChange International

... expands the use of domain authentication to include access to databases, network shares, registry keys and local disks. Domain administrators have complete control over the creation and management of group and user accounts. Channel Capacity The maximum number of channels supported has been increase ...
Open - United States Power Squadrons
Open - United States Power Squadrons

... the downloading process. DB2000 will try to go on line but depending on ISP and browser security settings, it may be necessary to go on line manually before this procedure can work. If the “MQ Series Client” software is not available, then the email method may be used. Select menu Import/Request Ros ...
JDBC - Technicalsymposium
JDBC - Technicalsymposium

... implemented with native code, so they may perform better than all-Java drivers, but they also add an element of risk, as a defect in the native code can crash the Java Virtual Machine. Type 3: Net-protocol All-Java drivers Type 3 drivers define a generic network protocol that interfaces with a piece ...
Access versus Excel - Center
Access versus Excel - Center

... Organizations have a wide range of database needs and resources. From simple, short-term needs to long-term mission critical requirements, organizations create and support a variety of databases. Choosing the right technology is an ongoing challenge. Many organizations struggle with deciding whether ...
Computing with Java:
Computing with Java:

... machine which itself is a client of the database server. The marketing department might have several client programs running in their sales offices enabling salespersons to get necessary information. Rather than configuring each salesperson's machine to process all the details of the application, th ...
Read Chapter 3.1
Read Chapter 3.1

... Each term is one of: op or where op is one of: =, , >, . <.   Example of selection:  branch-name=“Perryridge”(account) ...
< 1 ... 77 78 79 80 81 82 83 84 85 ... 459 >

Concurrency control

In information technology and computer science, especially in the fields of computer programming, operating systems, multiprocessors, and databases, concurrency control ensures that correct results for concurrent operations are generated, while getting those results as quickly as possible.Computer systems, both software and hardware, consist of modules, or components. Each component is designed to operate correctly, i.e., to obey or to meet certain consistency rules. When components that operate concurrently interact by messaging or by sharing accessed data (in memory or storage), a certain component's consistency may be violated by another component. The general area of concurrency control provides rules, methods, design methodologies, and theories to maintain the consistency of components operating concurrently while interacting, and thus the consistency and correctness of the whole system. Introducing concurrency control into a system means applying operation constraints which typically result in some performance reduction. Operation consistency and correctness should be achieved with as good as possible efficiency, without reducing performance below reasonable levels. Concurrency control can require significant additional complexity and overhead in a concurrent algorithm compared to the simpler sequential algorithm.For example, a failure in concurrency control can result in data corruption from torn read or write operations.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report