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Database System Concepts, 6 th Ed
... Wide acceptance, not only in database systems, but also in browsers, tools, and applications ...
... Wide acceptance, not only in database systems, but also in browsers, tools, and applications ...
Chapter 8 - Marshall University Personal Web Pages
... applications that will use them run faster. ...
... applications that will use them run faster. ...
Theory and Practice of Logic Programming Taming primary key
... all the redundant components of D cannot be polynomial because, otherwise, we would have a polynomial procedure for solving the original problem. Our goal is therefore to identify sufficient conditions to design a pruning mechanism that detects in polynomial time as many redundant conflicting component ...
... all the redundant components of D cannot be polynomial because, otherwise, we would have a polynomial procedure for solving the original problem. Our goal is therefore to identify sufficient conditions to design a pruning mechanism that detects in polynomial time as many redundant conflicting component ...
Module 2: Authoring Basic Reports
... Default Schema (Cont) Why is this useful? To create objects guaranteed to hit name lookups from every context, objects need not be created in DBO schema By having these contexts point to another schema as the default schema Allowing creation of objects in DBO schema could pose security risks throug ...
... Default Schema (Cont) Why is this useful? To create objects guaranteed to hit name lookups from every context, objects need not be created in DBO schema By having these contexts point to another schema as the default schema Allowing creation of objects in DBO schema could pose security risks throug ...
Visual Basic Database Access
... • Connection Object: Represent a connection to the database. • Command Object: The command object allows us to execute a SQL statement or a stored procedure. • DataReader: It is a read-only and forward-only pointer into a table to retrieve records. • DataSet Object: A DataSet object can hold several ...
... • Connection Object: Represent a connection to the database. • Command Object: The command object allows us to execute a SQL statement or a stored procedure. • DataReader: It is a read-only and forward-only pointer into a table to retrieve records. • DataSet Object: A DataSet object can hold several ...
Elmasri_6e_Ch11
... Overview of Object Database Concepts Object-Relational Features: Object Database Extensions to SQL The ODMG Object Model and the Object Definition Language ODL Object Database Conceptual Design The Object Query Language OQL Overview of the C++ Language Binding in the ODMG Standard Copyri ...
... Overview of Object Database Concepts Object-Relational Features: Object Database Extensions to SQL The ODMG Object Model and the Object Definition Language ODL Object Database Conceptual Design The Object Query Language OQL Overview of the C++ Language Binding in the ODMG Standard Copyri ...
lesson25
... • Disk resources are shared among all nodes, eliminating the need to keep a separate copy of any data for the resource synchronized on multiple nodes. ...
... • Disk resources are shared among all nodes, eliminating the need to keep a separate copy of any data for the resource synchronized on multiple nodes. ...
Object Relational Databases
... Overview of Object Database Concepts Object-Relational Features: Object Database Extensions to SQL The ODMG Object Model and the Object Definition Language ODL Object Database Conceptual Design The Object Query Language OQL Overview of the C++ Language Binding in the ODMG Standard Copyri ...
... Overview of Object Database Concepts Object-Relational Features: Object Database Extensions to SQL The ODMG Object Model and the Object Definition Language ODL Object Database Conceptual Design The Object Query Language OQL Overview of the C++ Language Binding in the ODMG Standard Copyri ...
Chapter 2. Some tools for building and querying annotated speech
... Chapter 2. Some tools for building and querying annotated speech databases 2.1 Getting started with existing speech databases Install databases This tutorial shows how to make the database first accessable to the Emu Database Tool. It shows how to download and install a database by the use of the Da ...
... Chapter 2. Some tools for building and querying annotated speech databases 2.1 Getting started with existing speech databases Install databases This tutorial shows how to make the database first accessable to the Emu Database Tool. It shows how to download and install a database by the use of the Da ...
driver
... ◦ provides a standard API for tool/database developers and makes it possible to write database applications using a pure Java API. ◦ The standard defined by Sun Microsystems, allowing individual providers to implement and extend the standard with their own JDBC drivers. ...
... ◦ provides a standard API for tool/database developers and makes it possible to write database applications using a pure Java API. ◦ The standard defined by Sun Microsystems, allowing individual providers to implement and extend the standard with their own JDBC drivers. ...
chapter02
... Field name: qualified by preceding it with the table name and a period Table’s primary key: field or fields that uniquely identify a given row within the table Query-By-Example (QBE): visual tool for manipulating relational databases ...
... Field name: qualified by preceding it with the table name and a period Table’s primary key: field or fields that uniquely identify a given row within the table Query-By-Example (QBE): visual tool for manipulating relational databases ...
Interface Servers - The RFID Ecosystem Project
... Beyond raw tag reads, the RFID Ecosystem will provide higher-level inferences about tag data. For applications, we provide an xml based API accessible over both a socket and web connection For users, a tag programming application is provided that allows users add tags to the system and alter metadat ...
... Beyond raw tag reads, the RFID Ecosystem will provide higher-level inferences about tag data. For applications, we provide an xml based API accessible over both a socket and web connection For users, a tag programming application is provided that allows users add tags to the system and alter metadat ...
