Written by Oracle insiders, this indispensable guide distills an enormous amount of information about the Oracle Database into one compact volume. Ideal for novice and experienced DBAs, developers, managers, and users, Oracle Essentials walks you through technologies and features in Oracle’s product line, including its architecture, data structures, networking, concurrency, and tuning.Complete with illustrations and helpful hints, this fifth edition provides a valuable one-stop overview of Oracle Database 12c, including an introduction to Oracle and cloud computing. Oracle Essentials provides the conceptual background you need to understand how Oracle truly works.Topics include:A complete overview of Oracle databases and data stores, and Fusion Middleware products and featuresCore concepts and structures in Oracle’s architecture, including pluggable databasesOracle objects and the various datatypes Oracle supportsSystem and database management, including Oracle Enterprise Manager 12cSecurity options, basic auditing capabilities, and options for meeting compliance needsPerformance characteristics of disk, memory, and CPU tuningBasic principles of multiuser concurrencyOracle’s online transaction processing (OLTP)Data warehouses, Big Data, and Oracle’s business intelligence toolsBackup and recovery, and high availability and failover solutions