mysql查询json字段

 

建表语句

Create Table

CREATE TABLE `test` (   `id` int(10) ,   `user` json DEFAULT NULL COMMENT '用户信息',   PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=6 DEFAULT CHARSET=utf8

 

插入数据

需要注意的是，json数据外面需要单引号来区别

INSERT INTO test (id,USER) VALUES(1,'{"name": "tom", "age": 18, "money": 3000}');
INSERT INTO test (id,USER) VALUES(2,'{"name": "jack", "age": 20, "money": 100}');
INSERT INTO test (id,USER) VALUES(3,'{"name": "tony", "age": 21, "money": 100}');
INSERT INTO test (id,USER) VALUES(4,'{"name": "danny", "age": 21, "money": 20}');
INSERT INTO test (id,USER) VALUES(5,'{"name": "janny", "age": 23, "money": 20}');

表数据如下

查询语句

SELECT  id,JSON_EXTRACT(USER,'$.name')FROM test;

下面是查询结果