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  2. Nested set model - Wikipedia

    en.wikipedia.org/wiki/Nested_set_model

    The Nested Set model is appropriate where the tree element and one or two attributes are the only data, but is a poor choice when more complex relational data exists for the elements in the tree. Given an arbitrary starting depth for a category of 'Vehicles' and a child of 'Cars' with a child of 'Mercedes', a foreign key table relationship must ...

  3. Oracle RAC - Wikipedia

    en.wikipedia.org/wiki/Oracle_RAC

    In an Oracle RAC environment, 2 or more instances concurrently access a single database. This allows an application or user to connect to either computer and have access to a single coordinated set of data. The instances are connected with each other through an "Interconnect" which enables all the instances to be in sync in accessing the data.

  4. Comparison of data modeling tools - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_data...

    MySQL, MS SQL Server, PostgreSQL, Oracle, IBM Db2: Windows Visual Studio Extension 2005 Open ModelSphere: Grandite Enterprises - SMBs - personal Open source MS SQL Server, MySQL, PostgreSQL, Oracle, IBM Db2: Windows, macOS, Linux Standalone with Data, UML, and process modeling 2008 Oracle SQL Developer Data Modeler Oracle: Enterprises Proprietary

  5. Comparison of database administration tools - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_database...

    Navicat Data Modeler: PremiumSoft CyberTech Ltd. 2015-12-10 2.1 Proprietary: Yes Yes Yes Yes Yes Yes Yes Yes Yes Delphi Objective-C: Oracle Enterprise Manager: Oracle Corp. 2015-06-16 12.1.0.5 Proprietary: Yes No Yes Yes Yes Yes IBM Db2, Sybase, TimesTen: Java: Oracle SQL Developer: Oracle Corp. 2018-04-05 18.1.0.095.1630 Proprietary: Yes Yes ...

  6. Data access - Wikipedia

    en.wikipedia.org/wiki/Data_access

    Data access is a generic term referring to a process which has both an IT-specific meaning and other connotations involving access rights in a broader legal and/or political sense. In the former it typically refers to software and activities related to storing, retrieving, or acting on data housed in a database or other repository .

  7. Application performance management - Wikipedia

    en.wikipedia.org/wiki/Application_performance...

    The second set of performance metrics measures the computational resources used by the application for the load, indicating whether there is adequate capacity to support the load, as well as possible locations of a performance bottleneck. Measurement of these quantities establishes an empirical performance baseline for the application.

  8. Database schema - Wikipedia

    en.wikipedia.org/wiki/Database_schema

    In the context of Oracle Databases, a schema object is a logical data storage structure. [4] An Oracle database associates a separate schema with each database user. [5] A schema comprises a collection of schema objects. Examples of schema objects include: tables; views; sequences; synonyms; indexes; clusters; database links; snapshots ...

  9. Oracle Data Mining - Wikipedia

    en.wikipedia.org/wiki/Oracle_Data_Mining

    An independent interface also exists: the Spreadsheet Add-In for Predictive Analytics which enables access to the Oracle Data Mining Predictive Analytics PL/SQL package from Microsoft Excel. From version 11.2 of the Oracle database , Oracle Data Miner integrates with Oracle SQL Developer .