数据库中查询json 样式的值的sql语句

参考:http://www.lnmp.cn/mysql-57-new-features-json.html

方式一: 可以查到json中的Key:value

SELECT * FROM EDI.edi_history WHERE JSON_CONTAINS(response_summary, json_array(json_object("orderNo","")))
and JSON_CONTAINS(response_summary,  json_array(json_object("courierCompanyCode","Air21")))

and JSON_CONTAINS(response_summary,  json_array(json_object("dataSource", "EDI_AFTERSHIP")))

and JSON_CONTAINS(response_summary,  json_array(json_object("courierBillNo","")))

方式2:   仅仅通过包含:

select * from EDI.edi_history  where json_contains(response_summary, '{"dest_stn":"PRQ"}')

只更新部分值:

UPDATE EDI.edi_history SET response_summary = JSON_REPLACE(response_summary, '$.result', 'php') WHERE id = ;

创建表

CREATE TABLE t_json(id INT PRIMARY KEY, NAME VARCHAR(20) , info  JSON);

 

插入记录

INSERT INTO t_json(id,sname,info) VALUES(1 ,'test','{"time":"2017-01-01 13:00:00","ip":"192.168.1.1","result":"fail"}');

INSERT INTO t_json(id,sname,info)  VALUES(2 ,'my',JSON_OBJECT("time",NOW(),'ip','192.168.1.1','result','fail'));

 

查询IP键

SELECT sname,JSON_EXTRACT(info,'$.ip') FROM t_json;

查询有多少个键

SELECT id,json_keys(info) AS "keys" FROM t_json;

 

 

删除键

UPDATE t_json SET info = json_remove(info,'$.ip');

增加键

UPDATE t_json SET info = json_set(info,'$.ip','192.168.1.1');

变更值

UPDATE t_json SET info = json_set(info,'$.ip','192.168.1.2');