ABAP Select data from SAP table S002 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP S002 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 S002. 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 S002 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_S002 TYPE STANDARD TABLE OF S002,
      WA_S002 TYPE S002,
      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: <S002> TYPE S002.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_S002.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM S002
  INTO TABLE IT_S002.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM S002
*  INTO TABLE @DATA(IT_S0022).
*--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_S002 INDEX 1 INTO DATA(WA_S0022).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_S002 ASSIGNING <S002>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<S002>-MANDT = 1.
<S002>-SSOUR = 1.
<S002>-VRSIO = 1.
<S002>-SPMON = 1.
<S002>-SPTAG = 1.

ENDLOOP.

LOOP AT IT_S002 INTO WA_S002.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_S002-SPWOC, sy-vline,
  WA_S002-SPBUP, sy-vline,
  WA_S002-VKORG, sy-vline,
  WA_S002-VKGRP, sy-vline,
  WA_S002-VKBUR, sy-vline,
  WA_S002-VTWEG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_S002 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_S002 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_S002 INTO WA_S002.


*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 PERI, internal->external for field SPMON
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_S002-SPMON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_S002-SPMON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field SPWOC
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_S002-SPWOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_S002-SPWOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field SPBUP
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_S002-SPBUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_S002-SPBUP.
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_S002_STR, 
MANDT TYPE STRING,
SSOUR TYPE STRING,
VRSIO TYPE STRING,
SPMON TYPE STRING,
SPTAG TYPE STRING,
SPWOC TYPE STRING,
SPBUP TYPE STRING,
VKORG TYPE STRING,
VKGRP TYPE STRING,
VKBUR TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
PERIV TYPE STRING,
VWDAT TYPE STRING,
STWAE TYPE STRING,
AENETWR TYPE STRING,
RENETWR TYPE STRING,
OAUWE TYPE STRING,
UMNETWR TYPE STRING,
GUNETWR TYPE STRING,
AEKZWI1 TYPE STRING,
AEKZWI2 TYPE STRING,
AEKZWI3 TYPE STRING,
AEKZWI4 TYPE STRING,
AEKZWI5 TYPE STRING,
AEKZWI6 TYPE STRING,
REKZWI1 TYPE STRING,
REKZWI2 TYPE STRING,
REKZWI3 TYPE STRING,
REKZWI4 TYPE STRING,
REKZWI5 TYPE STRING,
REKZWI6 TYPE STRING,
UMKZWI1 TYPE STRING,
UMKZWI2 TYPE STRING,
UMKZWI3 TYPE STRING,
UMKZWI4 TYPE STRING,
UMKZWI5 TYPE STRING,
UMKZWI6 TYPE STRING,
GUKZWI1 TYPE STRING,
GUKZWI2 TYPE STRING,
GUKZWI3 TYPE STRING,
GUKZWI4 TYPE STRING,
GUKZWI5 TYPE STRING,
GUKZWI6 TYPE STRING,
ANZAU TYPE STRING,
ANZRE TYPE STRING,
AEWAVWR TYPE STRING,
REWAVWR TYPE STRING,
UMWAVWR TYPE STRING,
GUWAVWR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_S002_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_S002_STR-MANDT sy-vline 
WA_S002_STR-SSOUR sy-vline 
WA_S002_STR-VRSIO sy-vline 
WA_S002_STR-SPMON sy-vline 
WA_S002_STR-SPTAG sy-vline 
WA_S002_STR-SPWOC sy-vline 
WA_S002_STR-SPBUP sy-vline 
WA_S002_STR-VKORG sy-vline 
WA_S002_STR-VKGRP sy-vline 
WA_S002_STR-VKBUR sy-vline 
WA_S002_STR-VTWEG sy-vline 
WA_S002_STR-SPART sy-vline 
WA_S002_STR-PERIV sy-vline 
WA_S002_STR-VWDAT sy-vline 
WA_S002_STR-STWAE sy-vline 
WA_S002_STR-AENETWR sy-vline 
WA_S002_STR-RENETWR sy-vline 
WA_S002_STR-OAUWE sy-vline 
WA_S002_STR-UMNETWR sy-vline 
WA_S002_STR-GUNETWR sy-vline 
WA_S002_STR-AEKZWI1 sy-vline 
WA_S002_STR-AEKZWI2 sy-vline 
WA_S002_STR-AEKZWI3 sy-vline 
WA_S002_STR-AEKZWI4 sy-vline 
WA_S002_STR-AEKZWI5 sy-vline 
WA_S002_STR-AEKZWI6 sy-vline 
WA_S002_STR-REKZWI1 sy-vline 
WA_S002_STR-REKZWI2 sy-vline 
WA_S002_STR-REKZWI3 sy-vline 
WA_S002_STR-REKZWI4 sy-vline 
WA_S002_STR-REKZWI5 sy-vline 
WA_S002_STR-REKZWI6 sy-vline 
WA_S002_STR-UMKZWI1 sy-vline 
WA_S002_STR-UMKZWI2 sy-vline 
WA_S002_STR-UMKZWI3 sy-vline 
WA_S002_STR-UMKZWI4 sy-vline 
WA_S002_STR-UMKZWI5 sy-vline 
WA_S002_STR-UMKZWI6 sy-vline 
WA_S002_STR-GUKZWI1 sy-vline 
WA_S002_STR-GUKZWI2 sy-vline 
WA_S002_STR-GUKZWI3 sy-vline 
WA_S002_STR-GUKZWI4 sy-vline 
WA_S002_STR-GUKZWI5 sy-vline 
WA_S002_STR-GUKZWI6 sy-vline 
WA_S002_STR-ANZAU sy-vline 
WA_S002_STR-ANZRE sy-vline 
WA_S002_STR-AEWAVWR sy-vline 
WA_S002_STR-REWAVWR sy-vline 
WA_S002_STR-UMWAVWR sy-vline 
WA_S002_STR-GUWAVWR sy-vline      INTO ld_text SEPARATED BY SPACE.

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