Document
... Transaction to transfer $50 from account A to account B: 1. read(A) 2. A := A – 50 3. write(A) ...
... Transaction to transfer $50 from account A to account B: 1. read(A) 2. A := A – 50 3. write(A) ...
Database Tools by Skype
... Enables DBA's to move parts of database into another database without changing application interface. Easier to manage security if you don't have to do it on table level. In most cases you need to control what user can do and on which data not on what tables. All transactions can be made in au ...
... Enables DBA's to move parts of database into another database without changing application interface. Easier to manage security if you don't have to do it on table level. In most cases you need to control what user can do and on which data not on what tables. All transactions can be made in au ...
Understanding Code Pages and Character Conversion
... character conversion can occur when data passes between databases, database clients, and PowerCenter connection objects that do not use the same code page. When the code pages are not the same, characters can convert to incorrect or undefined values. The result of character conversion can be data co ...
... character conversion can occur when data passes between databases, database clients, and PowerCenter connection objects that do not use the same code page. When the code pages are not the same, characters can convert to incorrect or undefined values. The result of character conversion can be data co ...
An Adaptive Replication Environment for a Relational Database
... In a replication database environment, several replicas are needed so that high availability and integrity can be achieved. Also, the use of several replicas enables to deal with a number of independent failures. Hence, each DBMS may have their particular configuration of hardware and software, even ...
... In a replication database environment, several replicas are needed so that high availability and integrity can be achieved. Also, the use of several replicas enables to deal with a number of independent failures. Hence, each DBMS may have their particular configuration of hardware and software, even ...
Document
... Index-structures are typically accessed very often, much more than other database items. Treating index-structures like other database items leads to low concurrency. Two-phase locking on an index may result in transactions executing practically one-at-a-time. It is acceptable to have nonserializabl ...
... Index-structures are typically accessed very often, much more than other database items. Treating index-structures like other database items leads to low concurrency. Two-phase locking on an index may result in transactions executing practically one-at-a-time. It is acceptable to have nonserializabl ...
ATLAS Distributed Computing - Indico
... PanDA complete archive now hosts information of more than 900 million jobs – all jobs since the system start in 2006. ADCR database has two standby databases: - Data Guard for disaster recovery and backup offloading. - Active Data Guard for read-only replica. ...
... PanDA complete archive now hosts information of more than 900 million jobs – all jobs since the system start in 2006. ADCR database has two standby databases: - Data Guard for disaster recovery and backup offloading. - Active Data Guard for read-only replica. ...
ppt
... Implementation of Atomicity and Durability The recovery-management component of a database ...
... Implementation of Atomicity and Durability The recovery-management component of a database ...
Chapter 15: Transactions Transaction Concept ACID Properties
... Implementation of Atomicity and Durability ! The recovery-management component of a database ...
... Implementation of Atomicity and Durability ! The recovery-management component of a database ...
CHAPTER 2
... are logical approach [4,7,9,13] composite approach [15], schema integration [16], and view integration [9,17,18]. Schema integration and view integration have been used to refer closely to each other. However, Spaccapietra et al., [17] argue that there are some differences between the two approaches ...
... are logical approach [4,7,9,13] composite approach [15], schema integration [16], and view integration [9,17,18]. Schema integration and view integration have been used to refer closely to each other. However, Spaccapietra et al., [17] argue that there are some differences between the two approaches ...
Review 1
... promoted to the parent (the middle key value 'moves' to the parent to become the discriminator between this left and right sibling) ...
... promoted to the parent (the middle key value 'moves' to the parent to become the discriminator between this left and right sibling) ...
Document
... – Determine the type and the extent of the required recovery – If the entire database needs to be recovered, use the most recent backup copy of the database in a known consistent state – The backup copy is rolled forward to restore all subsequent transactions by using transaction log. Use the transa ...
... – Determine the type and the extent of the required recovery – If the entire database needs to be recovered, use the most recent backup copy of the database in a known consistent state – The backup copy is rolled forward to restore all subsequent transactions by using transaction log. Use the transa ...
Chapter 7: Relational Database Design
... Implementation of Atomicity and Durability The recovery-management component of a database system implements the support for atomicity and durability. ...
... Implementation of Atomicity and Durability The recovery-management component of a database system implements the support for atomicity and durability. ...
ximpel+sqlite.pdf
... what the benefits can be. Because there is no literature available which covers the benefits of adding database functionality to an interactive video platform, I researched some literature on the function of databases in web 2.0. According to Web 2.0 Architectures [6]: Databases are typically used t ...
