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Integrating reliable memory in databases
... Cardoza96]. By replicating the memory or computer, Rio can also provide high availability. This replication can be done lazily or eagerly. An inexpensive example of lazy replication is to connect a serial line between the memory controllers of two computers, and to connect disks to both I/O controll ...
... Cardoza96]. By replicating the memory or computer, Rio can also provide high availability. This replication can be done lazily or eagerly. An inexpensive example of lazy replication is to connect a serial line between the memory controllers of two computers, and to connect disks to both I/O controll ...
2 FieldWorks database model
... strategy for identifying when some other program has changed this object while your program has it in its memory cache. UpdDttm: This is a “smalldatetime” that is updated automatically when changes are made in a class. When an object is dumped to Fieldworks XML, the Id, UpdStmp, and UpdDttm column ...
... strategy for identifying when some other program has changed this object while your program has it in its memory cache. UpdDttm: This is a “smalldatetime” that is updated automatically when changes are made in a class. When an object is dumped to Fieldworks XML, the Id, UpdStmp, and UpdDttm column ...
Elmasri/Navathe, Fundamentals of Database Systems, Fourth
... Using a dbms to store the documents as text: We can use a relational or object dbms to store whole XML documents as text fields within the dbms records or objects. This aproach can be used if the dbms has a special module for document processing, and would work for storing schemaless and document-ce ...
... Using a dbms to store the documents as text: We can use a relational or object dbms to store whole XML documents as text fields within the dbms records or objects. This aproach can be used if the dbms has a special module for document processing, and would work for storing schemaless and document-ce ...
Database Theory - Binus Repository
... Tools include design tools , performance tools , special interfaces , etc. – Operators and maintenance personnel : Work on running and maintaining the hardware and software environment for the database system. ...
... Tools include design tools , performance tools , special interfaces , etc. – Operators and maintenance personnel : Work on running and maintaining the hardware and software environment for the database system. ...
On the complexity of nested relational operations
... Thus, unnesting and dynamic constants are linear operations w.r .t. a slightly more sophisticated notion of linearity. Finally, we are interested in combinations (compositions) oflinear operations. If we use a query language where the model is closed under its operations, we can construct complex ex ...
... Thus, unnesting and dynamic constants are linear operations w.r .t. a slightly more sophisticated notion of linearity. Finally, we are interested in combinations (compositions) oflinear operations. If we use a query language where the model is closed under its operations, we can construct complex ex ...
CIS 105 Survey of Computer Information Systems
... Data Mining. Analyzing data to discover patterns and relationships that are important to decision making. The process of extracting information from a database. ...
... Data Mining. Analyzing data to discover patterns and relationships that are important to decision making. The process of extracting information from a database. ...
Temporal Databases
... – Each tuple must include at least one timestamp. – Problem:What about queries that produce results that are not temporal? i.e. result of query is outside the domain of (temporal) database. – eg. Get names of all people who have supplied something in the past. • Redefine temporal database: database ...
... – Each tuple must include at least one timestamp. – Problem:What about queries that produce results that are not temporal? i.e. result of query is outside the domain of (temporal) database. – eg. Get names of all people who have supplied something in the past. • Redefine temporal database: database ...
Storing Data: Disks and Files
... • To change the redo log location, say onto a mirrored RAID, bring down the server, which “uses up” the logs in a sense, edit the location, and bring up the server. • Best to do this sort of setup as part of database initialization. ...
... • To change the redo log location, say onto a mirrored RAID, bring down the server, which “uses up” the logs in a sense, edit the location, and bring up the server. • Best to do this sort of setup as part of database initialization. ...
งานนำเสนอ PowerPoint
... module is responsible for implementing a particular strategy for concurrency control. If a failure occurs during the transaction, then the database could be inconsistent. It is the task of the recovery manager to ensure that the database in consistent state. Finally, the buffer manager is responsibl ...
... module is responsible for implementing a particular strategy for concurrency control. If a failure occurs during the transaction, then the database could be inconsistent. It is the task of the recovery manager to ensure that the database in consistent state. Finally, the buffer manager is responsibl ...
UNIVERSITY OF NAIROBI SCHOOL OF COMPUTING AND INFORMATICS
... Partition: A partition is a division of a logical database or its constituting elements into distinct independent parts. Heterogeneous Database System is an automated (or semi-automated) system for the integration of heterogeneous, disparate database management systems to present a user with a singl ...
... Partition: A partition is a division of a logical database or its constituting elements into distinct independent parts. Heterogeneous Database System is an automated (or semi-automated) system for the integration of heterogeneous, disparate database management systems to present a user with a singl ...
Transactions - Stanford Lagunita
... System-Failure Goal Guarantee all-or-nothing execution, regardless of failures ...
... System-Failure Goal Guarantee all-or-nothing execution, regardless of failures ...
Backup/Restore and Replication
... Which recovery model is best for the databases in your environment? This setting depends on the critically of the data and the acceptable data loss in the event of a system failure. SQL Server 2000 offers three recovery models that can be implemented for your databases. The appropriate choice depend ...
... Which recovery model is best for the databases in your environment? This setting depends on the critically of the data and the acceptable data loss in the event of a system failure. SQL Server 2000 offers three recovery models that can be implemented for your databases. The appropriate choice depend ...
ToR-MRM4Syria-RO-MRM-Database-manager-TA
... Ensuring systematic data collection, analysis and safe and secure information management for the MRM for Syria (MRM4Syria) requires the development and implementation of a Regional information management system (IMS) specific to the MRM4Syria. This includes the IMS database itself - which will likel ...
