Is the difference between DDL and DML commands in databases, and how is it determined?

DDL (Data Definition Language) and DML (Data Manipulation Language) are different categories of SQL commands, distinguished by their purpose:

• DDL is used for defining and modifying the structure of a database: creating, altering, and dropping tables, indexes, schemas, etc. Examples: CREATE, ALTER, DROP.
• DML is intended for working with data within tables: inserting, updating, deleting, and selecting data. Examples: INSERT, UPDATE, DELETE, SELECT.

The difference is that DDL affects the structure of the database, while DML affects the content of the tables.

In Android, when working with SQLite, these commands are used similarly, for example, creating tables with DDL, and adding or modifying data with DML.