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  2. Data definition language - Wikipedia

    en.wikipedia.org/wiki/Data_definition_language

    Common examples of DDL statements include CREATE, ALTER, and DROP. If you see a .ddl file, that means the file contains a statement to create a table. Oracle SQL Developer contains the ability to export from an ERD generated with Data Modeler to either a .sql file or a .ddl file.

  3. Data control language - Wikipedia

    en.wikipedia.org/wiki/Data_Control_Language

    Data Definition Language (DDL) Statements; Data Manipulation Language (DML) Statements; Transaction Control Statements; Session Control Statements; System Control Statement; Embedded SQL Statements; For details refer Oracle-[3] TCL Data definition language (DDL) statements let you to perform these tasks: Create, alter, and drop schema objects

  4. Data manipulation language - Wikipedia

    en.wikipedia.org/wiki/Data_manipulation_language

    In SQL, the data manipulation language comprises the SQL-data change statements, [3] which modify stored data but not the schema or database objects. Manipulation of persistent database objects, e.g., tables or stored procedures, via the SQL schema statements, [3] rather than the data stored within them, is considered to be part of a separate data definition language (DDL).

  5. PL/SQL - Wikipedia

    en.wikipedia.org/wiki/PL/SQL

    If the trigger is created on a schema or the database, then the triggering event is composed of either DDL or database operation statements, and the trigger is called a system trigger. An INSTEAD OF trigger is either: A DML trigger created on a view or a system trigger defined on a CREATE statement.

  6. Data query language - Wikipedia

    en.wikipedia.org/wiki/Data_query_language

    DQL statements are used for performing queries on the data within schema objects. The purpose of DQL commands is to get the schema relation based on the query passed to it. Although often considered part of DML, the SQL SELECT statement is strictly speaking an example of DQL. When adding FROM or WHERE data manipulators to the SELECT statement ...

  7. SQL syntax - Wikipedia

    en.wikipedia.org/wiki/SQL_syntax

    The Data Definition Language (DDL) manages table and index structure. The most basic items of DDL are the CREATE , ALTER , RENAME , DROP and TRUNCATE statements: CREATE creates an object (a table, for example) in the database, e.g.:

  8. Bill Clinton Reveals the Name His Grandkids Call Him — and ...

    www.aol.com/bill-clinton-reveals-name-grandkids...

    Bill Clinton is one proud grandpa!. On Monday, Nov. 25, the former President of the United States, 78, appeared on an episode of Live with Kelly and Mark and spoke about how he and the former ...

  9. Truncate (SQL) - Wikipedia

    en.wikipedia.org/wiki/Truncate_(SQL)

    In SQL, the TRUNCATE TABLE statement is a Data Definition Language (DDL) operation that deletes all rows of a table without causing a triggered action. [1] The result of this operation quickly removes all data from a table, typically bypassing a number of integrity enforcing mechanisms.