ABAP Select data from SAP table ITOB_INHERITANCE_FIELDS_CHG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITOB_INHERITANCE_FIELDS_CHG
*  INTO TABLE @DATA(IT_ITOB_INHERITANCE_FIELDS_CHG2).
*--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_ITOB_INHERITANCE_FIELDS_CHG INDEX 1 INTO DATA(WA_ITOB_INHERITANCE_FIELDS_CHG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITOB_INHERITANCE_FIELDS_CHG>-STORT = 1.
<ITOB_INHERITANCE_FIELDS_CHG>-MSGRP = 1.
<ITOB_INHERITANCE_FIELDS_CHG>-BEBER = 1.
<ITOB_INHERITANCE_FIELDS_CHG>-PPSID = 1.
<ITOB_INHERITANCE_FIELDS_CHG>-ABCKZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITOB_INHERITANCE_FIELDS_CHG-EQFNR, sy-vline,
  WA_ITOB_INHERITANCE_FIELDS_CHG-GSBER, sy-vline,
  WA_ITOB_INHERITANCE_FIELDS_CHG-KOSTL, sy-vline,
  WA_ITOB_INHERITANCE_FIELDS_CHG-PROID, sy-vline,
  WA_ITOB_INHERITANCE_FIELDS_CHG-DAUFN, sy-vline,
  WA_ITOB_INHERITANCE_FIELDS_CHG-AUFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITOB_INHERITANCE_FIELDS_CHG 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_ITOB_INHERITANCE_FIELDS_CHG 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_ITOB_INHERITANCE_FIELDS_CHG INTO WA_ITOB_INHERITANCE_FIELDS_CHG.


*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.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ITOB_INHERITANCE_FIELDS_CHG-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITOB_INHERITANCE_FIELDS_CHG-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PROID
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_ITOB_INHERITANCE_FIELDS_CHG-PROID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITOB_INHERITANCE_FIELDS_CHG-PROID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DAUFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ITOB_INHERITANCE_FIELDS_CHG-DAUFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITOB_INHERITANCE_FIELDS_CHG-DAUFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ITOB_INHERITANCE_FIELDS_CHG-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITOB_INHERITANCE_FIELDS_CHG-AUFNR.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_ITOB_INHERITANCE_FIELDS_CHG_STR, 
STORT TYPE STRING,
MSGRP TYPE STRING,
BEBER TYPE STRING,
PPSID TYPE STRING,
ABCKZ TYPE STRING,
EQFNR TYPE STRING,
GSBER TYPE STRING,
KOSTL TYPE STRING,
PROID TYPE STRING,
DAUFN TYPE STRING,
AUFNR TYPE STRING,
IWERK TYPE STRING,
INGRP TYPE STRING,
WKCTR TYPE STRING,
RBNR TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITOB_INHERITANCE_FIELDS_CHG_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_ITOB_INHERITANCE_FIELDS_CHG_STR-STORT sy-vline 
WA_ITOB_INHERITANCE_FIELDS_CHG_STR-MSGRP sy-vline 
WA_ITOB_INHERITANCE_FIELDS_CHG_STR-BEBER sy-vline 
WA_ITOB_INHERITANCE_FIELDS_CHG_STR-PPSID sy-vline 
WA_ITOB_INHERITANCE_FIELDS_CHG_STR-ABCKZ sy-vline 
WA_ITOB_INHERITANCE_FIELDS_CHG_STR-EQFNR sy-vline 
WA_ITOB_INHERITANCE_FIELDS_CHG_STR-GSBER sy-vline 
WA_ITOB_INHERITANCE_FIELDS_CHG_STR-KOSTL sy-vline 
WA_ITOB_INHERITANCE_FIELDS_CHG_STR-PROID sy-vline 
WA_ITOB_INHERITANCE_FIELDS_CHG_STR-DAUFN sy-vline 
WA_ITOB_INHERITANCE_FIELDS_CHG_STR-AUFNR sy-vline 
WA_ITOB_INHERITANCE_FIELDS_CHG_STR-IWERK sy-vline 
WA_ITOB_INHERITANCE_FIELDS_CHG_STR-INGRP sy-vline 
WA_ITOB_INHERITANCE_FIELDS_CHG_STR-WKCTR sy-vline 
WA_ITOB_INHERITANCE_FIELDS_CHG_STR-RBNR sy-vline 
WA_ITOB_INHERITANCE_FIELDS_CHG_STR-VKORG sy-vline 
WA_ITOB_INHERITANCE_FIELDS_CHG_STR-VTWEG sy-vline 
WA_ITOB_INHERITANCE_FIELDS_CHG_STR-SPART sy-vline      INTO ld_text SEPARATED BY SPACE.

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