The declare for an array descriptor is:
declare
1 dsc_Array based( sysnull() ),
2 dsc_Array_Header like dsc_Header,
2 dsc_Array_EltLen fixed bin(31), /* Length of array element */
2 dsc_Array_Rank fixed bin(31), /* Count of dimensions */
2 dsc_Array_RVO fixed bin(31), /* Relative virtual origin */
2 dsc_Array_Data( 1: 1 refer(dsc_Array_Rank) ),
3 dsc_Array_LBound fixed bin(31), /* LBound */
3 dsc_Array_Extent fixed bin(31), /* HBound - LBound + 1 */
3 dsc_Array_Stride fixed bin(31); /* Multiplier */