Aalborg Universitet 3XL Xiufeng, Liu; Thomsen, Christian; Pedersen, Torben Bach
... attributes a,b,c then the class table for C has at least the attributes a,b,c. Two attributes are needed for each instance of any class: an ID and a URI. To have these available in all tables, all class tables – directly or indirectly – inherit from a single root class table that represents the OWL ...
... attributes a,b,c then the class table for C has at least the attributes a,b,c. Two attributes are needed for each instance of any class: an ID and a URI. To have these available in all tables, all class tables – directly or indirectly – inherit from a single root class table that represents the OWL ...
Using SQL in an Application - Computer Science, Stony Brook
... language A conventional language (e.g., C, Java) that supplies control structures, computational capabilities, interaction with physical devices SQL: supplies ability to interact with database. Using the facilities of both: the application program can act as an intermediary between the user at a ter ...
... language A conventional language (e.g., C, Java) that supplies control structures, computational capabilities, interaction with physical devices SQL: supplies ability to interact with database. Using the facilities of both: the application program can act as an intermediary between the user at a ter ...
miBLAST: scalable evaluation of a batch of nucleotide sequence
... The join also determines a set of filtered database sequences that have potential matches for the queries. Then, miBLAST only examines these filtered database sequences to produce the actual alignments. In practice, only a few database sequences match a given query, and consequently miBLAST does not ...
... The join also determines a set of filtered database sequences that have potential matches for the queries. Then, miBLAST only examines these filtered database sequences to produce the actual alignments. In practice, only a few database sequences match a given query, and consequently miBLAST does not ...
Embedded SQL Guide for RM/Cobol
... There are certain terms used throughout this guide that may be new to some users. Below is a short explanation of some of these terms. Tables are similar to COBOL files. Rows are similar to COBOL records. Columns are similar to COBOL fields. Cursors are pointers into the rows of the result set of a ...
... There are certain terms used throughout this guide that may be new to some users. Below is a short explanation of some of these terms. Tables are similar to COBOL files. Rows are similar to COBOL records. Columns are similar to COBOL fields. Cursors are pointers into the rows of the result set of a ...
Query Optimization
... 1. Deconstruct conjunctive selections into a sequence of single selection operations (Equiv. rule 1.). 2. Move selection operations down the query tree for the earliest possible execution (Equiv. rules 2, 7a, 7b, 11). 3. Execute first those selection and join operations that will produce the smalles ...
... 1. Deconstruct conjunctive selections into a sequence of single selection operations (Equiv. rule 1.). 2. Move selection operations down the query tree for the earliest possible execution (Equiv. rules 2, 7a, 7b, 11). 3. Execute first those selection and join operations that will produce the smalles ...
Chapter 7: Relational Database Design
... Main difference is handling of duplicate values in join attribute — every pair with same value on join attribute must be matched ...
... Main difference is handling of duplicate values in join attribute — every pair with same value on join attribute must be matched ...
Oracle Database In-Memory with Oracle Database 12c Release 2
... With the introduction of Oracle Database In-Memory, a single database can now efficiently support mixed workloads, delivering optimal performance for transactions while simultaneously supporting real-time analytics and reporting. This is possible due to a unique "dual-format" architecture that enabl ...
... With the introduction of Oracle Database In-Memory, a single database can now efficiently support mixed workloads, delivering optimal performance for transactions while simultaneously supporting real-time analytics and reporting. This is possible due to a unique "dual-format" architecture that enabl ...
Supporting Temporal Text-Containment Queries
... History tells us that even though a large amount of index structures have been proposed for various purposes, database companies are very reluctant to make their systems more complex by incorporating them into their systems, and still mostly support the “traditional” structures, like B-trees and has ...
... History tells us that even though a large amount of index structures have been proposed for various purposes, database companies are very reluctant to make their systems more complex by incorporating them into their systems, and still mostly support the “traditional” structures, like B-trees and has ...
Document
... “A collection of tasks organized to accomplish some business process.” [D. Georgakopoulos] Types Human-oriented workflows Involve humans in performing the tasks. System support for collaboration and coordination; but no system-wide consistency definition ...
... “A collection of tasks organized to accomplish some business process.” [D. Georgakopoulos] Types Human-oriented workflows Involve humans in performing the tasks. System support for collaboration and coordination; but no system-wide consistency definition ...
Slide 1
... functions are completed. Data sharing systems can only have V9 members in this mode. ...
... functions are completed. Data sharing systems can only have V9 members in this mode. ...
Data Access Patterns
... citizens are dependant on ICT and software using OLTP databases, which provide the most reliable services for storing and retrieving the needed data • However, inproper access to database services results in erroneous or missing data causing difficulties, lost business, etc ...
... citizens are dependant on ICT and software using OLTP databases, which provide the most reliable services for storing and retrieving the needed data • However, inproper access to database services results in erroneous or missing data causing difficulties, lost business, etc ...
