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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  speci-
              fied. Option names must be unique; options are also validated 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         2014-02-17             ALTER USER MAPPING(7)