Q: Why cannot I find the table in the oracle database corresponding to the dataset in the oracle datasource?

A: The possible reason might be that oracle user A corresponding to the datasource has logged into sql developer and its connection name is another oracle user B. The essence is that user B is the agent of user A, and the table corresponding to the dataset can be found under user B. If you want to see the table under user A, you can log in with the sys user, and find the corresponding data table under user under the “Other users” node.