SET ---+---> DICTIONARY ---> path-name ------+--->
        +---> EDIT ---+--> KEEP ---> n --+----+
        |             +--> NOKEEP -------+    |
        |             +--> PURGE --------+    |
        +---> OUTPUT ----+-----------------+--+
        |                +--> file-spec ---+  |
        +---> NOOUTPUT -----------------------+
        +---> VERIFY -------------------------+
        +---> NOVERIFY -----------------------+

Additional information available:

TRANSACTION

More Information

 SET DICTIONARY changes your default data dictionary dictionary
 directory to the path name you specify.

 SET EDIT controls the size of the editing buffer that you create
 when you use the EDIT statement with a wildcard as the argument.
 The default is 20.  SET EDIT NOKEEP is equivalent to SET EDIT
 KEEP 0.  If you use this form of the statement and you type EDIT
 or EDIT *, your editing buffer is empty.  SET EDIT PURGE retains
 the value of the KEEP parameter but purges all the previous
 statements.

 SET OUTPUT file-spec starts a log file of the SQL statements you
 issue and their results.  SET NOOUTPUT suspends writing to the
 output file.

 SET VERIFY displays indirect command files at your terminal as
 you run them.  SET NOVERIFY disables display or indirect command
 files.  NOVERIFY is the default setting.

 Type HELP SET_TRANSACTION at the SQL> prompt for help on SET
 TRANSACTION.