MySQL 全部数据合并json

2019独角兽企业重金招聘Python工程师标准>>>

SELECT CONCAT('{"pid"',':"',province.provinceID,'","name":"',province.provinceName, '","city":[',GROUP_CONCAT('{"cid"',':"',city.cityID,'","name":"',city.cityName,'"}'),']},' ) as aa
FROM tbl_code_province province,tbl_code_city city WHERE city.provinceID = province.provinceID  
group by province.provinceID 

 

 

查出来后

最开头加上[

结尾去掉逗号，加上]

转载于:https://my.oschina.net/fanhoucheng/blog/805931