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Oracle Database 23ai: 23.4.0 On May 2, 2024, Oracle Database 23ai [10] was released on Oracle Cloud Infrastructure (OCI) as cloud services, including OCI Exadata Database Service, OCI Exadata Database Cloud@Customer, and OCI Base Database Service. It is also available in Always Free Autonomous Database.
Oracle RAC allows multiple computers to run Oracle RDBMS software simultaneously while accessing a single database, thus providing clustering. In a non-RAC Oracle database, a single instance accesses a single database. The database consists of a collection of data files, control files, and redo logs located on disk.
In the Oracle implementation, a 'database' is a set of files which contains the data while the 'instance' is a set of processes (and memory) through which a database is accessed. Informix supports multiple databases in a server instance like MySQL.
Oracle Application Server can utilize an "Oracle AS Infrastructure Database"—an Oracle database instance supporting the Oracle AS Metadata Repository and/or Oracle Identity Management. [5] OPMN - the Oracle Process Management and Notification server - monitors components of the Oracle Application Server. [6]
That need prompted MongoDB (NASDAQ: MDB) to introduce Atlas, a non-relational database that can store unstructured data types. However, Oracle responded by introducing its own non-relational database.
This is a comparison of object–relational database management systems (ORDBMSs). Each system has at least some features of an object–relational database ; they vary widely in their completeness and the approaches taken.
General purpose database that has high data processing speeds in main-memory alone. It comes with high-availability, replication and scalability features; three interfaces (including Direct Access Mode and Direct Access API Mode) as well as conventional client/server protocols such as TCP/IP and IPC for more complex database operations.
It monitors Oracle Database instances, Oracle Real Application Clusters, and Oracle Application Server Farms and Clusters. OEM Grid Control comes with a set of performance and health metrics that allow monitoring of technology components such as applications, application servers, databases, as well as the back-end components on which they rely ...