Physical Database Design
... – An index can be built on any column or combination of columns – An index can be unique or non-unique – An index on the primary key is called the primary index – Most RDBMSs use an internal row id as the pointer to the row – Use of the index is transparent to the user ...
... – An index can be built on any column or combination of columns – An index can be unique or non-unique – An index on the primary key is called the primary index – Most RDBMSs use an internal row id as the pointer to the row – Use of the index is transparent to the user ...
DIA - Computação UFCG - Universidade Federal de Campina Grande
... A solution for semantic integration of data in a federated database, using mobile agents and ontologies. ...
... A solution for semantic integration of data in a federated database, using mobile agents and ontologies. ...
Slide Template - Gunadarma University
... one user’s work does not inappropriately influence another user’s work ...
... one user’s work does not inappropriately influence another user’s work ...
slide2
... You can open an existing query by clicking Queries on the Objects bar and then selecting the query you want to open. You can also create your own queries by clicking New on the Database window. To create a new query, you can use the Simple Query Wizard, which will bring you through the selections yo ...
... You can open an existing query by clicking Queries on the Objects bar and then selecting the query you want to open. You can also create your own queries by clicking New on the Database window. To create a new query, you can use the Simple Query Wizard, which will bring you through the selections yo ...
Selecting Data from a Database
... Configure a Query Single Row operation 7. From the process diagram palette, drag the Activity Picker activity onto your process diagram and drop it to the left of the Insert Row in DB operation. 8. In the Define Activity dialog box, expand the Foundation category. 9. From the JDBC service, select th ...
... Configure a Query Single Row operation 7. From the process diagram palette, drag the Activity Picker activity onto your process diagram and drop it to the left of the Insert Row in DB operation. 8. In the Define Activity dialog box, expand the Foundation category. 9. From the JDBC service, select th ...
Introduction The JDBC™ API was designed to keep
... Typically, a JDBC application connects to a target data source using two classes. One of them: DriverManager: this fully implemented class connects an application to a data source, which is specified by a database URL. When this class first attempts to establish a connection, it automatically lo ...
... Typically, a JDBC application connects to a target data source using two classes. One of them: DriverManager: this fully implemented class connects an application to a data source, which is specified by a database URL. When this class first attempts to establish a connection, it automatically lo ...
Simulating MDBS Transaction Management Protocols
... Simulating a MDBS with different protocols will provide insight into the performance of the protocols and any possible improvements. Current protocols are inadequate for use in wide-scale. production multidatabase systems. ...
... Simulating a MDBS with different protocols will provide insight into the performance of the protocols and any possible improvements. Current protocols are inadequate for use in wide-scale. production multidatabase systems. ...
Recovery
... redo updates of transactions that committed. In total: whenever a transaction T updates an object, both before- and after-image are written as one log-record and appended to the log. Additionally: when transaction starts, a BEGIN record is appended to the log; when transaction commits/aborts, a comm ...
... redo updates of transactions that committed. In total: whenever a transaction T updates an object, both before- and after-image are written as one log-record and appended to the log. Additionally: when transaction starts, a BEGIN record is appended to the log; when transaction commits/aborts, a comm ...
Gottfried Thesis First Draft
... database: due to the size of the database (>100 million primitives), the system we were running it on did not have enough available RAM to run queries efficiently. According to the Neo4j documentation, for a system with approximately 100 million primitives, you need a minimum of 4GB of available RAM ...
... database: due to the size of the database (>100 million primitives), the system we were running it on did not have enough available RAM to run queries efficiently. According to the Neo4j documentation, for a system with approximately 100 million primitives, you need a minimum of 4GB of available RAM ...
CUSTOMER_CODE SMUDE DIVISION_CODE SMUDE
... multimedia data is performed completely within the system. It is dependent neither on a network nor external storage systems. Multimedia data capture is performed primarily by and for the user of the dedicated system. Departmental System: It uses a LAN to provide shared data storage management. In a ...
... multimedia data is performed completely within the system. It is dependent neither on a network nor external storage systems. Multimedia data capture is performed primarily by and for the user of the dedicated system. Departmental System: It uses a LAN to provide shared data storage management. In a ...
Introduction to MS Access2003
... The Access window • When a database is opened, the Access window and the Database window will be displayed. • The Access window contains a menu bar, a toolbar, a task pane, and a status bar. • In the Access window, use the task pane to create a new database or to open an existing database. – To cre ...
... The Access window • When a database is opened, the Access window and the Database window will be displayed. • The Access window contains a menu bar, a toolbar, a task pane, and a status bar. • In the Access window, use the task pane to create a new database or to open an existing database. – To cre ...
Corporate PPT Template
... Automatic Segment Advisor and Dynamic Metric Baselines, to name a few, make my job considerably easier and allow me to focus more on strategic business IT issues and less on mundane day-to-day database management ...
... Automatic Segment Advisor and Dynamic Metric Baselines, to name a few, make my job considerably easier and allow me to focus more on strategic business IT issues and less on mundane day-to-day database management ...
Chapter 10
... • Write-ahead-log protocol: ensures transaction logs are written before data is updated • Redundant transaction logs: ensure physical disk failure will not impair ability to recover • Buffers: temporary storage areas in primary memory • Checkpoints: operations in which DBMS writes all its updated bu ...
