In this article, you will learn how to drop a view in MySQL.
Dropping a view in MySQL
In MySQL, a view is a virtual table that represents the result set of a SELECT query. Sometimes, we may want to remove a view from the database due to various reasons such as a change in business requirements or to free up database space.
The syntax to drop a view in MySQL is as follows:
DROP VIEW [IF EXISTS] view_name;
Here, IF EXISTS is an optional clause that checks whether the view exists before dropping it. If the view exists, then it is dropped, else no action is taken. The view_name is the name of the view that needs to be dropped.
Let’s say we have created a view named “customer_orders” using the following SQL query:
CREATE VIEW customer_orders AS SELECT customer_name, order_id, order_date, amount FROM customers INNER JOIN orders ON customers.customer_id = orders.customer_id;
To drop this view, we can use the following SQL query:
DROP VIEW IF EXISTS customer_orders;
Here, the IF EXISTS clause checks whether the view named “customer_orders” exists. If it exists, then it will be dropped.
Note: Dropping a view does not affect the original table(s) used to create the view. If you drop a view that is based on one or more tables, the underlying tables are not affected.