我正在将一些php脚本转换为mysql存储过程,并在结果集的数据上遇到了php的json_decode()的用法。它发生在存储为中间文本的字段中,utf8,utf8_unicode_ci
如何使用纯MySQL执行'json_decode()'过程?
从字段中采样数据:
{“ 93489”:{“ X1”:{“ net”:164,“ vat”:33.6},“ X2”:{“ net”:0,“ vat”:0}}}}
答案 0 :(得分:1)
您可以使用JSON_EXTRACT功能:
mysql> SELECT c, JSON_EXTRACT(c, "$.id"), g
> FROM jemp
> WHERE JSON_EXTRACT(c, "$.id") > 1
> ORDER BY JSON_EXTRACT(c, "$.name");
+-------------------------------+-----------+------+
| c | c->"$.id" | g |
+-------------------------------+-----------+------+
| {"id": "3", "name": "Barney"} | "3" | 3 |
| {"id": "4", "name": "Betty"} | "4" | 4 |
| {"id": "2", "name": "Wilma"} | "2" | 2 |
+-------------------------------+-----------+------+
3 rows in set (0.00 sec)