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The parameter view-name is the name of the view that is to be deleted. Deleting PostgreSQL ViewsДЄnytime you need to delete a PostgreSQL view. This has been achieved using a JOIN statement. The view has been changed, and now we have two columns from two different tables. Let us now query the view to see its contents:

#Pgadmin 4 increase font size update

The following query will help us update the view Price_View2:

Let us demonstrate this by updating the view named Price_View2. This is done using the CREATE OR REPLACE VIEW statement. The definition of a view can be changed without having to drop it. Let us query the view to see its contents: The view has been given the name Price_View2 and includes only the price column of the Price table. Let us create a view that included only one column of the Price table: Here, we can add only one column to the view. Let us query it to see its contents:Д®ven though the base table has 4 records, only 2 were added to the view. The view has been given the name Price_View. Only the records where the price is greater than 200 will be added to the view. The above command will create a view based on the SELECT statement. Let us create a view from the above table: The WHERE condition(s) are options, and they must be satisfied for any record to be added to the view. The view-name parameter is the name of the view that you need to create. If omitted and the view already exists, an error will be returned. The OR REPLACE parameter will replace the view if it already exists. To create a PostgreSQL view, we use the CREATE VIEW statement.

In this PostgreSQL Tutorial, you will learn the following: When creating a view, you just need to create a query then give it a name, making it a useful tool for wrapping complex and commonly used queries. The tables are referred to as base tables. A view can also be a representation of more than one table. A view can have all or some of the table columns. However, we can SELECT it as an ordinary table. This means that a view is not a real table.