ABAP Select data from SAP table /SAPSLL/CUS_INV_R3_S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPSLL/CUS_INV_R3_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 /SAPSLL/CUS_INV_R3_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 /SAPSLL/CUS_INV_R3_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_/SAPSLL/CUS_INV_R3_S TYPE STANDARD TABLE OF /SAPSLL/CUS_INV_R3_S,
      WA_/SAPSLL/CUS_INV_R3_S TYPE /SAPSLL/CUS_INV_R3_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: </SAPSLL/CUS_INV_R3_S> TYPE /SAPSLL/CUS_INV_R3_S.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SAPSLL/CUS_INV_R3_S.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPSLL/CUS_INV_R3_S
  INTO TABLE IT_/SAPSLL/CUS_INV_R3_S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPSLL/CUS_INV_R3_S
*  INTO TABLE @DATA(IT_/SAPSLL/CUS_INV_R3_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_/SAPSLL/CUS_INV_R3_S INDEX 1 INTO DATA(WA_/SAPSLL/CUS_INV_R3_S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPSLL/CUS_INV_R3_S ASSIGNING </SAPSLL/CUS_INV_R3_S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPSLL/CUS_INV_R3_S>-VBELN = 1.
</SAPSLL/CUS_INV_R3_S>-POSNR = 1.
</SAPSLL/CUS_INV_R3_S>-TKNUM = 1.
</SAPSLL/CUS_INV_R3_S>-MATNR = 1.
</SAPSLL/CUS_INV_R3_S>-WENR = 1.

ENDLOOP.

LOOP AT IT_/SAPSLL/CUS_INV_R3_S INTO WA_/SAPSLL/CUS_INV_R3_S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPSLL/CUS_INV_R3_S-SPNRL, sy-vline,
  WA_/SAPSLL/CUS_INV_R3_S-SPNRT, sy-vline,
  WA_/SAPSLL/CUS_INV_R3_S-KUNAG, sy-vline,
  WA_/SAPSLL/CUS_INV_R3_S-LAND1, sy-vline,
  WA_/SAPSLL/CUS_INV_R3_S-WADAT, sy-vline,
  WA_/SAPSLL/CUS_INV_R3_S-FKDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPSLL/CUS_INV_R3_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_/SAPSLL/CUS_INV_R3_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_/SAPSLL/CUS_INV_R3_S INTO WA_/SAPSLL/CUS_INV_R3_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.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/CUS_INV_R3_S-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/CUS_INV_R3_S-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TKNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/CUS_INV_R3_S-TKNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/CUS_INV_R3_S-TKNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/CUS_INV_R3_S-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/CUS_INV_R3_S-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WENR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/CUS_INV_R3_S-WENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/CUS_INV_R3_S-WENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SPNRL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/CUS_INV_R3_S-SPNRL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/CUS_INV_R3_S-SPNRL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SPNRT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/CUS_INV_R3_S-SPNRT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/CUS_INV_R3_S-SPNRT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/CUS_INV_R3_S-KUNAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/CUS_INV_R3_S-KUNAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/CUS_INV_R3_S-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/CUS_INV_R3_S-VRKME.
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_/SAPSLL/CUS_INV_R3_S_STR, 
VBELN TYPE STRING,
POSNR TYPE STRING,
TKNUM TYPE STRING,
MATNR TYPE STRING,
WENR TYPE STRING,
SPNRL TYPE STRING,
SPNRT TYPE STRING,
KUNAG TYPE STRING,
LAND1 TYPE STRING,
WADAT TYPE STRING,
FKDAT TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
WERKS TYPE STRING,
WERKS TYPE STRING,
LFIMG TYPE STRING,
VRKME TYPE STRING,
GRKOR TYPE STRING,
KZABE TYPE STRING,
KZGBE TYPE STRING,
VSBED TYPE STRING,
VSART TYPE STRING,
INCO1 TYPE STRING,
ROUTE TYPE STRING,
VSTEL TYPE STRING,
LSTEL TYPE STRING,
LGTOR TYPE STRING,
FLCON TYPE STRING,
FLBLK TYPE STRING,
LTCAT TYPE STRING,
LTCAT_TXT TYPE STRING,
VBTYP TYPE STRING,
PSTYV TYPE STRING,
LFART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPSLL/CUS_INV_R3_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_/SAPSLL/CUS_INV_R3_S_STR-VBELN sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-POSNR sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-TKNUM sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-MATNR sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-WENR sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-SPNRL sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-SPNRT sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-KUNAG sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-LAND1 sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-WADAT sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-FKDAT sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-VKORG sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-VTWEG sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-SPART sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-WERKS sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-WERKS sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-LFIMG sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-VRKME sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-GRKOR sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-KZABE sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-KZGBE sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-VSBED sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-VSART sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-INCO1 sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-ROUTE sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-VSTEL sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-LSTEL sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-LGTOR sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-FLCON sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-FLBLK sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-LTCAT sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-LTCAT_TXT sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-VBTYP sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-PSTYV sy-vline 
WA_/SAPSLL/CUS_INV_R3_S_STR-LFART sy-vline      INTO ld_text SEPARATED BY SPACE.

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