Sql Views — Free Sql Tutorial

TL;DR: Learn Sql Views in Sql with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.

Sql Views in Sql

A VIEW is a saved SQL query that behaves like a virtual table. You can SELECT from a view just like a real table, but the data is not stored — it is re-computed from the underlying tables each time.

Views simplify complex queries: instead of repeating a long JOIN every time, create a view once and query the view with a simple SELECT.

Views also improve security: expose only certain columns to users without giving them access to the full table.

CREATE VIEW view_name AS SELECT ...; Use DROP VIEW view_name; to remove it. CREATE OR REPLACE VIEW updates an existing view.

-- Create a view
CREATE VIEW view_name AS
  SELECT col1, col2, ...
  FROM table
  WHERE condition;

-- Use the view like a table
SELECT * FROM view_name WHERE ...;

-- Drop a view
DROP VIEW view_name;

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