Beginner

722. Views

Understand what SQL Views are and why they are used in database applications.

📘 Lesson 721 of 728 ⏱ 7 min 🎯 Intermediate

A View is a virtual table created from one or more SQL queries. It does not store data itself but displays data retrieved from the underlying tables whenever it is queried.

Views simplify complex queries, improve security by hiding sensitive columns, and provide a consistent interface for reporting and business intelligence.

Create a view that displays only IT employees instead of querying the Employees table repeatedly.

SQL 
SELECT *
FROM ITEmployees;

Views are used in reporting systems, dashboards, ERP software, banking applications, healthcare systems, HR portals, and business intelligence solutions.

  • A View is a virtual table.
  • It stores the SQL query, not the data.
  • Simplifies complex queries.
  • Improves data security.
  • Can combine multiple tables.
  • Makes reporting easier.
  • Can be queried like a normal table.
What is a SQL View?

A View is a virtual table created from a SQL query.

Does a View store actual data?

No. A standard View stores only the query definition and retrieves data from the underlying tables.

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