Specifies an SQLDA descriptor that contains addresses and data
    types that specify output parameters or variables.

    The descriptor must be a structure declared in the host language
    program as an SQLDA. If the program is precompiled and uses the
    embedded SQL statement INCLUDE SQLDA, the name of the structure
    is simply SQLDA. Programs can use multiple SQLDAs, but must
    explicitly declare them with names other than SQLDA.

    Programs can always use the INTO DESCRIPTOR clause of the EXECUTE
    statement whether or not the statement string contains output
    parameter markers, as long as the value of the SQLD field in
    the SQLDA corresponds to the number of output parameter markers.
    SQL updates the SQLD field with the correct number of output
    parameter markers when it processes the DESCRIBE statement for
    the statement string.