... • Write-ahead-log protocol: ensures transaction logs are written before data is updated • Redundant transaction logs: ensure physical disk failure will not impair ability to recover • Buffers: temporary storage areas in primary memory • Checkpoints: operations in which DBMS writes all its updated bu ...
Introduction to Database Processing
... increases popularity of personal databases Graphical User Interface (GUI) make it easy to use – Examples of early DBMS products: dBase, R:base, and Paradox ...
... increases popularity of personal databases Graphical User Interface (GUI) make it easy to use – Examples of early DBMS products: dBase, R:base, and Paradox ...
VisDB:Multidimensional Data Exploration Tool
... It is possible for the user to assign two attributes to the axes and the system will arrange the relevance factors according to the directions of the distance of the data point from the selection predicate. With this method it is possible to provide better feedback to the user. However, we may not b ...
... It is possible for the user to assign two attributes to the axes and the system will arrange the relevance factors according to the directions of the distance of the data point from the selection predicate. With this method it is possible to provide better feedback to the user. However, we may not b ...
CS 122: Last Lecture
... “Avoid excessive or heavy queries that may impact the server performance. Inappropriate query use will result in a restriction of access. If you plan to execute a query that you think may be excessive, contact UCSC first to avoid the possibility of having your access blocked.” ...
... “Avoid excessive or heavy queries that may impact the server performance. Inappropriate query use will result in a restriction of access. If you plan to execute a query that you think may be excessive, contact UCSC first to avoid the possibility of having your access blocked.” ...
Subset Extraction [ WEB LAB - Requirements for Subset
... If the user wishes to have the subset on his local system, the entire data will have to be transferred either in the form of a schema or in the form of a list on the user’s interface. If the entire table is very big maybe subsets of this can be fetched from the server by the local system, or maybe t ...
... If the user wishes to have the subset on his local system, the entire data will have to be transferred either in the form of a schema or in the form of a list on the user’s interface. If the entire table is very big maybe subsets of this can be fetched from the server by the local system, or maybe t ...
Topics in Database Administration
... Checkpoint: A DBMS software utility that periodically suspends all transaction processing and synchronizes files within the database. – Some databases, such as Oracle, do not actually halt processing. They simply write checkpoint information to files. – The purpose of a checkpoint is to minimize the ...
... Checkpoint: A DBMS software utility that periodically suspends all transaction processing and synchronizes files within the database. – Some databases, such as Oracle, do not actually halt processing. They simply write checkpoint information to files. – The purpose of a checkpoint is to minimize the ...
The Application Model
... Examples of data services include create, read, update and delete, which are used by business services to modify a database. A business service does not need to know where data is located, how it is implemented, or how it is accessed. These tasks are handled by data services. ODBC Driver Database ...
... Examples of data services include create, read, update and delete, which are used by business services to modify a database. A business service does not need to know where data is located, how it is implemented, or how it is accessed. These tasks are handled by data services. ODBC Driver Database ...
Hibernate Vs JDBC - Mindfire Solutions
... database. So with JDBC, developer has to write code to map an object model's data representation to a relational data model and its corresponding database schema. Hibernate is flexible and powerful ORM solution to map Java classes to database tables. Hibernate itself takes care of this mapping using ...
... database. So with JDBC, developer has to write code to map an object model's data representation to a relational data model and its corresponding database schema. Hibernate is flexible and powerful ORM solution to map Java classes to database tables. Hibernate itself takes care of this mapping using ...
Database Query Monitor Settings
... Monitors must be created in a group in the monitor tree. The Database Connection Tool is available when configuring this monitor to test and verify connectivity between SiteScope and an external ODBC or JDBC compatible database (provided you are an administrator in SiteScope, or a user granted Use m ...
... Monitors must be created in a group in the monitor tree. The Database Connection Tool is available when configuring this monitor to test and verify connectivity between SiteScope and an external ODBC or JDBC compatible database (provided you are an administrator in SiteScope, or a user granted Use m ...
Download Citation for Prof OOI Beng Chin
... Beng Chin is also a leading expert on content-based multimedia retrieval and spatio-temporal database management. In multimedia and spatio-temporal database systems, a key challenge is approximate search---for example, given an object’s current location, how to efficient retrieve other objects near ...
... Beng Chin is also a leading expert on content-based multimedia retrieval and spatio-temporal database management. In multimedia and spatio-temporal database systems, a key challenge is approximate search---for example, given an object’s current location, how to efficient retrieve other objects near ...
Database Users and Administrators
... Pascal etc. These queries are converted into object code to communicate with the database. For example, writing a C program to generate the report of employees who are working in particular department will involve a query to fetch the data from database. It will include a embedded SQL query in the C ...
... Pascal etc. These queries are converted into object code to communicate with the database. For example, writing a C program to generate the report of employees who are working in particular department will involve a query to fetch the data from database. It will include a embedded SQL query in the C ...
Chapter 22 Distributed DBMSs - Concepts and Design Transparencies
... Centralized Consists of single database and DBMS stored at one site with users distributed across the network. Partitioned Database partitioned into disjoint fragments, each fragment assigned to one site. Complete Replication Consists of maintaining complete copy of database at each site. Selective ...
... Centralized Consists of single database and DBMS stored at one site with users distributed across the network. Partitioned Database partitioned into disjoint fragments, each fragment assigned to one site. Complete Replication Consists of maintaining complete copy of database at each site. Selective ...
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.