How to store (latitude, longitude, altitude) tuple in MySQL database?

Question

有办法来存储纬度和经度Point中MySQL数据库，但我怎么能存储（元组latitude ， longitude ， altitude在） MySQL数据库？

Answer 1

Use a POINT for the latitude and longitude, and a DECIMAL for the altitude:

CREATE TABLE Mountain (
  Location POINT NOT NULL,  -- Latitude/longitude
  Altitude DECIMAL(12, 2)   -- Altitude or height in meters or feet or furlongs if you prefer
) ENGINE=InnoDB;

or, just use three decimals - one for latitude, one for longitude, one for altitude:

CREATE TABLE Mountain (
  Latitude   DECIMAL(10, 7),
  Longitude  DECIMAL(10, 7),
  Altitude   DECIMAL(11, 1)
) ENGINE=InnoDB;