What command is used to change the structure of the table in DDL?

What command is used to change the structure of a table?

The SQL ALTER TABLE command is used to change the structure of an existing table. It helps to add or delete columns, create or destroy indexes, change the type of existing columns, or rename columns or the table itself. It can also be used to change the comment for the table and type of the table.

How do you change a DDL on a table?

The ALTER command is a DDL command to modify the structure of existing tables in the database by adding, modifying, renaming, or dropping columns and constraints. You can add columns, rename columns, delete columns, or change the data type of columns using the ALTER command.

What command is used to change the structure of the table in SQL?

The ALTER TABLE statement is used to add, delete, or modify columns in an existing table. The ALTER TABLE statement is also used to add and drop various constraints on an existing table.

Which DDL command is used to make some changes in data from the table?

Unlike data manipulation language (DML) commands, which are used to modify data, DDL commands are used to change the database structure, such as adding new tables or objects, as well as all of their properties (data type, table name, etc.). CREATE, ALTER, DROP, and TRUNCATE are the most often used DDL in SQL queries.