ABAP Select data from SAP table /SAPAPO/SNODEDISP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPAPO/SNODEDISP table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to /SAPAPO/SNODEDISP. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the /SAPAPO/SNODEDISP table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_/SAPAPO/SNODEDISP TYPE STANDARD TABLE OF /SAPAPO/SNODEDISP,
      WA_/SAPAPO/SNODEDISP TYPE /SAPAPO/SNODEDISP,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: </SAPAPO/SNODEDISP> TYPE /SAPAPO/SNODEDISP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SAPAPO/SNODEDISP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPAPO/SNODEDISP
  INTO TABLE IT_/SAPAPO/SNODEDISP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/SNODEDISP
*  INTO TABLE @DATA(IT_/SAPAPO/SNODEDISP2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_/SAPAPO/SNODEDISP INDEX 1 INTO DATA(WA_/SAPAPO/SNODEDISP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPAPO/SNODEDISP ASSIGNING </SAPAPO/SNODEDISP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/SNODEDISP>-XNODEID = 1.
</SAPAPO/SNODEDISP>-XPOS = 1.
</SAPAPO/SNODEDISP>-YPOS = 1.
</SAPAPO/SNODEDISP>-XPOSREL = 1.
</SAPAPO/SNODEDISP>-YPOSREL = 1.

ENDLOOP.

LOOP AT IT_/SAPAPO/SNODEDISP INTO WA_/SAPAPO/SNODEDISP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/SNODEDISP-MANDT, sy-vline,
  WA_/SAPAPO/SNODEDISP-NODETYPE, sy-vline,
  WA_/SAPAPO/SNODEDISP-CONTEXT, sy-vline,
  WA_/SAPAPO/SNODEDISP-ICONID, sy-vline,
  WA_/SAPAPO/SNODEDISP-ICONSIZE, sy-vline,
  WA_/SAPAPO/SNODEDISP-SAPICONID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/SNODEDISP you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_/SAPAPO/SNODEDISP TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_/SAPAPO/SNODEDISP INTO WA_/SAPAPO/SNODEDISP.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/SAPAPO/SNODEDISP_STR, 
XNODEID TYPE STRING,
XPOS TYPE STRING,
YPOS TYPE STRING,
XPOSREL TYPE STRING,
YPOSREL TYPE STRING,
MANDT TYPE STRING,
NODETYPE TYPE STRING,
CONTEXT TYPE STRING,
ICONID TYPE STRING,
ICONSIZE TYPE STRING,
SAPICONID TYPE STRING,
VISIBLEF TYPE STRING,
VISIBLET TYPE STRING,
TEXTCOL TYPE STRING,
DESCR40 TYPE STRING,
MENUID TYPE STRING,
XNODETYPE TYPE STRING,
XQLEVEL TYPE STRING,
MOVABLE TYPE STRING,
SELECTABLE TYPE STRING,
VISIBLE TYPE STRING,
TEXT01 TYPE STRING,
TEXT02 TYPE STRING,
TOOLTIP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/SNODEDISP_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_/SAPAPO/SNODEDISP_STR-XNODEID sy-vline 
WA_/SAPAPO/SNODEDISP_STR-XPOS sy-vline 
WA_/SAPAPO/SNODEDISP_STR-YPOS sy-vline 
WA_/SAPAPO/SNODEDISP_STR-XPOSREL sy-vline 
WA_/SAPAPO/SNODEDISP_STR-YPOSREL sy-vline 
WA_/SAPAPO/SNODEDISP_STR-MANDT sy-vline 
WA_/SAPAPO/SNODEDISP_STR-NODETYPE sy-vline 
WA_/SAPAPO/SNODEDISP_STR-CONTEXT sy-vline 
WA_/SAPAPO/SNODEDISP_STR-ICONID sy-vline 
WA_/SAPAPO/SNODEDISP_STR-ICONSIZE sy-vline 
WA_/SAPAPO/SNODEDISP_STR-SAPICONID sy-vline 
WA_/SAPAPO/SNODEDISP_STR-VISIBLEF sy-vline 
WA_/SAPAPO/SNODEDISP_STR-VISIBLET sy-vline 
WA_/SAPAPO/SNODEDISP_STR-TEXTCOL sy-vline 
WA_/SAPAPO/SNODEDISP_STR-DESCR40 sy-vline 
WA_/SAPAPO/SNODEDISP_STR-MENUID sy-vline 
WA_/SAPAPO/SNODEDISP_STR-XNODETYPE sy-vline 
WA_/SAPAPO/SNODEDISP_STR-XQLEVEL sy-vline 
WA_/SAPAPO/SNODEDISP_STR-MOVABLE sy-vline 
WA_/SAPAPO/SNODEDISP_STR-SELECTABLE sy-vline 
WA_/SAPAPO/SNODEDISP_STR-VISIBLE sy-vline 
WA_/SAPAPO/SNODEDISP_STR-TEXT01 sy-vline 
WA_/SAPAPO/SNODEDISP_STR-TEXT02 sy-vline 
WA_/SAPAPO/SNODEDISP_STR-TOOLTIP sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.