ABAP Select data from SAP table BAPIBUSISM007_HIERARCHY into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BAPIBUSISM007_HIERARCHY 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 BAPIBUSISM007_HIERARCHY. 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 BAPIBUSISM007_HIERARCHY 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_BAPIBUSISM007_HIERARCHY TYPE STANDARD TABLE OF BAPIBUSISM007_HIERARCHY,
      WA_BAPIBUSISM007_HIERARCHY TYPE BAPIBUSISM007_HIERARCHY,
      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: <BAPIBUSISM007_HIERARCHY> TYPE BAPIBUSISM007_HIERARCHY.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BAPIBUSISM007_HIERARCHY.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BAPIBUSISM007_HIERARCHY
  INTO TABLE IT_BAPIBUSISM007_HIERARCHY.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPIBUSISM007_HIERARCHY
*  INTO TABLE @DATA(IT_BAPIBUSISM007_HIERARCHY2).
*--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_BAPIBUSISM007_HIERARCHY INDEX 1 INTO DATA(WA_BAPIBUSISM007_HIERARCHY2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BAPIBUSISM007_HIERARCHY ASSIGNING <BAPIBUSISM007_HIERARCHY>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPIBUSISM007_HIERARCHY>-LOWERLEVELPARTNER = 1.
<BAPIBUSISM007_HIERARCHY>-LOWERLEVELSNAME = 1.
<BAPIBUSISM007_HIERARCHY>-LOWERLEVELLNAME = 1.
<BAPIBUSISM007_HIERARCHY>-HIGHERLEVELPARTNER = 1.
<BAPIBUSISM007_HIERARCHY>-HIGHERLEVELSNAME = 1.

ENDLOOP.

LOOP AT IT_BAPIBUSISM007_HIERARCHY INTO WA_BAPIBUSISM007_HIERARCHY.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPIBUSISM007_HIERARCHY-HIGHERLEVELLNAME, sy-vline,
  WA_BAPIBUSISM007_HIERARCHY-VALIDFROMDATE, sy-vline,
  WA_BAPIBUSISM007_HIERARCHY-VALIDUNTILDATE, sy-vline,
  WA_BAPIBUSISM007_HIERARCHY-PERCENTAGESHARE, sy-vline,
  WA_BAPIBUSISM007_HIERARCHY-CREATEDBY, sy-vline,
  WA_BAPIBUSISM007_HIERARCHY-CREATEDON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPIBUSISM007_HIERARCHY 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_BAPIBUSISM007_HIERARCHY 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_BAPIBUSISM007_HIERARCHY INTO WA_BAPIBUSISM007_HIERARCHY.


*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 LOWERLEVELPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIBUSISM007_HIERARCHY-LOWERLEVELPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIBUSISM007_HIERARCHY-LOWERLEVELPARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HIGHERLEVELPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIBUSISM007_HIERARCHY-HIGHERLEVELPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIBUSISM007_HIERARCHY-HIGHERLEVELPARTNER.
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_BAPIBUSISM007_HIERARCHY_STR, 
LOWERLEVELPARTNER TYPE STRING,
LOWERLEVELSNAME TYPE STRING,
LOWERLEVELLNAME TYPE STRING,
HIGHERLEVELPARTNER TYPE STRING,
HIGHERLEVELSNAME TYPE STRING,
HIGHERLEVELLNAME TYPE STRING,
VALIDFROMDATE TYPE STRING,
VALIDUNTILDATE TYPE STRING,
PERCENTAGESHARE TYPE STRING,
CREATEDBY TYPE STRING,
CREATEDON TYPE STRING,
CREATEDAT TYPE STRING,
CHANGEDBY TYPE STRING,
CHANGEDON TYPE STRING,
CHANGEDAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPIBUSISM007_HIERARCHY_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_BAPIBUSISM007_HIERARCHY_STR-LOWERLEVELPARTNER sy-vline 
WA_BAPIBUSISM007_HIERARCHY_STR-LOWERLEVELSNAME sy-vline 
WA_BAPIBUSISM007_HIERARCHY_STR-LOWERLEVELLNAME sy-vline 
WA_BAPIBUSISM007_HIERARCHY_STR-HIGHERLEVELPARTNER sy-vline 
WA_BAPIBUSISM007_HIERARCHY_STR-HIGHERLEVELSNAME sy-vline 
WA_BAPIBUSISM007_HIERARCHY_STR-HIGHERLEVELLNAME sy-vline 
WA_BAPIBUSISM007_HIERARCHY_STR-VALIDFROMDATE sy-vline 
WA_BAPIBUSISM007_HIERARCHY_STR-VALIDUNTILDATE sy-vline 
WA_BAPIBUSISM007_HIERARCHY_STR-PERCENTAGESHARE sy-vline 
WA_BAPIBUSISM007_HIERARCHY_STR-CREATEDBY sy-vline 
WA_BAPIBUSISM007_HIERARCHY_STR-CREATEDON sy-vline 
WA_BAPIBUSISM007_HIERARCHY_STR-CREATEDAT sy-vline 
WA_BAPIBUSISM007_HIERARCHY_STR-CHANGEDBY sy-vline 
WA_BAPIBUSISM007_HIERARCHY_STR-CHANGEDON sy-vline 
WA_BAPIBUSISM007_HIERARCHY_STR-CHANGEDAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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