Database Systems: Design, Implementation, and Management
... • Designers, programmers, and end users see data in different ways • Different views of same data lead to designs that do not reflect organization’s operation • Data modeling reduces complexities of database design • Various degrees of data abstraction help reconcile varying views of same data ...
... • Designers, programmers, and end users see data in different ways • Different views of same data lead to designs that do not reflect organization’s operation • Data modeling reduces complexities of database design • Various degrees of data abstraction help reconcile varying views of same data ...
Information Retrieval Techniques
... • It is more for visualization than having any real basis • Most similarity measures work about the same ...
... • It is more for visualization than having any real basis • Most similarity measures work about the same ...
Database System Architectures
... Databases Atomicity needed even for transactions that update data at multiple sites The two-phase commit protocol (2PC) is used to ensure atomicity Basic idea: each site executes transaction until just before commit, and the leaves final decision to a coordinator Each site must follow decision of co ...
... Databases Atomicity needed even for transactions that update data at multiple sites The two-phase commit protocol (2PC) is used to ensure atomicity Basic idea: each site executes transaction until just before commit, and the leaves final decision to a coordinator Each site must follow decision of co ...
Performance Considerations for Web Applications
... Step 6. Database-to-Application Server Transmission Problems Transferring information from the database back to the application server (similar to Step 4) is usually not problematic from a performance standpoint. However, performance can suffer when a Java program requests a single record from a tab ...
... Step 6. Database-to-Application Server Transmission Problems Transferring information from the database back to the application server (similar to Step 4) is usually not problematic from a performance standpoint. However, performance can suffer when a Java program requests a single record from a tab ...
Document
... more expensive, but avoids some drawbacks of two-phase commit protocol. This protocol is not used in practice. (omitted) ...
... more expensive, but avoids some drawbacks of two-phase commit protocol. This protocol is not used in practice. (omitted) ...
Chapter 19: Distributed Databases
... more expensive, but avoids some drawbacks of two-phase commit protocol. This protocol is not used in practice. (omitted) ...
... more expensive, but avoids some drawbacks of two-phase commit protocol. This protocol is not used in practice. (omitted) ...
database
... • deny access to specific data • update process allowed only by a designated person from a specific terminal during certain time • using medium such as magnetic card ©1999 Addison Wesley Longman ...
... • deny access to specific data • update process allowed only by a designated person from a specific terminal during certain time • using medium such as magnetic card ©1999 Addison Wesley Longman ...
Chapter 9: Designing Databases.
... the role of designing databases in the analysis and design of an information system. ...
... the role of designing databases in the analysis and design of an information system. ...
Database System Architectures
... Implementation Issues for Distributed Databases Atomicity needed even for transactions that update data at multiple sites The two-phase commit protocol (2PC) is used to ensure atomicity ...
... Implementation Issues for Distributed Databases Atomicity needed even for transactions that update data at multiple sites The two-phase commit protocol (2PC) is used to ensure atomicity ...
Chapter 14: Databases and Database Management Systems
... – Object-Oriented Database Management System (OODBMS) • Database system in which multiple types of data are stored as objects along with their related code • Can contain virtually any type of data (video clip, text with music, etc.) along with the methods to be used with that data • Objects can be r ...
... – Object-Oriented Database Management System (OODBMS) • Database system in which multiple types of data are stored as objects along with their related code • Can contain virtually any type of data (video clip, text with music, etc.) along with the methods to be used with that data • Objects can be r ...
Chemical Database of Optimized Molecular Structures
... thus enabling easier linking of diverse data compilations. It was developed under IUPAC Project 2000-025-1-800 during the period 2000-2004 [14]. Chemical structures are expressed in terms of five layers of information - connectivity, tautomeric, isotopic, stereochemical, and electronic. The InChI al ...
