Function SQLParamData 

pub unsafe extern "system" fn SQLParamData(
    hstmt: HStmt,
    value_out: *mut Pointer,
) -> SqlReturn

Used together with SQLPutData to supply parameter data at statement execution time, and with SQLGetData to retrieve streamed output parameter data.

Returns

SUCCESS, SUCCESS_WITH_INFO, NEED_DATA, NO_DATA, STILL_EXECUTING, ERROR, INVALID_HANDLE, or PARAM_DATA_AVAILABLE.