ABAP Select data from SAP table RL080_ITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RL080_ITEM 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 RL080_ITEM. 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 RL080_ITEM 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_RL080_ITEM TYPE STANDARD TABLE OF RL080_ITEM,
      WA_RL080_ITEM TYPE RL080_ITEM,
      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: <RL080_ITEM> TYPE RL080_ITEM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RL080_ITEM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RL080_ITEM
  INTO TABLE IT_RL080_ITEM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RL080_ITEM
*  INTO TABLE @DATA(IT_RL080_ITEM2).
*--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_RL080_ITEM INDEX 1 INTO DATA(WA_RL080_ITEM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RL080_ITEM ASSIGNING <RL080_ITEM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RL080_ITEM>-MATNR = 1.
<RL080_ITEM>-MAKTX = 1.
<RL080_ITEM>-SFNR1 = 1.
<RL080_ITEM>-SFNR2 = 1.
<RL080_ITEM>-SFNR3 = 1.

ENDLOOP.

LOOP AT IT_RL080_ITEM INTO WA_RL080_ITEM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RL080_ITEM-SFNR4, sy-vline,
  WA_RL080_ITEM-SFKO1, sy-vline,
  WA_RL080_ITEM-SFKO2, sy-vline,
  WA_RL080_ITEM-SFKO3, sy-vline,
  WA_RL080_ITEM-SFKO4, sy-vline,
  WA_RL080_ITEM-GVTX1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RL080_ITEM 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_RL080_ITEM 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_RL080_ITEM INTO WA_RL080_ITEM.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RL080_ITEM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RL080_ITEM-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RL080_ITEM-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RL080_ITEM-MEINS.
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_RL080_ITEM_STR, 
MATNR TYPE STRING,
MAKTX TYPE STRING,
SFNR1 TYPE STRING,
SFNR2 TYPE STRING,
SFNR3 TYPE STRING,
SFNR4 TYPE STRING,
SFKO1 TYPE STRING,
SFKO2 TYPE STRING,
SFKO3 TYPE STRING,
SFKO4 TYPE STRING,
GVTX1 TYPE STRING,
GVTX2 TYPE STRING,
GVTX3 TYPE STRING,
GVTX4 TYPE STRING,
GVTX5 TYPE STRING,
GVTX6 TYPE STRING,
GVTX7 TYPE STRING,
GVTX8 TYPE STRING,
HM_DISPLAY TYPE STRING,
HSNUM_DISPLAY TYPE STRING,
CONC_DISPLAY TYPE STRING,
LAGKL TYPE STRING,
WGFKL TYPE STRING,
GVTXT TYPE STRING,
GESME TYPE STRING,
MEINS TYPE STRING,
AGGRT TYPE STRING,
LGTYP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RL080_ITEM_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_RL080_ITEM_STR-MATNR sy-vline 
WA_RL080_ITEM_STR-MAKTX sy-vline 
WA_RL080_ITEM_STR-SFNR1 sy-vline 
WA_RL080_ITEM_STR-SFNR2 sy-vline 
WA_RL080_ITEM_STR-SFNR3 sy-vline 
WA_RL080_ITEM_STR-SFNR4 sy-vline 
WA_RL080_ITEM_STR-SFKO1 sy-vline 
WA_RL080_ITEM_STR-SFKO2 sy-vline 
WA_RL080_ITEM_STR-SFKO3 sy-vline 
WA_RL080_ITEM_STR-SFKO4 sy-vline 
WA_RL080_ITEM_STR-GVTX1 sy-vline 
WA_RL080_ITEM_STR-GVTX2 sy-vline 
WA_RL080_ITEM_STR-GVTX3 sy-vline 
WA_RL080_ITEM_STR-GVTX4 sy-vline 
WA_RL080_ITEM_STR-GVTX5 sy-vline 
WA_RL080_ITEM_STR-GVTX6 sy-vline 
WA_RL080_ITEM_STR-GVTX7 sy-vline 
WA_RL080_ITEM_STR-GVTX8 sy-vline 
WA_RL080_ITEM_STR-HM_DISPLAY sy-vline 
WA_RL080_ITEM_STR-HSNUM_DISPLAY sy-vline 
WA_RL080_ITEM_STR-CONC_DISPLAY sy-vline 
WA_RL080_ITEM_STR-LAGKL sy-vline 
WA_RL080_ITEM_STR-WGFKL sy-vline 
WA_RL080_ITEM_STR-GVTXT sy-vline 
WA_RL080_ITEM_STR-GESME sy-vline 
WA_RL080_ITEM_STR-MEINS sy-vline 
WA_RL080_ITEM_STR-AGGRT sy-vline 
WA_RL080_ITEM_STR-LGTYP sy-vline      INTO ld_text SEPARATED BY SPACE.

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