ABAP Select data from SAP table S643 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP S643 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 S643. 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 S643 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_S643 TYPE STANDARD TABLE OF S643,
      WA_S643 TYPE S643,
      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: <S643> TYPE S643.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_S643.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM S643
  INTO TABLE IT_S643.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM S643
*  INTO TABLE @DATA(IT_S6432).
*--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_S643 INDEX 1 INTO DATA(WA_S6432).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_S643 ASSIGNING <S643>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<S643>-MANDT = 1.
<S643>-SSOUR = 1.
<S643>-VRSIO = 1.
<S643>-SPMON = 1.
<S643>-SPTAG = 1.

ENDLOOP.

LOOP AT IT_S643 INTO WA_S643.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_S643-SPWOC, sy-vline,
  WA_S643-SPBUP, sy-vline,
  WA_S643-VKORG, sy-vline,
  WA_S643-SPART, sy-vline,
  WA_S643-KUNNR, sy-vline,
  WA_S643-MATNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_S643 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_S643 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_S643 INTO WA_S643.


*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_S643-SPMON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_S643-SPMON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field SPWOC
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_S643-SPWOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_S643-SPWOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field SPBUP
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_S643-SPBUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_S643-SPBUP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_S643-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_S643-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_S643-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_S643-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_S643-BASME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_S643-BASME.
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_S643_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,
SPART TYPE STRING,
KUNNR TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
PERIV TYPE STRING,
VWDAT TYPE STRING,
BASME TYPE STRING,
STWAE TYPE STRING,
AEMENGE TYPE STRING,
AENETWR TYPE STRING,
UMMENGE TYPE STRING,
FUMMENGE TYPE STRING,
UMNETWR TYPE STRING,
PRODU TYPE STRING,
LAGRI TYPE STRING,
LAGRZ TYPE STRING,
REICH TYPE STRING,
REICZ TYPE STRING,
ABSAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_S643_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_S643_STR-MANDT sy-vline 
WA_S643_STR-SSOUR sy-vline 
WA_S643_STR-VRSIO sy-vline 
WA_S643_STR-SPMON sy-vline 
WA_S643_STR-SPTAG sy-vline 
WA_S643_STR-SPWOC sy-vline 
WA_S643_STR-SPBUP sy-vline 
WA_S643_STR-VKORG sy-vline 
WA_S643_STR-SPART sy-vline 
WA_S643_STR-KUNNR sy-vline 
WA_S643_STR-MATNR sy-vline 
WA_S643_STR-WERKS sy-vline 
WA_S643_STR-PERIV sy-vline 
WA_S643_STR-VWDAT sy-vline 
WA_S643_STR-BASME sy-vline 
WA_S643_STR-STWAE sy-vline 
WA_S643_STR-AEMENGE sy-vline 
WA_S643_STR-AENETWR sy-vline 
WA_S643_STR-UMMENGE sy-vline 
WA_S643_STR-FUMMENGE sy-vline 
WA_S643_STR-UMNETWR sy-vline 
WA_S643_STR-PRODU sy-vline 
WA_S643_STR-LAGRI sy-vline 
WA_S643_STR-LAGRZ sy-vline 
WA_S643_STR-REICH sy-vline 
WA_S643_STR-REICZ sy-vline 
WA_S643_STR-ABSAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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