1  –  alias-parameter

    Specifies a host language variable in precompiled SQL or a formal
    parameter in an SQL module language procedure that specifies the
    default alias.

2  –  alias-parameter-marker

    Specifies a parameter marker (?)  in a dynamic SQL statement. The
    alias parameter marker refers to a parameter that specifies the
    default alias.

3  –  alias-string-literal

    Specifies a character string literal that specifies the default
    alias. The alias string literal must be enclosed in single
    quotation marks.