Data Engineering Associate with Databricks Practice Exam

What is the correct syntax to create a view in SQL?

1. CREATE VIEW view AS SELECT * FROM table;

2. CREATE TEMP VIEW view AS SELECT * FROM table;

3. CREATE PERMANENT VIEW view AS SELECT * FROM table;

4. CREATE UI VIEW view SELECT * FROM table;

The correct answer is: CREATE VIEW view AS SELECT * FROM table;

Creating a view in SQL is a way to define a virtual table based on the result set of a select query. The correct syntax for this operation involves the use of the `CREATE VIEW` statement, followed by the name of the view and the query that defines it. The correct answer highlights the need to specify `CREATE VIEW`, indicating that a simple view is meant to be created. This syntax allows for the encapsulation of complex queries into a single name, making it easier to work with derived data without having to repeatedly write out the full logic. In contrast, while creating a temporary view (as presented in one of the options) is relevant in certain contexts, it is not the correct choice for defining a standard view meant for persistent use. Similarly, references to non-standard syntax, such as "PERMANENT VIEW" or "UI VIEW," do not align with recognized SQL conventions and thus would not serve as valid instructions for creating a view. The clarity and correctness of the standard `CREATE VIEW` syntax make it the valid option.