ABAP Select data from SAP table IADDITIONALT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IADDITIONALT 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 IADDITIONALT. 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 IADDITIONALT 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_IADDITIONALT TYPE STANDARD TABLE OF IADDITIONALT,
      WA_IADDITIONALT TYPE IADDITIONALT,
      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: <IADDITIONALT> TYPE IADDITIONALT.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IADDITIONALT
  INTO TABLE IT_IADDITIONALT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IADDITIONALT
*  INTO TABLE @DATA(IT_IADDITIONALT2).
*--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_IADDITIONALT INDEX 1 INTO DATA(WA_IADDITIONALT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IADDITIONALT ASSIGNING <IADDITIONALT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IADDITIONALT>-PROCESSFLOWLAYOUT = 1.
<IADDITIONALT>-PROCESSFLOWNODECATEGORY = 1.
<IADDITIONALT>-PROCESSFLOWISSEMANTICOBJECT = 1.
<IADDITIONALT>-PROCESSFLOWLANE = 1.
<IADDITIONALT>-PROCESSFLOWSTATUSFIELD = 1.

ENDLOOP.

LOOP AT IT_IADDITIONALT INTO WA_IADDITIONALT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IADDITIONALT-PROCESSFLOWNODECDSVIEWNAME, sy-vline,
  WA_IADDITIONALT-PROCESSFLOWSEMANTICOBJECT, sy-vline,
  WA_IADDITIONALT-PROCESSFLOWNODETITLE, sy-vline,
  WA_IADDITIONALT-PROCESSFLOWNODESHORTTITLE, sy-vline,
  WA_IADDITIONALT-PROCESSFLOWHASLABEL, sy-vline,
  WA_IADDITIONALT-PROCESSFLOWHASLABELPOPOVER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IADDITIONALT 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_IADDITIONALT 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_IADDITIONALT INTO WA_IADDITIONALT.


*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_IADDITIONALT_STR, 
PROCESSFLOWLAYOUT TYPE STRING,
PROCESSFLOWNODECATEGORY TYPE STRING,
PROCESSFLOWISSEMANTICOBJECT TYPE STRING,
PROCESSFLOWLANE TYPE STRING,
PROCESSFLOWSTATUSFIELD TYPE STRING,
PROCESSFLOWNODECDSVIEWNAME TYPE STRING,
PROCESSFLOWSEMANTICOBJECT TYPE STRING,
PROCESSFLOWNODETITLE TYPE STRING,
PROCESSFLOWNODESHORTTITLE TYPE STRING,
PROCESSFLOWHASLABEL TYPE STRING,
PROCESSFLOWHASLABELPOPOVER TYPE STRING,
PROCESSFLOWHASNODEPOPOVER TYPE STRING,
PROCESSFLOW1STPARAMETERFIELD TYPE STRING,
PROCESSFLOW2NDPARAMETERFIELD TYPE STRING,
PROCESSFLOW3RDPARAMETERFIELD TYPE STRING,
PROCESSFLOW4THPARAMETERFIELD TYPE STRING,
PROCESSFLOW5THPARAMETERFIELD TYPE STRING,
PROCESSFLOW6THPARAMETERFIELD TYPE STRING,
PROCESSFLOWDYNAMICNODETITLE TYPE STRING,
PROCESSFLOWDYNNODESHORTTITLE TYPE STRING,
PROCESSFLOWHASOBJNAVGN TYPE STRING,
PROCESSFLOWHASACTN TYPE STRING,
PROCESSFLOWNODEFIRSTTEXTFIELD TYPE STRING,
PROCESSFLOWADDITIONALTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IADDITIONALT_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_IADDITIONALT_STR-PROCESSFLOWLAYOUT sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOWNODECATEGORY sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOWISSEMANTICOBJECT sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOWLANE sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOWSTATUSFIELD sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOWNODECDSVIEWNAME sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOWSEMANTICOBJECT sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOWNODETITLE sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOWNODESHORTTITLE sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOWHASLABEL sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOWHASLABELPOPOVER sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOWHASNODEPOPOVER sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOW1STPARAMETERFIELD sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOW2NDPARAMETERFIELD sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOW3RDPARAMETERFIELD sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOW4THPARAMETERFIELD sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOW5THPARAMETERFIELD sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOW6THPARAMETERFIELD sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOWDYNAMICNODETITLE sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOWDYNNODESHORTTITLE sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOWHASOBJNAVGN sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOWHASACTN sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOWNODEFIRSTTEXTFIELD sy-vline 
WA_IADDITIONALT_STR-PROCESSFLOWADDITIONALTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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