ALTER USER 
MAPPING(7)						   SQL Commands 					     ALTER USER MAPPING(7)

NAME

       ALTER USER MAPPING - change the definition of a user mapping

SYNOPSIS

       ALTER USER MAPPING FOR { username | USER | CURRENT_USER | PUBLIC }
	   SERVER servername
	   OPTIONS ( [ ADD | SET | DROP ] option ['value'] [, ... ] )

DESCRIPTION

       ALTER USER MAPPING changes the definition of a user mapping.

       The  owner of a foreign server can alter user mappings for that server for any user. Also, a user can alter a user mapping for his own user
       name if USAGE privilege on the server has been granted to the user.

PARAMETERS

       username
	      User name of the mapping. CURRENT_USER and USER match the name of the current user. PUBLIC is used to match all present  and  future
	      user names in the system.

       servername
	      Server name of the user mapping.

       OPTIONS ( [ ADD | SET | DROP ] option ['value'] [, ... ] )
	      Change  options  for  the  user  mapping.  The new options override any previously specified options. ADD, SET, and DROP specify the
	      action to be performed. ADD is assumed if no operation is explicitly specified. Option names must be unique; options are also  vali-
	      dated by the server's foreign-data wrapper.

EXAMPLES

       Change the password for user mapping bob, server foo:

       ALTER USER MAPPING FOR bob SERVER foo OPTIONS (user 'bob', password 'public');

COMPATIBILITY

       ALTER  USER  MAPPING  conforms to ISO/IEC 9075-9 (SQL/MED). There is a subtle syntax issue: The standard omits the FOR key word. Since both
       CREATE USER MAPPING and DROP USER MAPPING use FOR in analogous positions, and IBM DB2 (being the other major SQL/MED  implementation)  also
       requires it for ALTER USER MAPPING, PostgreSQL diverges from the standard here in the interest of consistency and interoperability.

SEE ALSO

       CREATE USER MAPPING [create_user_mapping(7)], DROP USER MAPPING [drop_user_mapping(7)]

SQL - Language Statements					    2010-05-14						     ALTER USER MAPPING(7)