Oracle Essentials Oracle Database 11g by Rick Greenwald Read Free Book Online

Services, Reports Services, Discoverer Viewer, Oracle Internet Directory, Oracle Application Interconnect, Wireless Option, and integration with Enterprise Service Bus (ESB). The Java Edition bundle includes an HTTP Server, OC4J, and TopLink with the Application Development Framework. We provide more details about Ora-
    cle Application Server in Chapter 15.
    Oracle Application Server Enterprise Edition has several available options including: BPEL Process Manager Option
    Oracle’s Business Process Execution Language (BPEL) tool is designed for Service-Oriented Architecture (SOA) environments and used for creating, managing, and deploying cross-application business processes. It supports standards such as BPEL, Web Services, XML, XSLT, XPATH, JMS, and JCA.
    Business Activity Monitoring (BAM)
    BAM is used for building real-time dashboards displaying key performance indicators (KPIs) populated with data from alerts monitored via the Web.
    BI Publisher
    A publishing and report layout tool used in generating high-fidelity reports from XML data.
    Service Registry
    The Oracle Service Registry enables publishing and advertising of services and provides a System of Record for SOA services.
    SOA Suite for Oracle Middleware
    The Suite bundles Oracle Fusion Middleware SOA offerings, including BPEL, BAM, business rules engine, Enterprise Service Bus (for messaging, routing, and transformations), Web Services Management (including a policy manager and monitoring dashboard), Web Services Registry, and applications and technology adapters.
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    Chapter 1: Introducing Oracle

    Communication and Mobility Server
    This bundle includes TimesTen, and also provides a SIP Servlet Container, enabler framework and enablers, voice access, and mobile access.
    WebCenter
    WebCenter is Oracle’s latest portal framework used for deploying portlets and Ajax-based components, especially in Web 2.0 environments. It includes discussion forums, presence server, instant message client, Wiki, VOIP call setup and teardown, SIP Servlet Container, Java and Web Service APIs, Click-2-dial integration, and voice-enabled soft client.
    Fusion Middleware Adapters
    Adapters include Applications, Transaction Processing Monitors, EDI, and others.
    The Fusion Middleware SOA Suite serves as the basis for Oracle’s Application Integration Architecture (AIA). AIA also includes prepackaged business objects and business processes known as Process Integration Packs and provides key underpin-nings used in integrating Oracle’s current and future applications.
    Distributed Database Features
    The Oracle database is well known for its ability to handle extremely large volumes of data and users. Oracle not only scales through deployment on increasingly powerful single platforms, but also can be deployed in distributed configurations. Oracle deployed on multiple platforms can be combined to act as a single logical distributed database.
    This section describes some of the basic ways that Oracle handles database interactions in a distributed database system.
    Distributed Queries and Transactions
    Data within an organization is often spread among multiple databases for reasons of both capacity and organizational responsibility. Users may want to query this distributed data or update it as if it existed within a single database.
    Oracle first introduced distributed databases in response to the requirements for accessing data on multiple platforms in the early 1980s. Distributed queries can retrieve data from multiple databases. Distributed transactions can insert, update, or delete data on distributed databases. Oracle’s two-phase commit mechanism, described in Chapter 13, guarantees that all the database servers that are part of a transaction will either commit or roll back the transaction. Background recovery processes can ensure database consistency in the event of system interruption during distributed transactions. Once the failed system comes back online, the same process will