Example 1 The following example shows how to enter a new unique_identifier value using RMU/ALTER. $ RMU/ALTER MF_PERSONNEL %RMU-I-ATTACH, now altering database "DEVICE:[DIRECTORY]MF_PERSONNEL.RDB;1" DEPOSIT ROOT UNIQUE_IDENTIFIER = NEW (marked) Root file unique identifier is: "22-OCT-2010 13:49:31.72" (00AA55786ACFB115) COMMIT EXIT Example 2 The following example shows that RMU/ALTER is invoked specifying the database MF_PERSONNEL.RDB. The user then displays the current Unique Identifier value in the database root, creates a new Unique Identifier value in the database root, displays the new Unique Identifier in the root, and finally specifies "commit" to write the new Unique Identifier value to the database root file and ALL database storage area files. The display messages designate the pending new Unique Identifier value as "(marked)" until the user either executes "commit" to write out the new Unique Identifier value or "rollback" to restore the original Unique Identifier value. The user then verifies the database changes. $ RMU/ALTER MF_PERSONNEL %RMU-I-ATTACH, now altering database "DISK:[DIRECTORY]MF_PERSONNEL.RDB;1" DISPLAY ROOT UNIQUE_IDENTIFIER Root file unique identifier is: "22-OCT-2010 13:49:27.87" (00AA5578688428BB) DEPOSIT ROOT UNIQUE_IDENTIFIER = NEW (marked) Root file unique identifier is: "22-OCT-2010 13:49:28.34" (00AA557868CC9F7A) DISPLAY ROOT UNIQUE_IDENTIFIER (marked) Root file unique identifier is: "22-OCT-2010 13:49:28.34" (00AA557868CC9F7A) COMMIT EXIT $ RMU/VERIFY/ALL/NOLOG MF_PERSONNEL