MySQL 5.7的Json操作
阿新 • • 發佈：2018-08-14
info result mysql 5.7 插入記錄 res 刪除 建表 arch 1.2 創建表
CREATE TABLE t_json(id INT PRIMARY KEY, NAME VARCHAR(20) , info JSON);
插入記錄
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‘));
查詢IP鍵SELECT sname,JSON_EXTRACT(info,‘$.ip‘) FROM t_json;
查詢有多少個鍵SELECT id,json_keys(info) AS "keys" FROM t_json;
刪除鍵UPDATE t_json SET info = json_remove(info,‘$.ip‘);
增加鍵UPDATE t_json SET info = json_set(info,‘$.ip‘,‘192.168.1.1‘);
變更值UPDATE t_json SET info = json_set(info,‘$.ip‘,‘192.168.1.2‘);
MySQL 5.7的Json操作