ABAP Select data from SAP table E3KBEUL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E3KBEUL 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 E3KBEUL. 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 E3KBEUL 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_E3KBEUL TYPE STANDARD TABLE OF E3KBEUL,
      WA_E3KBEUL TYPE E3KBEUL,
      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: <E3KBEUL> TYPE E3KBEUL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E3KBEUL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E3KBEUL
  INTO TABLE IT_E3KBEUL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E3KBEUL
*  INTO TABLE @DATA(IT_E3KBEUL2).
*--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_E3KBEUL INDEX 1 INTO DATA(WA_E3KBEUL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E3KBEUL ASSIGNING <E3KBEUL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E3KBEUL>-BEDID = 1.
<E3KBEUL>-BEDZL = 1.
<E3KBEUL>-CANUM = 1.
<E3KBEUL>-BEDKZ = 1.
<E3KBEUL>-KABRREST = 1.

ENDLOOP.

LOOP AT IT_E3KBEUL INTO WA_E3KBEUL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E3KBEUL-KABRSOLL, sy-vline,
  WA_E3KBEUL-KAPAR, sy-vline,
  WA_E3KBEUL-KAPID, sy-vline,
  WA_E3KBEUL-KBEAREST, sy-vline,
  WA_E3KBEUL-KBEASOLL, sy-vline,
  WA_E3KBEUL-KEINH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E3KBEUL 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_E3KBEUL 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_E3KBEUL INTO WA_E3KBEUL.


*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 CUNIT, internal->external for field KEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_E3KBEUL-KEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KBEUL-KEINH.
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_E3KBEUL_STR, 
BEDID TYPE STRING,
BEDZL TYPE STRING,
CANUM TYPE STRING,
BEDKZ TYPE STRING,
KABRREST TYPE STRING,
KABRSOLL TYPE STRING,
KAPAR TYPE STRING,
KAPID TYPE STRING,
KBEAREST TYPE STRING,
KBEASOLL TYPE STRING,
KEINH TYPE STRING,
KRUEREST TYPE STRING,
KRUESOLL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E3KBEUL_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_E3KBEUL_STR-BEDID sy-vline 
WA_E3KBEUL_STR-BEDZL sy-vline 
WA_E3KBEUL_STR-CANUM sy-vline 
WA_E3KBEUL_STR-BEDKZ sy-vline 
WA_E3KBEUL_STR-KABRREST sy-vline 
WA_E3KBEUL_STR-KABRSOLL sy-vline 
WA_E3KBEUL_STR-KAPAR sy-vline 
WA_E3KBEUL_STR-KAPID sy-vline 
WA_E3KBEUL_STR-KBEAREST sy-vline 
WA_E3KBEUL_STR-KBEASOLL sy-vline 
WA_E3KBEUL_STR-KEINH sy-vline 
WA_E3KBEUL_STR-KRUEREST sy-vline 
WA_E3KBEUL_STR-KRUESOLL sy-vline      INTO ld_text SEPARATED BY SPACE.

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