niniinnini commented on issue #31628:
URL: https://github.com/apache/superset/issues/31628#issuecomment-2563405107

   > Hello @niniinnini, I'm here to assist you with any bugs, questions, or 
contributions you have for Superset. Let me know how I can help!
   > 
   > The 422 Unprocessable Entity error when querying datasets in Superset can 
be caused by several issues related to dataset validation and processing. Here 
are some potential causes:
   > 
   > 1. **DatasetInvalidError**: This occurs when the dataset is considered 
invalid due to failing custom validations. Specific validations that can 
trigger this error include issues like non-existent databases, attempts to 
change databases during updates, duplicate columns or metrics, and invalid 
owners 
[[1]](https://github.com/apache/superset/blob/master/superset/commands/dataset/exceptions.py).
   > 2. **DatasetCreateFailedError**: This error happens when there is a 
failure in creating the dataset, possibly due to incorrect configurations or 
missing required fields 
[[2]](https://github.com/apache/superset/blob/master/superset/datasets/api.py).
   > 3. **DatasetUpdateFailedError**: This occurs when there is a failure in 
updating the dataset, which might be due to invalid data or constraints 
[[2]](https://github.com/apache/superset/blob/master/superset/datasets/api.py).
   > 
   > To resolve this issue, you should check the dataset configurations and 
ensure that all required fields are correctly set. Additionally, verify that 
the database and table names are correct and that there are no duplicate 
columns or metrics. If the error persists, reviewing the server logs for more 
detailed error messages might provide further insights into the specific 
validation that is failing.
   > 
   > _To continue talking to [Dosu](https://dosu.dev), mention @dosu._
   > 
   > Help Dosu learn! Give it feedback: [Great 
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![image](https://github.com/user-attachments/assets/2b70bd64-7439-4928-96a7-7bd848b8d847)
   连接了Mysql数据库,但是在创建数据集的时候找不到对应的表


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