ABAP Select data from SAP table REBD_LOC_HIER_S 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_S 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_S. 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_S 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_S TYPE STANDARD TABLE OF REBD_LOC_HIER_S,
      WA_REBD_LOC_HIER_S TYPE REBD_LOC_HIER_S,
      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_S> TYPE REBD_LOC_HIER_S.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REBD_LOC_HIER_S
*  INTO TABLE @DATA(IT_REBD_LOC_HIER_S2).
*--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_S INDEX 1 INTO DATA(WA_REBD_LOC_HIER_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REBD_LOC_HIER_S>-LOCHIERNO = 1.
<REBD_LOC_HIER_S>-LOCSYS01 = 1.
<REBD_LOC_HIER_S>-LOCHIER01 = 1.
<REBD_LOC_HIER_S>-XLOCSYS01 = 1.
<REBD_LOC_HIER_S>-XLOCHIER01 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REBD_LOC_HIER_S-LOCLEVELCNT01, sy-vline,
  WA_REBD_LOC_HIER_S-LOCSYS02, sy-vline,
  WA_REBD_LOC_HIER_S-LOCHIER02, sy-vline,
  WA_REBD_LOC_HIER_S-XLOCSYS02, sy-vline,
  WA_REBD_LOC_HIER_S-XLOCHIER02, sy-vline,
  WA_REBD_LOC_HIER_S-LOCLEVELCNT02, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REBD_LOC_HIER_S 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_S 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_S INTO WA_REBD_LOC_HIER_S.


*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_S_STR, 
LOCHIERNO TYPE STRING,
LOCSYS01 TYPE STRING,
LOCHIER01 TYPE STRING,
XLOCSYS01 TYPE STRING,
XLOCHIER01 TYPE STRING,
LOCLEVELCNT01 TYPE STRING,
LOCSYS02 TYPE STRING,
LOCHIER02 TYPE STRING,
XLOCSYS02 TYPE STRING,
XLOCHIER02 TYPE STRING,
LOCLEVELCNT02 TYPE STRING,
LOCSYS03 TYPE STRING,
LOCHIER03 TYPE STRING,
XLOCSYS03 TYPE STRING,
XLOCHIER03 TYPE STRING,
LOCLEVELCNT03 TYPE STRING,
LOCSYS04 TYPE STRING,
LOCHIER04 TYPE STRING,
XLOCSYS04 TYPE STRING,
XLOCHIER04 TYPE STRING,
LOCLEVELCNT04 TYPE STRING,
LOCSYS05 TYPE STRING,
LOCHIER05 TYPE STRING,
XLOCSYS05 TYPE STRING,
XLOCHIER05 TYPE STRING,
LOCLEVELCNT05 TYPE STRING,
LOCSYS06 TYPE STRING,
LOCHIER06 TYPE STRING,
XLOCSYS06 TYPE STRING,
XLOCHIER06 TYPE STRING,
LOCLEVELCNT06 TYPE STRING,
LOCSYS07 TYPE STRING,
LOCHIER07 TYPE STRING,
XLOCSYS07 TYPE STRING,
XLOCHIER07 TYPE STRING,
LOCLEVELCNT07 TYPE STRING,
LOCSYS08 TYPE STRING,
LOCHIER08 TYPE STRING,
XLOCSYS08 TYPE STRING,
XLOCHIER08 TYPE STRING,
LOCLEVELCNT08 TYPE STRING,
LOCSYS09 TYPE STRING,
LOCHIER09 TYPE STRING,
XLOCSYS09 TYPE STRING,
XLOCHIER09 TYPE STRING,
LOCLEVELCNT09 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REBD_LOC_HIER_S_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_S_STR-LOCHIERNO sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCSYS01 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCHIER01 sy-vline 
WA_REBD_LOC_HIER_S_STR-XLOCSYS01 sy-vline 
WA_REBD_LOC_HIER_S_STR-XLOCHIER01 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCLEVELCNT01 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCSYS02 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCHIER02 sy-vline 
WA_REBD_LOC_HIER_S_STR-XLOCSYS02 sy-vline 
WA_REBD_LOC_HIER_S_STR-XLOCHIER02 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCLEVELCNT02 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCSYS03 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCHIER03 sy-vline 
WA_REBD_LOC_HIER_S_STR-XLOCSYS03 sy-vline 
WA_REBD_LOC_HIER_S_STR-XLOCHIER03 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCLEVELCNT03 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCSYS04 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCHIER04 sy-vline 
WA_REBD_LOC_HIER_S_STR-XLOCSYS04 sy-vline 
WA_REBD_LOC_HIER_S_STR-XLOCHIER04 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCLEVELCNT04 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCSYS05 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCHIER05 sy-vline 
WA_REBD_LOC_HIER_S_STR-XLOCSYS05 sy-vline 
WA_REBD_LOC_HIER_S_STR-XLOCHIER05 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCLEVELCNT05 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCSYS06 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCHIER06 sy-vline 
WA_REBD_LOC_HIER_S_STR-XLOCSYS06 sy-vline 
WA_REBD_LOC_HIER_S_STR-XLOCHIER06 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCLEVELCNT06 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCSYS07 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCHIER07 sy-vline 
WA_REBD_LOC_HIER_S_STR-XLOCSYS07 sy-vline 
WA_REBD_LOC_HIER_S_STR-XLOCHIER07 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCLEVELCNT07 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCSYS08 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCHIER08 sy-vline 
WA_REBD_LOC_HIER_S_STR-XLOCSYS08 sy-vline 
WA_REBD_LOC_HIER_S_STR-XLOCHIER08 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCLEVELCNT08 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCSYS09 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCHIER09 sy-vline 
WA_REBD_LOC_HIER_S_STR-XLOCSYS09 sy-vline 
WA_REBD_LOC_HIER_S_STR-XLOCHIER09 sy-vline 
WA_REBD_LOC_HIER_S_STR-LOCLEVELCNT09 sy-vline      INTO ld_text SEPARATED BY SPACE.

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