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  2. Data definition language - Wikipedia

    en.wikipedia.org/wiki/Data_definition_language

    Saving a ddl file in Oracle SQL Developer. In the context of SQL, data definition or data description language (DDL) is a syntax for creating and modifying database objects such as tables, indices, and users. DDL statements are similar to a computer programming language for defining data structures, especially database schemas.

  3. Oracle Rdb - Wikipedia

    en.wikipedia.org/wiki/Oracle_Rdb

    In 1994 DEC sold the Rdb division to Oracle Corporation where it was rebranded Oracle Rdb. As of 2020, Oracle is still actively developing Rdb, with over half of the codebase developed under Oracle's ownership. [4] Version 7.0 ran on OpenVMS for VAX and Alpha, version 7.1 on Alpha only, and versions 7.2 to 7.4 on Alpha and IA-64 (Itanium).

  4. Data control language - Wikipedia

    en.wikipedia.org/wiki/Data_Control_Language

    Analyze information on a table, index, or cluster; Establish auditing options; Add comments to the data dictionary; So Oracle Database DDL commands include the Grant and revoke privileges which is actually part of Data control Language in Microsoft SQL server. Syntax for grant and revoke in Oracle Database:

  5. Data query language - Wikipedia

    en.wikipedia.org/wiki/Data_query_language

    Data query language (DQL) is part of the base grouping of SQL sub-languages. These sub-languages are mainly categorized into four categories: a data query language (DQL), a data definition language (DDL), a data control language (DCL), and a data manipulation language (DML).

  6. Database schema - Wikipedia

    en.wikipedia.org/wiki/Database_schema

    However, Oracle databases store schema objects logically within a tablespace of the database. The data of each object is physically contained in one or more of the tablespace's datafiles . For some objects (such as tables, indexes, and clusters) a database administrator can specify how much disk space the Oracle RDBMS allocates for the object ...

  7. Oracle metadata - Wikipedia

    en.wikipedia.org/wiki/Oracle_metadata

    Oracle Database provides information about all of the tables, views, columns, and procedures in a database. This information about information is known as metadata. [1] It is stored in two locations: data dictionary tables (accessed via built-in views) and a metadata registry.

  8. Open Data Description Language - Wikipedia

    en.wikipedia.org/wiki/Open_Data_Description_Language

    The Open Data Description Language (OpenDDL) is a generic text-based language that is designed to store arbitrary data in a concise human-readable format.It can be used as a means for easily exchanging information among many programs or simply as a method for storing a program's data in an editable format.

  9. Oracle Database - Wikipedia

    en.wikipedia.org/wiki/Oracle_Database

    Oracle Database (commonly referred to as Oracle DBMS, Oracle Autonomous Database, or simply as Oracle) is a proprietary multi-model [4] database management system produced and marketed by Oracle Corporation. It is a database commonly used for running online transaction processing (OLTP), data warehousing (DW) and mixed (OLTP & DW) database ...