ABAP Select data from SAP table E3KEKO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E3KEKO 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 E3KEKO. 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 E3KEKO 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_E3KEKO TYPE STANDARD TABLE OF E3KEKO,
      WA_E3KEKO TYPE E3KEKO,
      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: <E3KEKO> TYPE E3KEKO.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E3KEKO.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E3KEKO
  INTO TABLE IT_E3KEKO.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E3KEKO
*  INTO TABLE @DATA(IT_E3KEKO2).
*--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_E3KEKO INDEX 1 INTO DATA(WA_E3KEKO2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E3KEKO ASSIGNING <E3KEKO>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E3KEKO>-MANDT = 1.
<E3KEKO>-BZOBJ = 1.
<E3KEKO>-KALNR = 1.
<E3KEKO>-KALKA = 1.
<E3KEKO>-KADKY = 1.

ENDLOOP.

LOOP AT IT_E3KEKO INTO WA_E3KEKO.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E3KEKO-TVERS, sy-vline,
  WA_E3KEKO-BWVAR, sy-vline,
  WA_E3KEKO-KKZMA, sy-vline,
  WA_E3KEKO-MATNR, sy-vline,
  WA_E3KEKO-WERKS, sy-vline,
  WA_E3KEKO-BWKEY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E3KEKO 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_E3KEKO 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_E3KEKO INTO WA_E3KEKO.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_E3KEKO-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KEKO-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field STNUM
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_E3KEKO-STNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KEKO-STNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field STALT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3KEKO-STALT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KEKO-STALT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3KEKO-PLNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KEKO-PLNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLNAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3KEKO-PLNAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KEKO-PLNAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_E3KEKO-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KEKO-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field BDATJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_E3KEKO-BDATJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KEKO-BDATJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field TYPE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_E3KEKO-TYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KEKO-TYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field PROZESS
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_E3KEKO-PROZESS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KEKO-PROZESS.
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_E3KEKO_STR, 
MANDT TYPE STRING,
BZOBJ TYPE STRING,
KALNR TYPE STRING,
KALKA TYPE STRING,
KADKY TYPE STRING,
TVERS TYPE STRING,
BWVAR TYPE STRING,
KKZMA TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
BWKEY TYPE STRING,
BWTAR TYPE STRING,
KOKRS TYPE STRING,
KADAT TYPE STRING,
BIDAT TYPE STRING,
KADAM TYPE STRING,