... what the benefits can be. Because there is no literature available which covers the benefits of adding database functionality to an interactive video platform, I researched some literature on the function of databases in web 2.0. According to Web 2.0 Architectures [6]: Databases are typically used t ...
We have finished the LONG to CLOB conversions in University of
... tablesapaces). The backup will also need more spaces. 9. The conversions needed temporary space to hold the data during the conversion. During the conversion process, Oracle needs space to hold intermediate data that have been converted before all the data have been converted. 10. The operation gene ...
... tablesapaces). The backup will also need more spaces. 9. The conversions needed temporary space to hold the data during the conversion. During the conversion process, Oracle needs space to hold intermediate data that have been converted before all the data have been converted. 10. The operation gene ...
Distributed Architecture of Oracle Database In
... The In-memory Column Store is carved out from the Oracle System Global Area (SGA) [12] per database instance based on a size provided by the user. If the database server has NUMA enabled [19], the underlying physical memory of the column store is allocated equally across all NUMA nodes. Logically, i ...
... The In-memory Column Store is carved out from the Oracle System Global Area (SGA) [12] per database instance based on a size provided by the user. If the database server has NUMA enabled [19], the underlying physical memory of the column store is allocated equally across all NUMA nodes. Logically, i ...
Lecture 21 - The University of Texas at Dallas
... functioning until such a time T when a penetration occurs. Similarly, until time T the DBMS is created, maintained, and operated in a secure manner, and all network communication is performed through secure channels (such as SSL), ensuring the correctness of the internal state of the DBMS. Since ...
... functioning until such a time T when a penetration occurs. Similarly, until time T the DBMS is created, maintained, and operated in a secure manner, and all network communication is performed through secure channels (such as SSL), ensuring the correctness of the internal state of the DBMS. Since ...
Aspects of Database Query Evaluation
... In words, there is a polynomial-time algorithm for the following problem: given a database D and a Boolean conjunctive query Q that is equivalent to some conjunctive query of ...
... In words, there is a polynomial-time algorithm for the following problem: given a database D and a Boolean conjunctive query Q that is equivalent to some conjunctive query of ...
OnLine Analytical Problem (OLAP)
... gigabytes and terabytes and summarizing this data into a form information that can by used by business analysts. ...
... gigabytes and terabytes and summarizing this data into a form information that can by used by business analysts. ...
Lesson 1: Access Basics
... organize information for users. For example… Reference databases, such as RefDesk, offer factual information of all kinds. Sites like Download.com and Apple iTunes organize music files so they can be downloaded to another kind of database on a personal music player. ...
... organize information for users. For example… Reference databases, such as RefDesk, offer factual information of all kinds. Sites like Download.com and Apple iTunes organize music files so they can be downloaded to another kind of database on a personal music player. ...
PGS99
... ta will be committed or aborted. The exact moment this happens depends on how the termination protocol is implemented, and will be discussed in Section 4. ...
... ta will be committed or aborted. The exact moment this happens depends on how the termination protocol is implemented, and will be discussed in Section 4. ...
Document
... This directory contains all resources related to the application that are not in the document root of the application. This is where your web application deployment descriptor is located. Note that the WEB-INF directory is not part of the ...
... This directory contains all resources related to the application that are not in the document root of the application. This is where your web application deployment descriptor is located. Note that the WEB-INF directory is not part of the ...
Data Archive Project Timo-Pekka Kemppainen
... Helsinki Metropolia University of Applied Sciences had a need to archive their contracts in digital format instead of using old file cabinets. Specifications were created together with the customer at the start of the project. The project was to produce a complete product for the end user to work wi ...
... Helsinki Metropolia University of Applied Sciences had a need to archive their contracts in digital format instead of using old file cabinets. Specifications were created together with the customer at the start of the project. The project was to produce a complete product for the end user to work wi ...
Versant Object Database
Versant Object Database (VOD) is an object database software product developed by Versant Corporation.The Versant Object Database enables developers using object oriented languages to transactionally store their information by allowing the respective language to act as the Data Definition Language (DDL) for the database. In other words, the memory model is the database schema model.In general, persistence in VOD in implemented by declaring a list of classes, then providing a transaction demarcation application programming interface to use cases. Respective language integrations adhere to the constructs of that language, including syntactic and directive sugars.Additional APIs exist, beyond simple transaction demarcation, providing for the more advanced capabilities necessary to address practical issues found when dealing with performance optimization and scalability for systems with large amounts of data, many concurrent users, network latency, disk bottlenecks, etc.