Creating A Back-Up & Recovery Plan
... point where the database finishes. Backs up all tables, indexes, system tables and the database object in those tables ...
... point where the database finishes. Backs up all tables, indexes, system tables and the database object in those tables ...
Persistence in OODBs
... Explicit persistent objects therefore dictate what is made persistent however an object that is being promoted to persistent in turn may have its own references that must go through the same process, hence a cascading effect of promotion. Large objects with lots of references will produce a signific ...
... Explicit persistent objects therefore dictate what is made persistent however an object that is being promoted to persistent in turn may have its own references that must go through the same process, hence a cascading effect of promotion. Large objects with lots of references will produce a signific ...
Intuitive querying of e-Health data repositories - National e
... The interface restricts the choices available for [some body part] to those sites where squamous cell carcinoma can develop ...
... The interface restricts the choices available for [some body part] to those sites where squamous cell carcinoma can develop ...
Course Syllabus
... The goal of this class is to learn the concepts presented and be able to implement them. Homework is an important tool in understanding the concepts better and developing the necessary skills to use these concepts. We expect that for those of you who work in teams, that you will be equal partners in ...
... The goal of this class is to learn the concepts presented and be able to implement them. Homework is an important tool in understanding the concepts better and developing the necessary skills to use these concepts. We expect that for those of you who work in teams, that you will be equal partners in ...
ppt
... relational databases Implementor provides a mapping from objects to relations Objects are purely transient, no permanent object identity Objects can be retried from database System uses mapping to fetch relevant data from relations and construct objects Updated objects are stored back in d ...
... relational databases Implementor provides a mapping from objects to relations Objects are purely transient, no permanent object identity Objects can be retried from database System uses mapping to fetch relevant data from relations and construct objects Updated objects are stored back in d ...
Why XML in the Database
... Our Mission ... To supply a foundation for the distribution and integration of spatial data such that any application can use it To make Spatial Data An Integral Component of the Overall Information Technology Strategy of an Organization ...
... Our Mission ... To supply a foundation for the distribution and integration of spatial data such that any application can use it To make Spatial Data An Integral Component of the Overall Information Technology Strategy of an Organization ...
PHP Access to MySQL
... Result of fetch_array • Contains both numeric and index tags • Values are duplicated • Example: – Query: select surname, city from customers; – Row: ( 0=>'Walker', ‘surname’=>'Walker', 1=>'Kent', 'city'=>'Kent' ); ...
... Result of fetch_array • Contains both numeric and index tags • Values are duplicated • Example: – Query: select surname, city from customers; – Row: ( 0=>'Walker', ‘surname’=>'Walker', 1=>'Kent', 'city'=>'Kent' ); ...
National Missing and Unidentified Persons System
... The Unclaimed Persons Database allows medical examiners and coroners to publicize information about deceased persons who have been identified by name, but for whom no next of kin has been identified or located to claim the body. Search, Match, Solve. The NamUs databases are fully integrated to allow ...
... The Unclaimed Persons Database allows medical examiners and coroners to publicize information about deceased persons who have been identified by name, but for whom no next of kin has been identified or located to claim the body. Search, Match, Solve. The NamUs databases are fully integrated to allow ...
PPT
... Relations are Unordered Order of tuples is irrelevant (tuples may be stored in an arbitrary order) Relations are basically set! Example: the instructor relation with unordered tuples ...
... Relations are Unordered Order of tuples is irrelevant (tuples may be stored in an arbitrary order) Relations are basically set! Example: the instructor relation with unordered tuples ...
Select - DidaWiki
... Each object in the result set may contain a collection or array Select many help decompose the structure and flatten the result ...
... Each object in the result set may contain a collection or array Select many help decompose the structure and flatten the result ...
IsolationLevels_
... Only takes a schema stability lock and shared Database lock to prevent table definition changes while the query executes ...
... Only takes a schema stability lock and shared Database lock to prevent table definition changes while the query executes ...
CS257_Sec1_118_PPT2_Chapter_15.1
... – the query could include an ORDER BY clause. Requiring that a relation be sorted – Various algorithms for relational-algebra operations require one or both of their arguments to be sorted relation – physical-query-plan operator sort-scan takes a relation R and a specification of the attributes on w ...
... – the query could include an ORDER BY clause. Requiring that a relation be sorted – Various algorithms for relational-algebra operations require one or both of their arguments to be sorted relation – physical-query-plan operator sort-scan takes a relation R and a specification of the attributes on w ...
sccc_presentation_JCothran
... • Grants for research instrumentation which will be collecting observation data while lacking a data management/sharing component beyond basic file storage • Low-volume data(< 100,000 records per hour) in-situ observational platforms or system arrays (e.g. 1 to 1000 platforms collecting 10-20 observ ...
... • Grants for research instrumentation which will be collecting observation data while lacking a data management/sharing component beyond basic file storage • Low-volume data(< 100,000 records per hour) in-situ observational platforms or system arrays (e.g. 1 to 1000 platforms collecting 10-20 observ ...
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.