FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Schema data definition language (DDL) Enables the database administrator to define the schema components. DDL allowsadatabase administrator to define the database structure, schema, and subschema. Sub-Schema DDL, allows application programs to define the database components that will be used.

Detailed explanation-2: -DDL stands for Data Definition Language. DML stands for Data Manipulation Language. DCL stands for Data Control Language. It helps us to define the structure of the database. It helps us to manage the data.

Detailed explanation-3: -DDL (Data Definition Language): DDL commands are those that can be used to define the database schema. It consists of metadata of the database schema and also create and modify the structure of the various objects within the database.

Detailed explanation-4: -Data Definition Language (DDL) is a subset of SQL. It is a language for describing data and its relationships in a database. You can generate DDL in a script for database objects to: Keep a snapshot of the database structure. Set up a test system where the database acts like the production system but contains no data.

Detailed explanation-5: -Data definition language (DDL) Data definition language (DDL) creates the framework of the database by specifying the database schema, which is the structure that represents the organization of data. Its common uses include the creation and alteration of tables, files, indexes and columns within the database.