CREATE VIEW
From SQLZoo
The table games
shows the year and the city hosting the Olympic Games
yr | city |
---|---|
2004 | Athens |
2008 | Beijing |
schema:scott
DROP TABLE games;
DROP VIEW og
CREATE TABLE games(
yr INTEGER PRIMARY KEY,
city VARCHAR(20));
INSERT INTO games VALUES (2000,'Sydney');
INSERT INTO games VALUES (2004,'Athens');
INSERT INTO games VALUES (2008,'Beijing');
INSERT INTO games VALUES (2012,'London');
The CREATE VIEW names a SELECT query. That query may be used as if it were a table in many contexts. In this example the VIEW old_games shows those games before 2006.
CREATE VIEW og AS
SELECT yr,city FROM scott.games
WHERE yr<2006;
SELECT * FROM og;
CREATE VIEW og AS
SELECT yr,city FROM games
WHERE yr<2006;
SELECT * FROM og;
See also