A view is a virtual table based on the result set of a SQL statement. It derives its fields from a SELECT statement. You can do anything with a HEAVY.AI view query that you can do in a non-view HEAVY.AI query.
Nomenclature Constraints
View object names must use the NAME format, described in regex notation as:
[A-Za-z_][A-Za-z0-9\$_]*
CREATE VIEW
Creates a view based on a SQL statement.
Example
CREATE VIEW view_movies
AS SELECT movies.movieId, movies.title, movies.genres, avg(ratings.rating)
FROM ratings
JOIN movies on ratings.movieId=movies.movieId
GROUP BY movies.title, movies.movieId, movies.genres;
You can describe the view as you would a table.
\d view_movies
VIEW defined AS: SELECT movies.movieId, movies.title, movies.genres,
avg(ratings.rating) FROM ratings JOIN movies ON ratings.movieId=movies.movieId
GROUP BY movies.title, movies.movieId, movies.genres
Column types:
movieId INTEGER,
title TEXT ENCODING DICT(32),
genres TEXT ENCODING DICT(32),
EXPR$3 DOUBLE
You can query the view as you would a table.
SELECT title, EXPR$3 from view_movies where movieId=260;
Star Wars: Episode IV - A New Hope (1977)|4.048937
DROP VIEW
Removes a view created by the CREATE VIEW statement. The view definition is removed from the database schema, but no actual data in the underlying base tables is modified.