ABAP Select data from SAP table E2KEFXA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E2KEFXA 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 E2KEFXA. 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 E2KEFXA 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_E2KEFXA TYPE STANDARD TABLE OF E2KEFXA,
      WA_E2KEFXA TYPE E2KEFXA,
      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: <E2KEFXA> TYPE E2KEFXA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E2KEFXA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E2KEFXA
  INTO TABLE IT_E2KEFXA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E2KEFXA
*  INTO TABLE @DATA(IT_E2KEFXA2).
*--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_E2KEFXA INDEX 1 INTO DATA(WA_E2KEFXA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E2KEFXA ASSIGNING <E2KEFXA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E2KEFXA>-PALEDGER = 1.
<E2KEFXA>-VRGAR = 1.
<E2KEFXA>-VERSI = 1.
<E2KEFXA>-PERIO = 1.
<E2KEFXA>-PAOBJNR = 1.

ENDLOOP.

LOOP AT IT_E2KEFXA INTO WA_E2KEFXA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E2KEFXA-PASUBNR, sy-vline,
  WA_E2KEFXA-BELNR, sy-vline,
  WA_E2KEFXA-POSNR, sy-vline,
  WA_E2KEFXA-HZDAT, sy-vline,
  WA_E2KEFXA-USNAM, sy-vline,
  WA_E2KEFXA-GJAHR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E2KEFXA 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_E2KEFXA 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_E2KEFXA INTO WA_E2KEFXA.


*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 LEDBO, internal->external for field PALEDGER
CALL FUNCTION 'CONVERSION_EXIT_LEDBO_OUTPUT'
  EXPORTING
    input =                      WA_E2KEFXA-PALEDGER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2KEFXA-PALEDGER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2KEFXA-VERSI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2KEFXA-VERSI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KNDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2KEFXA-KNDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2KEFXA-KNDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field ARTNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_E2KEFXA-ARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2KEFXA-ARTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KAUFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2KEFXA-KAUFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2KEFXA-KAUFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RKAUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2KEFXA-RKAUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2KEFXA-RKAUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SKOST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2KEFXA-SKOST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2KEFXA-SKOST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KSTAR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2KEFXA-KSTAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2KEFXA-KSTAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2KEFXA-RBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2KEFXA-RBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2KEFXA-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2KEFXA-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PPRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E2KEFXA-PPRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2KEFXA-PPRCTR.
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_E2KEFXA_STR, 
PALEDGER TYPE STRING,
VRGAR TYPE STRING,
VERSI TYPE STRING,
PERIO TYPE STRING,
PAOBJNR TYPE STRING,
PASUBNR TYPE STRING,
BELNR TYPE STRING,
POSNR TYPE STRING,
HZDAT TYPE STRING,
USNAM TYPE STRING,
GJAHR TYPE STRING,
PERDE TYPE STRING,
WADAT TYPE STRING,
FADAT TYPE STRING,
BUDAT TYPE STRING,
ALTPERIO TYPE STRING,
PAPAOBJNR TYPE STRING,
PAPASUBNR TYPE STRING,
KNDNR TYPE STRING,
ARTNR TYPE STRING,
FKART TYPE STRING,
FRWAE TYPE STRING,
KURSF TYPE STRING,
KURSBK TYPE STRING,
KURSKZ TYPE STRING,
KAUFN TYPE STRING,
KDPOS TYPE STRING,
RKAUFNR TYPE STRING,
SKOST TYPE STRING,
BUKRS TYPE STRING,
KOKRS TYPE STRING,
WERKS TYPE STRING,
GSBER TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
HRKFT TYPE STRING,
PLIKZ TYPE STRING,
KSTAR TYPE STRING,
PSPNR TYPE STRING,
KSTRG TYPE STRING,
RBELN TYPE STRING,
RPOSN TYPE STRING,
PRCTR TYPE STRING,
PPRCTR TYPE STRING,
RKESTATU TYPE STRING,
TIMESTMP TYPE STRING,
COPA_AWTYP TYPE STRING,
COPA_AWORG TYPE STRING,
COPA_BWZPT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E2KEFXA_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_E2KEFXA_STR-PALEDGER sy-vline 
WA_E2KEFXA_STR-VRGAR sy-vline 
WA_E2KEFXA_STR-VERSI sy-vline 
WA_E2KEFXA_STR-PERIO sy-vline 
WA_E2KEFXA_STR-PAOBJNR sy-vline 
WA_E2KEFXA_STR-PASUBNR sy-vline 
WA_E2KEFXA_STR-BELNR sy-vline 
WA_E2KEFXA_STR-POSNR sy-vline 
WA_E2KEFXA_STR-HZDAT sy-vline 
WA_E2KEFXA_STR-USNAM sy-vline 
WA_E2KEFXA_STR-GJAHR sy-vline 
WA_E2KEFXA_STR-PERDE sy-vline 
WA_E2KEFXA_STR-WADAT sy-vline 
WA_E2KEFXA_STR-FADAT sy-vline 
WA_E2KEFXA_STR-BUDAT sy-vline 
WA_E2KEFXA_STR-ALTPERIO sy-vline 
WA_E2KEFXA_STR-PAPAOBJNR sy-vline 
WA_E2KEFXA_STR-PAPASUBNR sy-vline 
WA_E2KEFXA_STR-KNDNR sy-vline 
WA_E2KEFXA_STR-ARTNR sy-vline 
WA_E2KEFXA_STR-FKART sy-vline 
WA_E2KEFXA_STR-FRWAE sy-vline 
WA_E2KEFXA_STR-KURSF sy-vline 
WA_E2KEFXA_STR-KURSBK sy-vline 
WA_E2KEFXA_STR-KURSKZ sy-vline 
WA_E2KEFXA_STR-KAUFN sy-vline 
WA_E2KEFXA_STR-KDPOS sy-vline 
WA_E2KEFXA_STR-RKAUFNR sy-vline 
WA_E2KEFXA_STR-SKOST sy-vline 
WA_E2KEFXA_STR-BUKRS sy-vline 
WA_E2KEFXA_STR-KOKRS sy-vline 
WA_E2KEFXA_STR-WERKS sy-vline 
WA_E2KEFXA_STR-GSBER sy-vline 
WA_E2KEFXA_STR-VKORG sy-vline 
WA_E2KEFXA_STR-VTWEG sy-vline 
WA_E2KEFXA_STR-SPART sy-vline 
WA_E2KEFXA_STR-HRKFT sy-vline 
WA_E2KEFXA_STR-PLIKZ sy-vline 
WA_E2KEFXA_STR-KSTAR sy-vline 
WA_E2KEFXA_STR-PSPNR sy-vline 
WA_E2KEFXA_STR-KSTRG sy-vline 
WA_E2KEFXA_STR-RBELN sy-vline 
WA_E2KEFXA_STR-RPOSN sy-vline 
WA_E2KEFXA_STR-PRCTR sy-vline 
WA_E2KEFXA_STR-PPRCTR sy-vline 
WA_E2KEFXA_STR-RKESTATU sy-vline 
WA_E2KEFXA_STR-TIMESTMP sy-vline 
WA_E2KEFXA_STR-COPA_AWTYP sy-vline 
WA_E2KEFXA_STR-COPA_AWORG sy-vline 
WA_E2KEFXA_STR-COPA_BWZPT sy-vline      INTO ld_text SEPARATED BY SPACE.

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