Structural changes that require a backup

The following structural changes require a backup if the DBA relies on hot backups:

• Creating a tablespace
• Dropping a tablespace
• Adding a datafile
• Renaming a datafile
• Adding a redo log group or member
• Dropping a redo log group or member
• Renaming a redo log group or member

How the backup must be taken depends on the archive log mode that the database is running in.

The controlfiles must be backed up:

alter database backup controlfile ...

A consistent backup must be made after the modification.