BIDAM TYPE STRING,
BWDAT TYPE STRING,
ALDAT TYPE STRING,
BEDAT TYPE STRING,
STNUM TYPE STRING,
STLAN TYPE STRING,
STALT TYPE STRING,
STCNT TYPE STRING,
PLNNR TYPE STRING,
PLNTY TYPE STRING,
PLNAL TYPE STRING,
PLNCT TYPE STRING,
LOEKZ TYPE STRING,
LOSGR TYPE STRING,
MEINS TYPE STRING,
FEH_ANZ TYPE STRING,
FEH_K_ANZ TYPE STRING,
FEH_STA TYPE STRING,
FREIG TYPE STRING,
MKALK TYPE STRING,
SOBES TYPE STRING,
SOWRK TYPE STRING,
SOBWT TYPE STRING,
KALSM TYPE STRING,
AUFZA TYPE STRING,
BWSMR TYPE STRING,
KLVAR TYPE STRING,
KOSGR TYPE STRING,
ZSCHL TYPE STRING,
POPER TYPE STRING,
BDATJ TYPE STRING,
STKOZ TYPE STRING,
ZAEHL TYPE STRING,
OCS_COUNT TYPE STRING,
ERZKA TYPE STRING,
LOSAU TYPE STRING,
SAPRL TYPE STRING,
KZROH TYPE STRING,
CUOBJ TYPE STRING,
CUOBJID TYPE STRING,
TYPE TYPE STRING,
VORMDAT TYPE STRING,
VORMUSR TYPE STRING,
FREIDAT TYPE STRING,
FREIUSR TYPE STRING,
UEBID TYPE STRING,
PROZESS TYPE STRING,
CSPLIT TYPE STRING,
WAERS TYPE STRING,
WAERO TYPE STRING,
UMRDAT TYPE STRING,
BUKRS TYPE STRING,
KALKL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E3KEKO_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_E3KEKO_STR-MANDT sy-vline 
WA_E3KEKO_STR-BZOBJ sy-vline 
WA_E3KEKO_STR-KALNR sy-vline 
WA_E3KEKO_STR-KALKA sy-vline 
WA_E3KEKO_STR-KADKY sy-vline 
WA_E3KEKO_STR-TVERS sy-vline 
WA_E3KEKO_STR-BWVAR sy-vline 
WA_E3KEKO_STR-KKZMA sy-vline 
WA_E3KEKO_STR-MATNR sy-vline 
WA_E3KEKO_STR-WERKS sy-vline 
WA_E3KEKO_STR-BWKEY sy-vline 
WA_E3KEKO_STR-BWTAR sy-vline 
WA_E3KEKO_STR-KOKRS sy-vline 
WA_E3KEKO_STR-KADAT sy-vline 
WA_E3KEKO_STR-BIDAT sy-vline 
WA_E3KEKO_STR-KADAM sy-vline 
WA_E3KEKO_STR-BIDAM sy-vline 
WA_E3KEKO_STR-BWDAT sy-vline 
WA_E3KEKO_STR-ALDAT sy-vline 
WA_E3KEKO_STR-BEDAT sy-vline 
WA_E3KEKO_STR-STNUM sy-vline 
WA_E3KEKO_STR-STLAN sy-vline 
WA_E3KEKO_STR-STALT sy-vline 
WA_E3KEKO_STR-STCNT sy-vline 
WA_E3KEKO_STR-PLNNR sy-vline 
WA_E3KEKO_STR-PLNTY sy-vline 
WA_E3KEKO_STR-PLNAL sy-vline 
WA_E3KEKO_STR-PLNCT sy-vline 
WA_E3KEKO_STR-LOEKZ sy-vline 
WA_E3KEKO_STR-LOSGR sy-vline 
WA_E3KEKO_STR-MEINS sy-vline 
WA_E3KEKO_STR-FEH_ANZ sy-vline 
WA_E3KEKO_STR-FEH_K_ANZ sy-vline 
WA_E3KEKO_STR-FEH_STA sy-vline 
WA_E3KEKO_STR-FREIG sy-vline 
WA_E3KEKO_STR-MKALK sy-vline 
WA_E3KEKO_STR-SOBES sy-vline 
WA_E3KEKO_STR-SOWRK sy-vline 
WA_E3KEKO_STR-SOBWT sy-vline 
WA_E3KEKO_STR-KALSM sy-vline 
WA_E3KEKO_STR-AUFZA sy-vline 
WA_E3KEKO_STR-BWSMR sy-vline 
WA_E3KEKO_STR-KLVAR sy-vline 
WA_E3KEKO_STR-KOSGR sy-vline 
WA_E3KEKO_STR-ZSCHL sy-vline 
WA_E3KEKO_STR-POPER sy-vline 
WA_E3KEKO_STR-BDATJ sy-vline 
WA_E3KEKO_STR-STKOZ sy-vline 
WA_E3KEKO_STR-ZAEHL sy-vline 
WA_E3KEKO_STR-OCS_COUNT sy-vline 
WA_E3KEKO_STR-ERZKA sy-vline 
WA_E3KEKO_STR-LOSAU sy-vline 
WA_E3KEKO_STR-SAPRL sy-vline 
WA_E3KEKO_STR-KZROH sy-vline 
WA_E3KEKO_STR-CUOBJ sy-vline 
WA_E3KEKO_STR-CUOBJID sy-vline 
WA_E3KEKO_STR-TYPE sy-vline 
WA_E3KEKO_STR-VORMDAT sy-vline 
WA_E3KEKO_STR-VORMUSR sy-vline 
WA_E3KEKO_STR-FREIDAT sy-vline 
WA_E3KEKO_STR-FREIUSR sy-vline 
WA_E3KEKO_STR-UEBID sy-vline 
WA_E3KEKO_STR-PROZESS sy-vline 
WA_E3KEKO_STR-CSPLIT sy-vline 
WA_E3KEKO_STR-WAERS sy-vline 
WA_E3KEKO_STR-WAERO sy-vline 
WA_E3KEKO_STR-UMRDAT sy-vline 
WA_E3KEKO_STR-BUKRS sy-vline 
WA_E3KEKO_STR-KALKL sy-vline      INTO ld_text SEPARATED BY SPACE.

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