... Ensuring systematic data collection, analysis and safe and secure information management for the MRM for Syria (MRM4Syria) requires the development and implementation of a Regional information management system (IMS) specific to the MRM4Syria. This includes the IMS database itself - which will likel ...
Slide
... Most XML query languages are extensions of SQL • implementation based on same paradigm • uses extensions of relational algebra • query optimization builds upon relational techniques ...
... Most XML query languages are extensions of SQL • implementation based on same paradigm • uses extensions of relational algebra • query optimization builds upon relational techniques ...
Updateable Views
... view definition any information about intents of view updates. The information has the form of procedures, which dynamically overload generic view updating operation. This feature opens possibilities, which have not been even considered yet in other approaches. The approach is relevant not only to a ...
... view definition any information about intents of view updates. The information has the form of procedures, which dynamically overload generic view updating operation. This feature opens possibilities, which have not been even considered yet in other approaches. The approach is relevant not only to a ...
Transparent Java access to mediated database objects
... Utilization of heterogeneous data sources, such as the Internet, is common today when it comes to collecting important information. With the increased use of Internet and other communication networks, computing environments turn out to be more and more distributed. This brings along a growing need f ...
... Utilization of heterogeneous data sources, such as the Internet, is common today when it comes to collecting important information. With the increased use of Internet and other communication networks, computing environments turn out to be more and more distributed. This brings along a growing need f ...
1 1. Introduction 1.1. Overview of POSTGRES and XPRS
... While there are many papers that propose query processing algorithms, there is a remarkable dearth of literature on real query optimizers. This dearth is even more acute in the area of parallel database machines. In fact, only the Gamma project appears to have published any details of its query opti ...
... While there are many papers that propose query processing algorithms, there is a remarkable dearth of literature on real query optimizers. This dearth is even more acute in the area of parallel database machines. In fact, only the Gamma project appears to have published any details of its query opti ...
IM-Ch01-DB-Systems-Ed10
... Good applications can't overcome bad database designs. The existence of a DBMS does not guarantee good data management, nor does it ensure that the database will be able to generate correct and timely information. Ultimately, the end user and the designer decide what data will be stored in the ...
... Good applications can't overcome bad database designs. The existence of a DBMS does not guarantee good data management, nor does it ensure that the database will be able to generate correct and timely information. Ultimately, the end user and the designer decide what data will be stored in the ...
Chapter 5 Relational Algebra
... database system will behave. For instance, somewhere in the DBMS must be a set of statements which indicate than when someone inserts data into a row of a relation, it has the effect which the user expects. One way to specify this is to use words to write an `essay' as to how the DBMS will operate, ...
... database system will behave. For instance, somewhere in the DBMS must be a set of statements which indicate than when someone inserts data into a row of a relation, it has the effect which the user expects. One way to specify this is to use words to write an `essay' as to how the DBMS will operate, ...
Calvin: Fast Distributed Transactions for Partitioned Database Systems
... transaction requests. In a traditional database implementation, simply replicating transactional input is not generally sufficient to ensure that replicas do not diverge, since databases guarantee that they will process transactions in a manner that is logically equivalent to some serial ordering of ...
... transaction requests. In a traditional database implementation, simply replicating transactional input is not generally sufficient to ensure that replicas do not diverge, since databases guarantee that they will process transactions in a manner that is logically equivalent to some serial ordering of ...
Probabilistic Databases: Diamonds in the Dirt (Extended Version)
... and instead we need to use some more concise representation formalism. One way to achieve that is to restrict the class of probabilistic databases that one may represent. A popular approach is to restrict the possible tuples to be either independent or disjoint. Call a probabilistic database block i ...
... and instead we need to use some more concise representation formalism. One way to achieve that is to restrict the class of probabilistic databases that one may represent. A popular approach is to restrict the possible tuples to be either independent or disjoint. Call a probabilistic database block i ...
Guided Test Generation for Database Applications via Synthesized
... solved with a constraint solver for test generation, but a constraint solver could not directly handle environment constraints. Considering the preceding four parts of constraints, applying DSE on testing database applications faces great challenges for generating both effective program inputs and s ...
... solved with a constraint solver for test generation, but a constraint solver could not directly handle environment constraints. Considering the preceding four parts of constraints, applying DSE on testing database applications faces great challenges for generating both effective program inputs and s ...
Distributed DBMS
... Database and Database Management System A database is an ordered collection of related data that is built for a specific purpose. A database may be organized as a collection of multiple tables, where a table represents a real world element or entity. Each table has several different fields that repr ...
... Database and Database Management System A database is an ordered collection of related data that is built for a specific purpose. A database may be organized as a collection of multiple tables, where a table represents a real world element or entity. Each table has several different fields that repr ...
Database Connectivity Dynamic Web Development [DWDDCO701]
... DBMS server to use. Once you connect, you can select a database to use through the connection with the mysql select db() function. In this example, we select the footballDB database. Let’s assume here that MySQL is installed on the same server as the scripting engine and therefore, we can use localh ...
... DBMS server to use. Once you connect, you can select a database to use through the connection with the mysql select db() function. In this example, we select the footballDB database. Let’s assume here that MySQL is installed on the same server as the scripting engine and therefore, we can use localh ...
Versant Object Database
![](https://commons.wikimedia.org/wiki/Special:FilePath/Versant_logo_2007.png?width=300)
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.