儲存你的資料

將 SQL 應用於真實世界問題

Dmitriy (Dima) Gorenshteyn

Lead Data Scientist, Memorial Sloan Kettering Cancer Center

三種方式儲存資料

address 資料表的欄位

1) 建立新資料表

CREATE TABLE zip_distance (
    postal_code INT,
    distance FLOAT
);

2) 將資料插入資料表

INSERT INTO zip_distance (postal_code, distance)
VALUES
(53182, 3.4),                
(15540, 10.2),                
(67912, 1.9);


SELECT film_id, title
FROM film
WHERE rating = 'G';

CREATE TABLE family_films AS
SELECT film_id, title
FROM film
WHERE rating = 'G';

CREATE VIEW family_films AS
SELECT film_id, title
FROM film
WHERE rating = 'G';

將 SQL 應用於真實世界問題