A smart key is a key with digital or information features that can facilitate more functionality than just unlocking a physical or digital lock system. With the emergence of new technologies that can use radio frequency (RF) signals and convert them to digital information, the use of smart keys has become more widespread in many industries,...
An object relational database management system (ORDBMS) is a database management system with that is similar to a relational database, except that it has an object-oriented database model. This system supports objects, classes and inheritance in database schemas and query language.
Object relational database management systems provide a middle ground between relational and object-oriented databases. In an ORDBMS, data is manipulated using queries in a query language. These systems bridge the gap between conceptual data modeling techniques such as entity relationship diagrams and object relational mapping using classes and inheritance. ORDBMSs also support data model extensions with custom data types and methods. This allows developers to raise the abstraction levels at which problem domains are viewed.
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