(no version information, might be only in CVS)
fbsql_change_user --
Change logged in user of the active connection
说明
resource
fbsql_change_user ( string user, string password [, string database [, resource link_identifier]] )
fbsql_change_user() changes the logged in user
of the current active connection, or the connection given by the
optional parameter link_identifier. If a database is specified,
this will default or current database after the user has been
changed. If the new user and password authorization fails, the
current connected user stays active.
fbsql_blob_size