1.MySQL 如何获取更新的数据?

选用“当mysql有数据新增时”这个触发动作，在字段配置中“选择唯一识别字段”和“排序字段”都要选取数据库中的系统更新字段。

2.MySQL出现错误码了怎么办？

如果遇到MySQL出现错误码时，点击下方链接，请参考【NDB Error Codes: by Type】相关文档

【NDB Error Codes: by Type】文档：https://dev.mysql.com/doc/ndbapi/en/ndb-error-codes.html

This section contains a number of error code lists, one for each type of NDB API error. The error types include the following:

No error

Application error

Scan application error

Configuration or application error (currently unused)

No data found

Constraint violation

Schema error

User defined error

Insufficient space

Temporary Resource error

Node Recovery error

Overload error

Timeout expired

Node shutdown

Internal temporary

Unknown result error

Unknown error code (currently unused)

Internal error

Function not implemented

The information in each list includes, for each error:

The NDB error code

The corresponding MySQL error code

The NDB classification code

See Section 2.4.4, “NDB Error Classifications”, for the meanings of these classification codes.

The text of the error message

Similar errors have been grouped together in each list. Each list is ordered alphabetically.

You can always obtain the latest error codes and information from the file storage/ndb/src/ndbapi/ndberror.cpp. (In previous releases of NDB Cluster, this file was named ndberror.c.)

These types are also shown in the error_status column of the ndbinfo.error_messages table.