Enhance Data Clarity with Aliased Columns in a View

Create a View with Column Aliases

Write a PostgreSQL query to create a view that renames columns using aliases for clarity.

Solution:

-- Create a view with custom column names for better readability.
CREATE VIEW EmployeeAlias AS
SELECT employee_id AS id, name AS employee_name, department AS dept
FROM Employees;

Explanation:

• Purpose of the Query:
• The goal is to create a view that presents columns with more meaningful or shorter names.
• This demonstrates the use of column aliases in view definitions.
• Key Components:
• employee_id AS id, name AS employee_name, department AS dept : Renames the columns for the view.
• The SELECT statement defines the structure of the view.
• Real-World Application:
• Simplifies query writing and improves clarity in reporting systems.

Notes:

• Column aliases in views do not change the names in the underlying tables.

For more Practice: Solve these Related Problems:

• Write a PostgreSQL query to create a view that selects columns from the Customers table and aliases them to standardized names.
• Write a PostgreSQL query to create a view that simplifies complex expressions in the SELECT clause using column aliases.
• Write a PostgreSQL query to create a view that renames columns from a joined table to avoid naming conflicts.
• Write a PostgreSQL query to create a view that includes aliased columns along with a computed column for clarity.

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