ABAP Select data from SAP table SEKBN into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SEKBN 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 SEKBN. 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 SEKBN 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_SEKBN TYPE STANDARD TABLE OF SEKBN,
      WA_SEKBN TYPE SEKBN,
      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: <SEKBN> TYPE SEKBN.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SEKBN
*  INTO TABLE @DATA(IT_SEKBN2).
*--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_SEKBN INDEX 1 INTO DATA(WA_SEKBN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SEKBN>-EBELN = 1.
<SEKBN>-EBELP = 1.
<SEKBN>-STUNR = 1.
<SEKBN>-ZAEHK = 1.
<SEKBN>-CURTP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SEKBN-ZEKKN, sy-vline,
  WA_SEKBN-FRWMG, sy-vline,
  WA_SEKBN-FRWWR, sy-vline,
  WA_SEKBN-FRRMG, sy-vline,
  WA_SEKBN-FRRWR, sy-vline,
  WA_SEKBN-FRAWE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SEKBN 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_SEKBN 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_SEKBN INTO WA_SEKBN.


*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 EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SEKBN-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SEKBN-EBELN.
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_SEKBN_STR, 
EBELN TYPE STRING,
EBELP TYPE STRING,
STUNR TYPE STRING,
ZAEHK TYPE STRING,
CURTP TYPE STRING,
ZEKKN TYPE STRING,
FRWMG TYPE STRING,
FRWWR TYPE STRING,
FRRMG TYPE STRING,
FRRWR TYPE STRING,
FRAWE TYPE STRING,
FRWMG_ABD TYPE STRING,
FRRMG_ABD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SEKBN_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_SEKBN_STR-EBELN sy-vline 
WA_SEKBN_STR-EBELP sy-vline 
WA_SEKBN_STR-STUNR sy-vline 
WA_SEKBN_STR-ZAEHK sy-vline 
WA_SEKBN_STR-CURTP sy-vline 
WA_SEKBN_STR-ZEKKN sy-vline 
WA_SEKBN_STR-FRWMG sy-vline 
WA_SEKBN_STR-FRWWR sy-vline 
WA_SEKBN_STR-FRRMG sy-vline 
WA_SEKBN_STR-FRRWR sy-vline 
WA_SEKBN_STR-FRAWE sy-vline 
WA_SEKBN_STR-FRWMG_ABD sy-vline 
WA_SEKBN_STR-FRRMG_ABD sy-vline      INTO ld_text SEPARATED BY SPACE.

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