Database 如何将点（LANG、LAT）存储到PostGIS中的几何类型列中？

我在PostGIS中创建了一个表

itapp_cities

，用于存储城市数据。我添加了一个数据类型为“几何体”的列“位置”，用于存储城市的经度和纬度。当我运行以下

INSERT

查询时，我得到如下所示的错误

插入

查询：

INSERT INTO itapp_cities(city_id, city_name, city_code, state_id, location) 
  VALUES (DEFAULT,'Ada', 'ada-ok',37,POINT(34.774531000000003, -96.678344899999999)); 

CREATE TABLE itapp_cities
(
  city_id bigserial NOT NULL,
  city_name character varying(100) NOT NULL,
  city_code character varying(5) NOT NULL DEFAULT ''::character varying,
  state_id bigint NOT NULL,
  location geometry,
  CONSTRAINT itapp_cities_pkey PRIMARY KEY (city_id),
  CONSTRAINT fk_states FOREIGN KEY (city_id)
      REFERENCES itapp_states (id) MATCH SIMPLE
      ON UPDATE NO ACTION ON DELETE CASCADE
)

表格定义：

INSERT INTO itapp_cities(city_id, city_name, city_code, state_id, location) 
  VALUES (DEFAULT,'Ada', 'ada-ok',37,POINT(34.774531000000003, -96.678344899999999)); 

CREATE TABLE itapp_cities
(
  city_id bigserial NOT NULL,
  city_name character varying(100) NOT NULL,
  city_code character varying(5) NOT NULL DEFAULT ''::character varying,
  state_id bigint NOT NULL,
  location geometry,
  CONSTRAINT itapp_cities_pkey PRIMARY KEY (city_id),
  CONSTRAINT fk_states FOREIGN KEY (city_id)
      REFERENCES itapp_states (id) MATCH SIMPLE
      ON UPDATE NO ACTION ON DELETE CASCADE
)

错误：

INSERT INTO itapp_cities(city_id, city_name, city_code, state_id, location) 
  VALUES (DEFAULT,'Ada', 'ada-ok',37,POINT(34.774531000000003, -96.678344899999999)); 

CREATE TABLE itapp_cities
(
  city_id bigserial NOT NULL,
  city_name character varying(100) NOT NULL,
  city_code character varying(5) NOT NULL DEFAULT ''::character varying,
  state_id bigint NOT NULL,
  location geometry,
  CONSTRAINT itapp_cities_pkey PRIMARY KEY (city_id),
  CONSTRAINT fk_states FOREIGN KEY (city_id)
      REFERENCES itapp_states (id) MATCH SIMPLE
      ON UPDATE NO ACTION ON DELETE CASCADE
)

---

如何在此列中存储点值？我是PostGIS的新手，所以请原谅我这个愚蠢的问题

试试这个SQL，并将它与您的insert SQL查询相匹配

    INSERT INTO itapp_cities(city_id, city_name, slug, state_id, location) 
  VALUES (DEFAULT,'Ada', 'ada-ok',37,st_GeomFromText('POINT(34.774531000000003 -96.678344899999999)', 312));

有关更多详细信息，请参阅此

您可以使用该功能并设置：

或者，在输入文字值时，将字符串表示形式输入到：

有关dba.SE的回答，包括更多详细信息和链接：

---

根据博士后的文档，您最初的插入非常接近。只需在点表达式周围加上'

INSERT INTO itapp_cities(city_id, city_name, city_code, state_id, location) 
  VALUES (DEFAULT,'Ada', 'ada-ok',37,'POINT(34.774531000000003, -96.678344899999999)');