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SQL Views

Jonny
By Jonny
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A view in SQL is a virtual table based on the result of a SELECT query. It doesn’t store data but provides a way to simplify complex queries or enhance security.

Creating a View:

sql
CREATE VIEW view_name AS
SELECT column1, column2
FROM table_name
WHERE condition;

Using a View:

sql
SELECT * FROM view_name;

Benefits:

  1. Simplifies complex queries.
  2. Enhances security by restricting access to specific columns/rows.
  3. Improves reusability and readability.
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Updating a View:

sql
CREATE OR REPLACE VIEW view_name AS
SELECT column1, column3
FROM table_name;

Deleting a View:

sql
DROP VIEW view_name;
  • Note: Views are dynamic and reflect changes in the underlying tables.
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