| Log in to SQL*Plus | 
SQLPLUS [ { username[/passward][@connect_identifier] | / }
          [ AS { SYSDBA | SYSOPER } ]
        | /NOLOG
        ]
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| List help topics available in SQL*Plus | 
HELP [ INDEX | topic ]
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| Execute host commands | 
HOST [ command ]
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| Show SQL*Plus system variables or environment settings | 
SHOW { ALL | ERRORS | USER | system_variable [, system_variable] ...}
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| Alter SQL*Plus system variables or environment settings | 
SET system_variable value
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| Start up a database | 
STARTUP [ PFILE = filename ]
  [ MOUNT [ dbname ] | NOMOUNT ] 
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| Connect to a database | 
CONNECT [{username[/password] [@connect_identifier] | /}
           [AS {SYSOPER | SYSDBA}
        |{proxy_user [ username ] 
           [/password] [@connect_identifier]}
        ]
Note: Brackets in boldface are part of the syntax and do not imply optionality. | 
| List column definitions for a table, view, or synonym, or specifications for a function or procedure | 
DESCRIBE [ schema. ] object
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| Edit contents of the SQL buffer or a file | 
EDIT [ filename [ .ext ] ]
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| Get a file and load its contents into the SQL buffer | 
GET filename [ .ext ] [ LIST | NOLLIST ]
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| Save contents of the SQL buffer to a file | 
SAVE filename [ .ext ] [ CREATE | REPLACE | APPEND ]
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| List contents of the SQL buffer | 
LIST [ n | n m | n LAST ]
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| Delete contents of the SQL buffer | 
DEL [ n | n m | n LAST ]
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| Add new lines following current line in the SQL buffer | 
INPUT [ text ]
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| Append text to end of current line in the SQL buffer | 
APPEND text
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| Find and replace first occurrence of a text string in current line of the SQL buffer | 
CHANGE sepchar old [ sepchar [ new [ sepchar ] ] ]
 
 sepchar can be any nonalphanumeric ASCII character such as "/" or "!"
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| Capture query results in a file and, optionally, send contents of file to default printer | 
SPOOL [ filename [ .ext ]  [ CREATE | REPLACE | APPEND | OFF | OUT ]
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| Run SQL*Plus statements stored in a file | 
@ { url | filename [ .ext ] } [ arg ... ]START { url | filename [ .ext ] } [ arg ... ]
 ext can be omitted if the filename extension is .sql
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| Execute commands stored in the SQL buffer | 
/
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| List and execute commands stored in the SQL buffer | 
RUN
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| Execute a single PL/SQL statement or run a stored procedure | 
EXECUTE statement
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| Disconnect from a database | 
DISCONNECT
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| Shut down a database | 
SHUTDOWN [ ABORT | IMMEDIATE | NORMAL ]
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| Log out of SQL*Plus | 
{ EXIT | QUIT }  [ SUCCESS | FAILURE | WARNING ]  [ COMMIT | ROLLBACK ]
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