Create or replace view

A view contains rows and columns, just like a real table. The fields in a view are fields from one or more real tables in the database. CREATE OR REPLACE VIEW. REPLACE VIEW statement creates a new view , or re- creates the existing view in Teradata. If the Oracle VIEW did not yet exist, the VIEW would merely be created for the first time.

Usually, you create a new view based on existing tables.

However, sometimes, you may want to. If you omit schema, then Oracle Database creates the view in your own schema. Specify the schema to contain the view. Diagramme schnell und einfach erstellen. Datenschutz wird bei uns groß geschrieben - Lucidchart ist GDPR zertifiziert.

Question: I know about create view statements, but I have never seen the create or replace force view statement. What does create or replace force view do, compared to a create view Answer: The create or replace force view is the same as create or replace for stored procedures. The force clause tells Oracle to replace the view of it.

To create a subview, you must have the UNDER ANY VIEW system privilege or the UNDER object privilege on the superview. Define a logical view on one or more tables or views. For columns used elsewhere in the SELECT statement you must have the SELECT privilege.

Create command is working fine. If the OR REPLACE clause is present, you must also have the DROP privilege for the view. Hallo an alle, ich habe folgende Anweisung geschrieben die prüfen soll ob ein View schon existiert und danach interagieren. REPLACE VIEW redefines an existing view or, if the specified view does not exist, creates a new view with the specified name.

Privileges that were granted directly on the original view are retained for the replace view definition. You can archive, copy, and restore individual view. The concept is simple as MySQL simply modifies the view if it already exists otherwise a new view would be created. This query will drop the view - if it already exists - and create a new one. PersonsView AS SELECT name, add.

Hi, I have the following view in MS SQL Server which is perfect. ProbleI run a script to create or alter tables. Similarly I need to check if the view by view name.

All underlying objects referenced by the view are not affected. Hi, i need to write a script that re- creates a table. The following example creates a view that contains all employees and their hire dates called EmployeeHireDate.

Permissions are granted to the view , but requirements are changed to select employees whose hire dates fall before a certain date. Then, ALTER VIEW is used to replace the view.