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Data Definition Language (DDL) Definition - What does Data Definition Language (DDL) mean? A data definition language (DDL) is a computer language used to create and modify the structure of database objects in a database.What is DDL in DBMS?
A data definition language (DDL) is a computer language used to create and modify the structure of database objects in a database. These database objects include views, schemas, tables, indexes, etc.What is DDL (data description language)?
This term is also known as data description language in some contexts, as it describes the fields and records in a database table. The present database industry incorporates DDL into any formal language describing data. However, it is considered to be a subset of SQL (Structured Query Language).What is the difference between DDL and DML commands?
Unlike data manipulation language (DML) commands that are used for data modification purposes, DDL commands are used for altering the database structure such as creating new tables or objects along with all their attributes (data type, table name, etc.). Commonly used DDL in SQL querying are CREATE, ALTER, DROP, and TRUNCATE.