In this post, you’ll learn more about the Oracle ErrorORA-30045: No undo tablespace name specified with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-30045: No undo tablespace name specified
Reason for the Error ORA-30045: No undo tablespace name specified
If Create Database has the datafile clause, then undo tablespace name has to be specified, unless using OMF.
How to fix the Error ORA-30045: No undo tablespace name specified ?
You can fix this error in Oracle by following the below steps
Specify the undo tablespace name.