mysql中取出json字段的小技巧

—---------------------------------------------------------------+
| id | data |
—---------------------------------------------------------------+
| 1 | {“Tel”: “132223232444”, “name”: “david”, “address”: “Beijing”} |
| 2 | {“Tel”: “13390989765”, “name”: “Mike”, “address”: “Guangzhou”} |
—---------------------------------------------------------------+

select json_extract('{"name":"Zhaim","tel":"13240133388"}',"$.tel");

select get_json_object(i.extra, '$.sale_currency');
select sum(get_json_object(i.extra, '$.sale_price') * i.count) as sale_price;

{ "selects" :{ "20071090" :{ "NN" : 41,
"LXFS1" : "12365",
"GH" : "20071090",
"RZZW" : "办公室主任",
"sxzym" : "园林植物与观赏园艺",
"ZC" : "副教授",
"XGW" : "行政管理后勤",
"XB" : "男",
"ZZMM" : "中共党员",
"ZWZC" : "高级职称",
"MZ" : "汉",
"CSRQ" : 307123200000,
"XL" : "硕士",
"selecTKEy" : "20071090",
"XM" : "张三",
"GZBM" : "办公室",
"PZGW" : "副教授三级岗位",
"XW" : "农学硕士" }}}

SELECT ZDLSXM->'$.selects' from VI_YXGR

 
SELECT CONCAT("{",substring_index(substring_index(ZDLSXM->'$.selects', '{', -1),"}",1),"}") from VI_YXGR

SELECT SE_ZDLSXM->'$.name' AS ZDLSXM from (
SELECT CONCAT("{",substring_index(substring_index(ZDLSXM->'$.selects', '{', -1),"}",1),"}") as SE_ZDLSXM  from VI_YXGR
) sss