ABAP Select data from SAP table IEKEK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IEKEK
*  INTO TABLE @DATA(IT_IEKEK2).
*--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_IEKEK INDEX 1 INTO DATA(WA_IEKEK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IEKEK>-MANDT = 1.
<IEKEK>-EBELN = 1.
<IEKEK>-EBELP = 1.
<IEKEK>-ABART = 1.
<IEKEK>-ABRUF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IEKEK-ABEFZ, sy-vline,
  WA_IEKEK-ABRDT, sy-vline,
  WA_IEKEK-LFDKD, sy-vline,
  WA_IEKEK-LFNKD, sy-vline,
  WA_IEKEK-LWEDT, sy-vline,
  WA_IEKEK-LWEMG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IEKEK 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_IEKEK 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_IEKEK INTO WA_IEKEK.


*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_IEKEK-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IEKEK-EBELN.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IEKEK-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IEKEK-BASEUNIT.
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_IEKEK_STR, 
MANDT TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
ABART TYPE STRING,
ABRUF TYPE STRING,
ABEFZ TYPE STRING,
ABRDT TYPE STRING,
LFDKD TYPE STRING,
LFNKD TYPE STRING,
LWEDT TYPE STRING,
LWEMG TYPE STRING,
ABLLI TYPE STRING,
ERDAT TYPE STRING,
ABSFZ TYPE STRING,
ABFDE TYPE STRING,
ABMDE TYPE STRING,
ERUHR TYPE STRING,
ABRZT TYPE STRING,
ABHZT TYPE STRING,
RUSKZ TYPE STRING,
STAAB TYPE STRING,
WEBRL TYPE STRING,
LOADINGPOINT TYPE STRING,
VENCF TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
STPIN TYPE STRING,
BRSVZ TYPE STRING,
ERSGR TYPE STRING,
LGBZO TYPE STRING,
INIDT TYPE STRING,
INITM TYPE STRING,
WEFZMIT TYPE STRING,
DISPO TYPE STRING,
LOADCARR TYPE STRING,
T_TRGQTY TYPE STRING,
BASEUNIT TYPE STRING,
LCTXT TYPE STRING,
AKSTOPGR TYPE STRING,
UPDKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IEKEK_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_IEKEK_STR-MANDT sy-vline 
WA_IEKEK_STR-EBELN sy-vline 
WA_IEKEK_STR-EBELP sy-vline 
WA_IEKEK_STR-ABART sy-vline 
WA_IEKEK_STR-ABRUF sy-vline 
WA_IEKEK_STR-ABEFZ sy-vline 
WA_IEKEK_STR-ABRDT sy-vline 
WA_IEKEK_STR-LFDKD sy-vline 
WA_IEKEK_STR-LFNKD sy-vline 
WA_IEKEK_STR-LWEDT sy-vline 
WA_IEKEK_STR-LWEMG sy-vline 
WA_IEKEK_STR-ABLLI sy-vline 
WA_IEKEK_STR-ERDAT sy-vline 
WA_IEKEK_STR-ABSFZ sy-vline 
WA_IEKEK_STR-ABFDE sy-vline 
WA_IEKEK_STR-ABMDE sy-vline 
WA_IEKEK_STR-ERUHR sy-vline 
WA_IEKEK_STR-ABRZT sy-vline 
WA_IEKEK_STR-ABHZT sy-vline 
WA_IEKEK_STR-RUSKZ sy-vline 
WA_IEKEK_STR-STAAB sy-vline 
WA_IEKEK_STR-WEBRL sy-vline 
WA_IEKEK_STR-LOADINGPOINT sy-vline 
WA_IEKEK_STR-VENCF sy-vline 
WA_IEKEK_STR-CPUDT sy-vline 
WA_IEKEK_STR-CPUTM sy-vline 
WA_IEKEK_STR-STPIN sy-vline 
WA_IEKEK_STR-BRSVZ sy-vline 
WA_IEKEK_STR-ERSGR sy-vline 
WA_IEKEK_STR-LGBZO sy-vline 
WA_IEKEK_STR-INIDT sy-vline 
WA_IEKEK_STR-INITM sy-vline 
WA_IEKEK_STR-WEFZMIT sy-vline 
WA_IEKEK_STR-DISPO sy-vline 
WA_IEKEK_STR-LOADCARR sy-vline 
WA_IEKEK_STR-T_TRGQTY sy-vline 
WA_IEKEK_STR-BASEUNIT sy-vline 
WA_IEKEK_STR-LCTXT sy-vline 
WA_IEKEK_STR-AKSTOPGR sy-vline 
WA_IEKEK_STR-UPDKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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