... thus enabling easier linking of diverse data compilations. It was developed under IUPAC Project 2000-025-1-800 during the period 2000-2004 [14]. Chemical structures are expressed in terms of five layers of information - connectivity, tautomeric, isotopic, stereochemical, and electronic. The InChI al ...
wallies wallpaper and border
... Wally’s Wonderful World of Wallcoverings has hired you as a consultant to design a database management system for his chain of three stores that sell wallpaper and accessories .He would like to track sales, customers and employees. After initial meeting with Wally you have developed a list of busine ...
... Wally’s Wonderful World of Wallcoverings has hired you as a consultant to design a database management system for his chain of three stores that sell wallpaper and accessories .He would like to track sales, customers and employees. After initial meeting with Wally you have developed a list of busine ...
MCITP Administrator: Microsoft SQL Server 2005 Database
... install; cannot be altered • Assign users to roles for specific jobs • Datawriter and datareader can easily manage permissions but give permissions on every object © Wiley Inc. 2006. All Rights Reserved. ...
... install; cannot be altered • Assign users to roles for specific jobs • Datawriter and datareader can easily manage permissions but give permissions on every object © Wiley Inc. 2006. All Rights Reserved. ...
Distributed Database Design
... Relational Integrity Constraints Constraints are conditions that must hold on all valid relation instances Types of constraints Domain constraints Key constraints Entity integrity constraints Referential integrity constraints ...
... Relational Integrity Constraints Constraints are conditions that must hold on all valid relation instances Types of constraints Domain constraints Key constraints Entity integrity constraints Referential integrity constraints ...
Preserving Data Privacy with Record Retrieval using Visual
... are providing only the access control schemes over secured data rather than secure data retrieval2. Selfprotecting Electronic Medical Records (EMRs) is designed with attribute based encryption and it is implemented on mobile device. The developed prototype model uses a novel key, attribute based enc ...
... are providing only the access control schemes over secured data rather than secure data retrieval2. Selfprotecting Electronic Medical Records (EMRs) is designed with attribute based encryption and it is implemented on mobile device. The developed prototype model uses a novel key, attribute based enc ...
Kroenke-Auer-DBP-e11-PPT
... data model changes to an existing database. • Results of forward engineering should be tested before using it on an operational database. • Some tools will show the SQL that will execute during the forward engineering process: – If so, that SQL should be carefully reviewed. ...
... data model changes to an existing database. • Results of forward engineering should be tested before using it on an operational database. • Some tools will show the SQL that will execute during the forward engineering process: – If so, that SQL should be carefully reviewed. ...
Slide Template - Emunix Documentation on the Web
... A data source is an ODBC data structure that identifies a database and the DBMS that processes it Three types of data source names – A file data source is a file that can be shared among database users having the same DBMS driver and privilege – A system data source is local to a single computer ...
... A data source is an ODBC data structure that identifies a database and the DBMS that processes it Three types of data source names – A file data source is a file that can be shared among database users having the same DBMS driver and privilege – A system data source is local to a single computer ...
Database Management Systems (DBMS)
... Persistence –data in a database exist permanently in the sense the data can live beyond the scope of the process that created Validity/Integrity/ Correctness –data should be correct with respect to the real world entity that they represent Security –data should be protected from unauthorised access ...
... Persistence –data in a database exist permanently in the sense the data can live beyond the scope of the process that created Validity/Integrity/ Correctness –data should be correct with respect to the real world entity that they represent Security –data should be protected from unauthorised access ...
Database Systems: Design, Implementation, and Management
... • Logical data format: how human views the data • Physical data format: how computer must work with data • Each program must contain: ...
... • Logical data format: how human views the data • Physical data format: how computer must work with data • Each program must contain: ...
Chapter 1
... Types of Databases (continued) • Unstructured data exist in their original state • Structured data result from formatting – Structure applied based on type of processing to be performed ...
... Types of Databases (continued) • Unstructured data exist in their original state • Structured data result from formatting – Structure applied based on type of processing to be performed ...