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Le forme di mercato - European Virtual Museum
... it is not oriented towards the calculation system. As a result, the model does not include the rules, structures and operations referring to the physical implementation of the database system. However, one of the objectives of the relational model was to introduce a clear distinction between the phy ...
... it is not oriented towards the calculation system. As a result, the model does not include the rules, structures and operations referring to the physical implementation of the database system. However, one of the objectives of the relational model was to introduce a clear distinction between the phy ...
PeopleSoft Database Structure
... It is possible to suppress creation of an index by the Application Designer for some or all platforms (add/edit index dialog) In PSFT finapps much of the batch processing is status driven – index status columns – histograms make sense because status is relatively recent Majority of indexes are ...
... It is possible to suppress creation of an index by the Application Designer for some or all platforms (add/edit index dialog) In PSFT finapps much of the batch processing is status driven – index status columns – histograms make sense because status is relatively recent Majority of indexes are ...
Python sqlite3
... This method commits the current transaction. If you don't call this method, anything you did since the last call to commit() is not visible from other database connections. connection.close() This method closes the database connection. Note that this does not automatically call commit(). If you just ...
... This method commits the current transaction. If you don't call this method, anything you did since the last call to commit() is not visible from other database connections. connection.close() This method closes the database connection. Note that this does not automatically call commit(). If you just ...
Designing an XML Database Engine: API and
... Fig 3.1 Components of ‘Db4XML’ engine Query evaluation is supported by two types of index structures. The hierarchical (DOM) structure of the XML documents allows for use of a path index. A value index also supports query evaluation. The engine supports multiple transactions. The engine stores XML d ...
... Fig 3.1 Components of ‘Db4XML’ engine Query evaluation is supported by two types of index structures. The hierarchical (DOM) structure of the XML documents allows for use of a path index. A value index also supports query evaluation. The engine supports multiple transactions. The engine stores XML d ...
CS245A8 - Computer Science
... Draw and label contours for objects of interest Determine relevant features and spatial relationships (e.g., location, containment, intersection) of the selected objects Organize the features and spatial relationships of objects into a feature database Classify the feature database into a type abstr ...
... Draw and label contours for objects of interest Determine relevant features and spatial relationships (e.g., location, containment, intersection) of the selected objects Organize the features and spatial relationships of objects into a feature database Classify the feature database into a type abstr ...
004.02 Paterson Object Persistence December 2004
... • Sun’s Enterprise JavaBeans (EJB), an advanced server-side Java component architecture, has its own persistence mechanism, Container Managed Persistence (CMP) • There are also open-source OR mapping frameworks which work in a similar way to JDO, including Hibernate, ObJectRelationalBridge (OJB) and ...
... • Sun’s Enterprise JavaBeans (EJB), an advanced server-side Java component architecture, has its own persistence mechanism, Container Managed Persistence (CMP) • There are also open-source OR mapping frameworks which work in a similar way to JDO, including Hibernate, ObJectRelationalBridge (OJB) and ...
Object Persistence
... • Sun’s Enterprise JavaBeans (EJB), an advanced server-side Java component architecture, has its own persistence mechanism, Container Managed Persistence (CMP) • There are also open-source OR mapping frameworks which work in a similar way to JDO, including Hibernate, ObJectRelationalBridge (OJB) and ...
... • Sun’s Enterprise JavaBeans (EJB), an advanced server-side Java component architecture, has its own persistence mechanism, Container Managed Persistence (CMP) • There are also open-source OR mapping frameworks which work in a similar way to JDO, including Hibernate, ObJectRelationalBridge (OJB) and ...
OpenACS: robust web development framework
... OpenACS is a full featured web development framework to create scalable applications oriented to collaboration and online communities. Is in use by many big players such as greenpeace.org or the e-learning platform of the MIT Sloan School of Management. While the system is not trivial, here are expl ...
... OpenACS is a full featured web development framework to create scalable applications oriented to collaboration and online communities. Is in use by many big players such as greenpeace.org or the e-learning platform of the MIT Sloan School of Management. While the system is not trivial, here are expl ...
Controlling image size when using GemStone
... system. This means when a single instance of Employee is replicated, every employee in the database would also be replicated. To prevent allEmployees from being replicated in the image, the Smalltalk class would not have the allEmployees instance variable. In this case, the Smalltalk class’s instanc ...
... system. This means when a single instance of Employee is replicated, every employee in the database would also be replicated. To prevent allEmployees from being replicated in the image, the Smalltalk class would not have the allEmployees instance variable. In this case, the Smalltalk class’s instanc ...
Kroenke-DBP-e10-PPT-Chapter12
... into COM objects, making it easier for vendors to implement portions of functionality. – This characteristic overcomes a major disadvantage of ODBC. – With ODBC, a vendor must create an ODBC driver for almost all DBMS features and functions in order to participate in ODBC at ...
... into COM objects, making it easier for vendors to implement portions of functionality. – This characteristic overcomes a major disadvantage of ODBC. – With ODBC, a vendor must create an ODBC driver for almost all DBMS features and functions in order to participate in ODBC at ...
Slide 1
... program-to-program applications using the API generated by the SDK build process. The web application handles both read and write access to the underlying SQL database in order to support the creation and management of application objects. At the core of the generated caCORE web application is Hiber ...
... program-to-program applications using the API generated by the SDK build process. The web application handles both read and write access to the underlying SQL database in order to support the creation and management of application objects. At the core of the generated caCORE web application is Hiber ...
Chapter 4 Product Design
... Product design addresses the external structure of the software External structure includes all software components that interact with external resources, such as ...
... Product design addresses the external structure of the software External structure includes all software components that interact with external resources, such as ...
