What SQL command is used to define a new view in a database?

The SQL command used to define a new view in a database is CREATE VIEW. This command allows you to create a virtual table, which is based on the result of a query. Once a view is created, it can be used in subsequent queries as if it were a regular table, simplifying complex queries and providing a way to encapsulate logic within the database.

Using CREATE VIEW, you specify the name of the view and the query that defines the data included in that view. This promotes code reusability and consistency, as you can define a complex join or filter logic once and use it multiple times without rewriting the SQL code.

The other options do not correspond with standard SQL syntax for creating a view. DEFINE VIEW, NEW VIEW, and VIEW CREATE are not recognized SQL statements for defining a new view, which is why they are not the correct answer.