Specifies the name of a prepared statement. If the PREPARE
    statement for the dynamically executed statement specifies a
    parameter, use the same parameter in the DESCRIBE statement
    instead of an explicit statement name.

    You can supply either a parameter or a compile-time statement
    name. Specifying a parameter lets SQL supply identifiers to
    programs at run time. Use an integer parameter to contain the
    statement identifier returned by SQL or a character string
    parameter to contain the name of the statement that you pass
    to SQL. See the PREPARE statement and the DECLARE Dynamic_CURSOR
    statement for more details.