Oracle does not have the permission to edit the view. Today, an operation is as follows: delete all tables under the zzb tablespace, and then import new tables and data, after viewing the view in another tablespace, most of the results are cross-handed. I declare that the structure of the table I imported later is the same as that of the deleted table, however, the imported table may have more fields than the deleted table... After that, I made the effort to get it done. The operation is as follows: 1. open the graphical pl/SQL operation interface --------- console operation 2. click Security www.2cto.com 3. click User 4. click the user you are trying to report an error. 5. click system 6 on the right of the window and add the following permissions to the system: select any table unlimited tablespace 7. success, and then re-compile the user's attempt to report an error