Oracle Database HA Technical Comparison
... offers a suite of capabilities that help eliminate or minimize planned downtime. With the Online Table Redefinition capability, Oracle database supports many data maintenance operations without disrupting database operations or users updating or accessing data. For example, database tables can be re ...
... offers a suite of capabilities that help eliminate or minimize planned downtime. With the Online Table Redefinition capability, Oracle database supports many data maintenance operations without disrupting database operations or users updating or accessing data. For example, database tables can be re ...
RN_T22v01_CERT_contribution
... the things found in databases: storage (XML documents), schemas (DTDs, XML schema languages), query languages (XQuery, XPath, XQL, XML-QL, QUILT, etc.), programming interfaces (SAX, DOM, JDOM), and so on. On the minus side, it lacks many of the things found in real databases: efficient storage, inde ...
... the things found in databases: storage (XML documents), schemas (DTDs, XML schema languages), query languages (XQuery, XPath, XQL, XML-QL, QUILT, etc.), programming interfaces (SAX, DOM, JDOM), and so on. On the minus side, it lacks many of the things found in real databases: efficient storage, inde ...
Distributed Transactions
... Execution of concurrent transactions controlled such that result the same as if executed serially Enforced by a concurrency control protocol Why is concurrent execution useful? ...
... Execution of concurrent transactions controlled such that result the same as if executed serially Enforced by a concurrency control protocol Why is concurrent execution useful? ...
Db2 driver for jdbc
... JDBC connectivity through a number of Java classes and interfaces that implement the JDBC specification. The implementation is. These are the databases tested with DbVisualizer. Use the links to show JDBC driver information, database specific support and specific DbVisualizer features. JDBC is the J ...
... JDBC connectivity through a number of Java classes and interfaces that implement the JDBC specification. The implementation is. These are the databases tested with DbVisualizer. Use the links to show JDBC driver information, database specific support and specific DbVisualizer features. JDBC is the J ...
Enhancing Oracle Database Performance with Flash Storage
... Intuitively, these types of I/O advantages, should translate into serious performance gains for Oracle database applications when conventional disks are replaced by F5100 devices. In this paper it is shown how, and under what circumstances, this will occur. The focus of the paper is on three Oracle ...
... Intuitively, these types of I/O advantages, should translate into serious performance gains for Oracle database applications when conventional disks are replaced by F5100 devices. In this paper it is shown how, and under what circumstances, this will occur. The focus of the paper is on three Oracle ...
Introduction to Eclipse, Unit Testing and JUnit - CS
... Database connection pooling enables an application to reuse an existing connection from a pool, instead of repeatedly establishing a new connection with the database. ADO .NET data providers provide transparent connection pooling, the exact mechanics of which vary for each provider. For example, usi ...
... Database connection pooling enables an application to reuse an existing connection from a pool, instead of repeatedly establishing a new connection with the database. ADO .NET data providers provide transparent connection pooling, the exact mechanics of which vary for each provider. For example, usi ...
A Spatio-temporal Database System Based on TimeDB and Oracle
... when there is the need to capture the evolution of facts over the time. To overcome this limitation, that is, to manage temporal aspects of facts in databases, Date [0] considers two distinct approaches: the semi-temporal approach, where the representation of historical data is done with timestamps, ...
... when there is the need to capture the evolution of facts over the time. To overcome this limitation, that is, to manage temporal aspects of facts in databases, Date [0] considers two distinct approaches: the semi-temporal approach, where the representation of historical data is done with timestamps, ...
Best ���® Transforming
... When you complete the process of scoping, you can transform your logical data model into a physical data model by selecting a menu option in IBM InfoSphere® Data Architect. IBM InfoSphere Data Architect is a data modeling tool that you can used to scope, transform, and customize the data models ...
... When you complete the process of scoping, you can transform your logical data model into a physical data model by selecting a menu option in IBM InfoSphere® Data Architect. IBM InfoSphere Data Architect is a data modeling tool that you can used to scope, transform, and customize the data models ...
Hibernate
... Want to change to a different database system (RDBMS) which has a considerably different implementation of SQL? Hand-written JDBC Code: Big problem! Rewrite of most embedded SQL. Hibernate: No problem! Change three lines in a Hibernate configuration file! Fed up manually creating table structures us ...
... Want to change to a different database system (RDBMS) which has a considerably different implementation of SQL? Hand-written JDBC Code: Big problem! Rewrite of most embedded SQL. Hibernate: No problem! Change three lines in a Hibernate configuration file! Fed up manually creating table structures us ...
Chapter13. Query Processing
... (primary index on nonkey, equality) Retrieve multiple records. Records will be on consecutive blocks Cost = HTi + number of blocks containing retrieved records ...
... (primary index on nonkey, equality) Retrieve multiple records. Records will be on consecutive blocks Cost = HTi + number of blocks containing retrieved records ...
CHAP017
... Client-Server Database Architectures Web Database Connectivity Architectures for Distributed Database ...
... Client-Server Database Architectures Web Database Connectivity Architectures for Distributed Database ...