Chapter15 - Columbia College
... XML tagging through to the construction of logical views using QBE • You learned a lot, including the following: – XML tags are an effective way to record metadata in a file – Metadata is used to identify values; it can capture the affinity among values of the same entity, and can collect a group of ...
... XML tagging through to the construction of logical views using QBE • You learned a lot, including the following: – XML tags are an effective way to record metadata in a file – Metadata is used to identify values; it can capture the affinity among values of the same entity, and can collect a group of ...
Executive Summary
... Edition (J2SE) classes as seen in Figure 2. These containers create an object-oriented environment. These containers interact with one another transparently through the use of standard protocols. Most products built on the J2EE make use of all four of these container types [6]. These containers are ...
... Edition (J2SE) classes as seen in Figure 2. These containers create an object-oriented environment. These containers interact with one another transparently through the use of standard protocols. Most products built on the J2EE make use of all four of these container types [6]. These containers are ...
here - TU Dortmund
... type of our build system from Debug to Release. The build type is stored in the variable CMAKE_BUILD_TYPE. Now, we can change the build type using the following command: cmake -DCMAKE_BUILD_TYPE=Release .. There are many variables that allow customization. We list here the most important ones: ENABL ...
... type of our build system from Debug to Release. The build type is stored in the variable CMAKE_BUILD_TYPE. Now, we can change the build type using the following command: cmake -DCMAKE_BUILD_TYPE=Release .. There are many variables that allow customization. We list here the most important ones: ENABL ...
Data Aware Components - Java Notes
... persistence, which is an adjective that describes data that outlives the process that created it. In this context, this means that the data entered by the user in a GUI component is stored temporarily in an object in primary memory and then permanently in a database. There are many ways to access a ...
... persistence, which is an adjective that describes data that outlives the process that created it. In this context, this means that the data entered by the user in a GUI component is stored temporarily in an object in primary memory and then permanently in a database. There are many ways to access a ...
Hyperdatabases - FTP Directory Listing
... While TP-Monitors are definitely helpful, and they are used in many large-scale implementations, we see some room for extensions: an HDB would add design tools for specification of distributed applications and automatic generation of program code, as extended workflow systems do [AHST97]. Further, a ...
... While TP-Monitors are definitely helpful, and they are used in many large-scale implementations, we see some room for extensions: an HDB would add design tools for specification of distributed applications and automatic generation of program code, as extended workflow systems do [AHST97]. Further, a ...
Database manipulation using Models classes
... # Warning: The database defined as "test" will be erased and # re-generated from your development database when you run "rake". # Do not set this db to the same as development or production. test: <<: *default database: db/test.sqlite3 production: <<: *default database: db/production.sqlite3 ...
... # Warning: The database defined as "test" will be erased and # re-generated from your development database when you run "rake". # Do not set this db to the same as development or production. test: <<: *default database: db/test.sqlite3 production: <<: *default database: db/production.sqlite3 ...
Transactions and Concurrency Control
... Each Xact must obtain a S (shared) lock on object before reading, and an X (exclusive) lock on object before writing. All locks held by a transaction are released when the ...
... Each Xact must obtain a S (shared) lock on object before reading, and an X (exclusive) lock on object before writing. All locks held by a transaction are released when the ...
Chapter 23: Advanced Data Types and New Applications
... than on the actual set of points stored. Region quadtrees store array (raster) information. A node is a leaf node if all the array values in the region that it covers are the same. Otherwise, it is subdivided further into four children of equal area, and is therefore an internal node. Each nod ...
... than on the actual set of points stored. Region quadtrees store array (raster) information. A node is a leaf node if all the array values in the region that it covers are the same. Otherwise, it is subdivided further into four children of equal area, and is therefore an internal node. Each nod ...
Database Persistence, Without The Performance Penalty
... vendors offer transaction logging, which keeps a record of changes to the database. But this logging requires writing to persistent storage. Will re-introducing these “database writes” eliminate IMDSs’ performance advantage over disk-based DBMSs? Another solution is to deploy an IMDS using DRAM that ...
... vendors offer transaction logging, which keeps a record of changes to the database. But this logging requires writing to persistent storage. Will re-introducing these “database writes” eliminate IMDSs’ performance advantage over disk-based DBMSs? Another solution is to deploy an IMDS using DRAM that ...
Slide 1
... ◦ You: Completed two tutorials with step-by-step instructions for creating queries in MS Access. Now must apply knowledge and skills learned in the tutorials. ...
... ◦ You: Completed two tutorials with step-by-step instructions for creating queries in MS Access. Now must apply knowledge and skills learned in the tutorials. ...
Chapter 10: Creating and Maintaining Geographic Databases
... object (ODBMS), and object-relational (ORDBMS). A relational database comprises a set of tables, each a two-dimensional list (or array) of records containing attributes about the objects under study. Object database management systems (ODBMS) were initially designed to address weaknesses of RDBMS, i ...
... object (ODBMS), and object-relational (ORDBMS). A relational database comprises a set of tables, each a two-dimensional list (or array) of records containing attributes about the objects under study. Object database management systems (ODBMS) were initially designed to address weaknesses of RDBMS, i ...
Performance Considerations for Web Applications
... general, complex data manipulation can be handled much more efficiently with database code. Java programmers should minimize information returned to the application server and, where convenient, use the database to handle computations. Step 8. Application Server-to-Client Machine Transmission Proble ...
... general, complex data manipulation can be handled much more efficiently with database code. Java programmers should minimize information returned to the application server and, where convenient, use the database to handle computations. Step 8. Application Server-to-Client Machine Transmission Proble ...
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.