problem reading data from nested internal table.

[Former Member]

Hi,

Below is my code;

*********SAP Code********

TYPES: BEGIN OF v54a0_scdd,

fknum LIKE vfkk-fknum,

change LIKE vfkkd-updkz,

x TYPE v54a0_scd,

y TYPE v54a0_scd,

tvtf LIKE tvtf,

END OF v54a0_scdd.

• SCD table for dialog

TYPES: v54a0_scdd_tab TYPE v54a0_scdd OCCURS 1.

*********SAP Code********

*Custom declaration*****

data: wa_freight_costs type v54a0_scdd_tab.

data: it_freight_costs type v54a0_scdd_tab occurs 0.

*****Here data is getting appended to it_freight_costs. P_frieght_costs is coming from standard program.

move p_freight_costs TO wa_FREIGHT_COSTS.

append wa_freight_costs to it_freight_costs.

clear wa_freight_costs.

***Now the problem is here. I am not able to read the data from the nested internal table x-item.

if i use <fs_f_costs> to move data from it_freight_costs in the outer loop, i get a syntax error; <i> "the line type of the table it_freight_costs is not compatible with field symbol type <fs_f_costs>" </i>

FIELD-SYMBOLS: <fs_f_costs> type line of v54a0_scdd_tab.

LOOP AT it_freight_costs assigning <fs_f_costs>.

LOOP AT <fs_f_costs>-x-item ASSIGNING <fs_freight_item>.

<b> I want to read <fs_freight_item>-vfkp-netwr.</b>

ENDLOOP.

Can anyone guide me?

[Former Member]

You should move <b><fs_f_costs>-x</b> to a new internal table and then read <b>item</b> from that IT....Then you could assign values to the FS....

Greetings,

Blag.

[Former Member]

Thanks Blag. But as i said i am getting the sytax error at the outer loop itself. Once i pass this only then i can think about the second loop.

[Former Member]

Please note that TYPE v54a0_scdd_tab is already an internal table type. Instead of try to declare your custom declarations as follows.

*Custom declaration*****

data: wa_freight_costs type v54a0_scdd.

data: it_freight_costs type v54a0_scdd occurs 0.

[Former Member]

I have tried this one. in this case when i am trying to <b>append</b> the data to it_freight_costs, during the runtime it is giving me a dump which says <b><i>conversion from V54A0_SCDD_TAB to V54A0_SCDD is not supported.</i></b>

[Former Member]

This message was moderated.

[GrahamRobbo]

A quick look at how I would do this. Note I haven't checked if this compiles just done a quick brain-dump.

  DATA: lr_f_costs TYPE REF TO v54a0_scdd_tab,
        lr_f_cost TYPE REF TO v54a0_scdd.

  LOOP AT it_freight_costs REFERENCE INTO lr_f_costs.
    LOOP AT lr_f_costs->* REFERENCE INTO lr_f_cost.

    ENDLOOP.

  ENDLOOP.

As you can see I personally prefer pointers to field symbols - I don't believe there is any performance differences and because of my background in other languages pointers make more sense to me.

Cheers

Graham Robbo