I was working on a code example for my database class, got in a hurry, and changed a table name without dropping the original table. Oops!
Naturally, I got this error message.
LOB (administrator_photo) STORE AS admin_photo * ERROR at line 5: ORA-00955: name IS already used BY an existing object
The LOB segment name existed but why and where. It was in the table that I forgot to drop. This query find the latent table and column while illustrating the relationship (for my students and others) between an
SELECT TABLE_NAME, column_name FROM user_lobs WHERE segment_name = (SELECT object_name FROM user_objects WHERE object_name = UPPER('&object_name') AND object_type = 'LOB');
Now, I can grab it later because it’ll happen again. 😉 At Samy mentioned in his comment you also have the option of using
DBA_ views when you’re a DBA.