Question

我必须在mysql触发器中操纵json对象。为此我已经安装了common_schema。

它安装成功并且直接查询它证明了适当的结果。但是当在mysql触发器中使用相同的查询时，它会抛出错误。 ERROR 1327（42000）：未声明的变量：common_schema。

请协助。

下面是使用mysql common_schema ::

的查询

  SELECT common_schema.extract_json_value(api.response,'/GUID') AS GUID,
       common_schema.extract_json_value(api.response,'/SUBMITDATE') AS SUBMITDATE,
       common_schema.extract_json_value(api.response,'/ID') AS subscriber_id
FROM api_response api
ORDER BY id DESC LIMIT 10;

+--------------------------------------+---------------------+---------------+
| GUID                                 | SUBMITDATE          | subscriber_id |
+--------------------------------------+---------------------+---------------+
| kf73e550098321f4610003o61mKELLTON2A2 | 2015-07-03 14:55:00 | 173           |
| kf73e550097721f461000cofneKELLTON2A2 | 2015-07-03 14:55:00 | 178           |
| kf73e550096421f461000iqhtfKELLTON2A2 | 2015-07-03 14:55:00 | 175           |
| kf73e550095121f4610008kjwiKELLTON2A2 | 2015-07-03 14:55:00 | 176           |
| kf73e550093621f461000rxq1lKELLTON2A2 | 2015-07-03 14:55:00 | 174           |
| kf73e550092421f461000zh2njKELLTON2A2 | 2015-07-03 14:55:00 | 177           |
| kf73e550091021f461000csbi4KELLTON2A2 | 2015-07-03 14:55:00 | 122           |
| kf73e550089621f461000vqvrdKELLTON2A2 | 2015-07-03 14:55:00 | 121           |
| kf73e550088321f461000sy3dyKELLTON2A2 | 2015-07-03 14:55:00 | 105           |
| kf73e550086821f461000x6bqoKELLTON2A2 | 2015-07-03 14:55:00 | 109           |
+--------------------------------------+---------------------+---------------+

10行（0.06秒）

这是我的触发器::

`为每个行插入api_response后创建TRIGGER response_in_sms_reports

BEGIN

- 变量声明DECLARE subscriber_id INT; DECLARE GUID varchar（250）; DECLARE SUBMITDATE datetime; DECLARE is_error INT DEFAULT 1; DECLARE error_code varchar（100）; - 触发代码 - 查找执行INSERT到表的人的用户名，将common_schema.extract_json_value（api.response，'/ ID'）选择到subscriber_id，common_schema.extract_json_value（api.response，'/ GUID'）到GUID，common_schema。 extract_json_value（api.response，'/ SUBMITDATE'）到SUBMITDATE，common_schema.extract_json_value（api.response，'/ ERROR'）到is_error，common_schema.extract_json_value（api.response，'/ ERROR / CODE'）到error_code 来自api_response api

- 将记录插入审计表INSERT INTO sms_reports（guid，list_subscriber_id，submit_date，error，error_code）VALUES（GUID，subscriber_id，SUBMITDATE，is_error，error_code）;

END;`

这导致ERROR 1327（42000）：未声明的变量：common_schema

如何在mysql内部使用common_schema触发器？

0 个答案: