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Relational calculus - The relational calculus refers to the two calculi, the tuple calculus and the domain calculus, that are part of the relational model for databases and that provide a declarative way to specify database queries. This in contrast to the relational algebra which is also part of the relational model but provides a more procedural way for specifying queries.
Object-Relational impedance mismatch - The Object-Relational Impedance Mismatch refers to a set of conceptual and technical difficulties which are often encountered when a relational database is being used by a program written in an object-oriented programming language or style; particularly when objects and/or class definitions are mapped in a straightforward way to database tables and/or relational schemata. This practice has been recommended ...
Object-relational mapping - Object-Relational mapping (or O/RM), is a programming technique that links databases to object-oriented language concepts, creating (in effect) a "virtual object database." There are both free and commercial packages available that perform object-relational mapping, although some programmers opt to code their own object-relational mapping for their systems.
Multiversion concurrency control - In computer science, in the field of databases, multiversion concurrency control (abbreviated MCC or MVCC) is a concurrency control method used in relational databases. A number of relational database management systems (such as Oracle and PostgreSQL) use it to control concurrent access to the database.
Object-Oriented Databases versus Object-Relational Databases - Gives a rough definition of relational, object-oriented and object-relational databases and compares these paradigms using criteria such as simplicity of use, scalability and maturity.
What Is an Oracle Relational Database? - ... records. Illustrates the layout of an Oracle database table. Explains how primary keys keep the records unique. Explains the concepts of a relational database and a foreign key. Describes the common use of lookup tables.
Mckoi SQL Database - Multi-client / multi-threaded SQL relational database management system written in Java. Includes JDBC 2.0 driver. [Open Source, GPL]
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Database Relational - Database Relational Database Design for Mere Mortals(tm) by Michael J. Hernandez, Praise for "Database Design for Mere Mortals(TM ... tools on the CD-ROM! This is a must-read for anyone who is even remotely interested in relational database design, from the individual who is called upon occasionally to create a useful tool at work, ...
Database Relational - Database Relational Database Design for Mere Mortals(tm) by Michael J. Hernandez, Praise for "Database Design for Mere Mortals(TM ... tools on the CD-ROM! This is a must-read for anyone who is even remotely interested in relational database design, from the individual who is called upon occasionally to create a useful tool at work, ...
Database - ... tools on the CD-ROM! This is a must-read for anyone who is even remotely interested in relational database design, from the individual who is called upon occasionally to create a useful tool at work, to ... Running Microsoft Access 2000 and coauthor of "SQL Queries for Mere Mortals "Whether you need to learn about relational database design in general, design a relational database, understand relational database terminology, or learn best practices for ...
Database Name - ... tools on the CD-ROM! This is a must-read for anyone who is even remotely interested in relational database design, from the individual who is called upon occasionally to create a useful tool at work, to ... Running Microsoft Access 2000 and coauthor of "SQL Queries for Mere Mortals "Whether you need to learn about relational database design in general, design a relational database, understand relational database terminology, or learn best practices for ...
Database Name - ... tools on the CD-ROM! This is a must-read for anyone who is even remotely interested in relational database design, from the individual who is called upon occasionally to create a useful tool at work, to ... Running Microsoft Access 2000 and coauthor of "SQL Queries for Mere Mortals "Whether you need to learn about relational database design in general, design a relational database, understand relational database terminology, or learn best practices for ...
Database - ... tools on the CD-ROM! This is a must-read for anyone who is even remotely interested in relational database design, from the individual who is called upon occasionally to create a useful tool at work, to ... Running Microsoft Access 2000 and coauthor of "SQL Queries for Mere Mortals "Whether you need to learn about relational database design in general, design a relational database, understand relational database terminology, or learn best practices for ...
Database Management System - ... detailed discussions of their projects and the relevance of their results to the future of active database systems. Relational database management system - A relational database management system (RDBMS) is a database management system (DBMS) that is based on the relational model ...
Database Design - ... tools on the CD-ROM! This is a must-read for anyone who is even remotely interested in relational database design, from the individual who is called upon occasionally to create a useful tool at work, to ... Running Microsoft Access 2000 and coauthor of "SQL Queries for Mere Mortals "Whether you need to learn about relational database design in general, design a relational database, understand relational database terminology, or learn best practices for ...
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