ABAP Select data from SAP table REBD_LOC_HIER_X into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REBD_LOC_HIER_X
*  INTO TABLE @DATA(IT_REBD_LOC_HIER_X2).
*--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_REBD_LOC_HIER_X INDEX 1 INTO DATA(WA_REBD_LOC_HIER_X2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REBD_LOC_HIER_X>-MANDT = 1.
<REBD_LOC_HIER_X>-INTRENO = 1.
<REBD_LOC_HIER_X>-LOCSYS = 1.
<REBD_LOC_HIER_X>-LOCHIER = 1.
<REBD_LOC_HIER_X>-XLOCSYS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REBD_LOC_HIER_X-XLOCHIER, sy-vline,
  WA_REBD_LOC_HIER_X-XLOCHIERUPC, sy-vline,
  WA_REBD_LOC_HIER_X-LOCITEM01, sy-vline,
  WA_REBD_LOC_HIER_X-XLOCITEM01, sy-vline,
  WA_REBD_LOC_HIER_X-XLOCITEM01UPC, sy-vline,
  WA_REBD_LOC_HIER_X-LOCITEM02, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REBD_LOC_HIER_X 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_REBD_LOC_HIER_X 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_REBD_LOC_HIER_X INTO WA_REBD_LOC_HIER_X.


*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_REBD_LOC_HIER_X_STR, 
MANDT TYPE STRING,
INTRENO TYPE STRING,
LOCSYS TYPE STRING,
LOCHIER TYPE STRING,
XLOCSYS TYPE STRING,
XLOCHIER TYPE STRING,
XLOCHIERUPC TYPE STRING,
LOCITEM01 TYPE STRING,
XLOCITEM01 TYPE STRING,
XLOCITEM01UPC TYPE STRING,
LOCITEM02 TYPE STRING,
XLOCITEM02 TYPE STRING,
XLOCITEM02UPC TYPE STRING,
LOCITEM03 TYPE STRING,
XLOCITEM03 TYPE STRING,
XLOCITEM03UPC TYPE STRING,
LOCITEM04 TYPE STRING,
XLOCITEM04 TYPE STRING,
XLOCITEM04UPC TYPE STRING,
LOCITEM05 TYPE STRING,
XLOCITEM05 TYPE STRING,
XLOCITEM05UPC TYPE STRING,
LOCITEM06 TYPE STRING,
XLOCITEM06 TYPE STRING,
XLOCITEM06UPC TYPE STRING,
LOCITEM07 TYPE STRING,
XLOCITEM07 TYPE STRING,
XLOCITEM07UPC TYPE STRING,
LOCITEM08 TYPE STRING,
XLOCITEM08 TYPE STRING,
XLOCITEM08UPC TYPE STRING,
LOCITEM09 TYPE STRING,
XLOCITEM09 TYPE STRING,
XLOCITEM09UPC TYPE STRING,
LOCLEVELCNT TYPE STRING,
XLOCLEVEL01 TYPE STRING,
XLOCLEVEL02 TYPE STRING,
XLOCLEVEL03 TYPE STRING,
XLOCLEVEL04 TYPE STRING,
XLOCLEVEL05 TYPE STRING,
XLOCLEVEL06 TYPE STRING,
XLOCLEVEL07 TYPE STRING,
XLOCLEVEL08 TYPE STRING,
XLOCLEVEL09 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REBD_LOC_HIER_X_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_REBD_LOC_HIER_X_STR-MANDT sy-vline 
WA_REBD_LOC_HIER_X_STR-INTRENO sy-vline 
WA_REBD_LOC_HIER_X_STR-LOCSYS sy-vline 
WA_REBD_LOC_HIER_X_STR-LOCHIER sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCSYS sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCHIER sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCHIERUPC sy-vline 
WA_REBD_LOC_HIER_X_STR-LOCITEM01 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCITEM01 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCITEM01UPC sy-vline 
WA_REBD_LOC_HIER_X_STR-LOCITEM02 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCITEM02 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCITEM02UPC sy-vline 
WA_REBD_LOC_HIER_X_STR-LOCITEM03 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCITEM03 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCITEM03UPC sy-vline 
WA_REBD_LOC_HIER_X_STR-LOCITEM04 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCITEM04 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCITEM04UPC sy-vline 
WA_REBD_LOC_HIER_X_STR-LOCITEM05 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCITEM05 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCITEM05UPC sy-vline 
WA_REBD_LOC_HIER_X_STR-LOCITEM06 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCITEM06 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCITEM06UPC sy-vline 
WA_REBD_LOC_HIER_X_STR-LOCITEM07 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCITEM07 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCITEM07UPC sy-vline 
WA_REBD_LOC_HIER_X_STR-LOCITEM08 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCITEM08 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCITEM08UPC sy-vline 
WA_REBD_LOC_HIER_X_STR-LOCITEM09 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCITEM09 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCITEM09UPC sy-vline 
WA_REBD_LOC_HIER_X_STR-LOCLEVELCNT sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCLEVEL01 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCLEVEL02 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCLEVEL03 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCLEVEL04 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCLEVEL05 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCLEVEL06 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCLEVEL07 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCLEVEL08 sy-vline 
WA_REBD_LOC_HIER_X_STR-XLOCLEVEL09 sy-vline      INTO ld_text SEPARATED BY SPACE.

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