SQL> HELP SQLPLUS
SQLPLUS
-------
Starts SQL*Plus from the operating system prompt.
SQLPLUS [ [option] [logon] [start] ]
where option has the following syntax:
-H[ELP]
....
SQL> desc system.help
名前 NULL? 型
----------------------------------------- -------- ----------------------------
TOPIC NOT NULL VARCHAR2(50)
SEQ NOT NULL NUMBER
INFO VARCHAR2(80)