How do I create a view from view?

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You can certainly have a view that's built on top of another view: create table my_table (id number, name varchar2(20), .is it possible to create a view from another view?How does it work a view from another view in SQL?Creating a VIEW in SQL-ServerHow expensive is creating a database view?Другие результаты с сайта stackoverflow.com

Can I create a view from a view?

create or replace view my_view_1 as select id, name from my_table; view MY_VIEW_1 created. create or replace view my_view_2 as select mv1.id, mv1.name, mt. address from my_view_1 mv1 join my_table mt on mt.id = mv1.id; view MY_VIEW_2 created.

Can we CREATE VIEW from view in Oracle?

The syntax for the CREATE VIEW Statement in Oracle/PLSQL is: CREATE VIEW view_name AS SELECT columns FROM tables [WHERE conditions]; view_name. The name of the Oracle VIEW that you wish to create.

Can you have a view within a view?

The pure fact of querying a view from within a view does not have any negative performance implications. It is not different from querying a table from within a view.

How do I create a view from another view in MySQL?

The basic syntax for creating a view in MySQL is as follows: CREATE VIEW [db_name.] view_name [(column_list)] AS select-statement; [db_name.] is the name of the database where your view will be created; if not specified, the view will be created in the current database.

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