ABAP Select data from SAP table E3SAFKL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E3SAFKL 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 E3SAFKL. 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 E3SAFKL 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_E3SAFKL TYPE STANDARD TABLE OF E3SAFKL,
      WA_E3SAFKL TYPE E3SAFKL,
      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: <E3SAFKL> TYPE E3SAFKL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E3SAFKL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E3SAFKL
  INTO TABLE IT_E3SAFKL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E3SAFKL
*  INTO TABLE @DATA(IT_E3SAFKL2).
*--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_E3SAFKL INDEX 1 INTO DATA(WA_E3SAFKL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E3SAFKL ASSIGNING <E3SAFKL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E3SAFKL>-AUFNR = 1.
<E3SAFKL>-ALNAG = 1.
<E3SAFKL>-APLAL = 1.
<E3SAFKL>-ALORT = 1.
<E3SAFKL>-ARBID = 1.

ENDLOOP.

LOOP AT IT_E3SAFKL INTO WA_E3SAFKL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E3SAFKL-BSTMA, sy-vline,
  WA_E3SAFKL-BSTMI, sy-vline,
  WA_E3SAFKL-DISLS, sy-vline,
  WA_E3SAFKL-DISPO, sy-vline,
  WA_E3SAFKL-ENDAY, sy-vline,
  WA_E3SAFKL-GAMNG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E3SAFKL 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_E3SAFKL 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_E3SAFKL INTO WA_E3SAFKL.


*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 AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3SAFKL-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3SAFKL-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ALNAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3SAFKL-ALNAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3SAFKL-ALNAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field APLAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3SAFKL-APLAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3SAFKL-APLAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_E3SAFKL-GMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3SAFKL-GMEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN5, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN5_OUTPUT'
  EXPORTING
    input =                      WA_E3SAFKL-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3SAFKL-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLNNG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3SAFKL-PLNNG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3SAFKL-PLNNG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3SAFKL-PLNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3SAFKL-PLNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field STLAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3SAFKL-STLAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3SAFKL-STLAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR_LONG
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_E3SAFKL-MATNR_LONG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3SAFKL-MATNR_LONG.
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_E3SAFKL_STR, 
AUFNR TYPE STRING,
ALNAG TYPE STRING,
APLAL TYPE STRING,
ALORT TYPE STRING,
ARBID TYPE STRING,
BSTMA TYPE STRING,
BSTMI TYPE STRING,
DISLS TYPE STRING,
DISPO TYPE STRING,
ENDAY TYPE STRING,
GAMNG TYPE STRING,
GASMG TYPE STRING,
GMEIN TYPE STRING,
KTEXT TYPE STRING,
MATNR TYPE STRING,
MDV01 TYPE STRING,
MDV02 TYPE STRING,
PERIO TYPE STRING,
PLNNG TYPE STRING,
PLNNR TYPE STRING,
PLNTY TYPE STRING,
PLTYG TYPE STRING,
RGEKZ TYPE STRING,
STDAY TYPE STRING,
STLAL TYPE STRING,
STLAN TYPE STRING,
VERID TYPE STRING,
VERTO TYPE STRING,
WERKS TYPE STRING,
MATNR_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E3SAFKL_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_E3SAFKL_STR-AUFNR sy-vline 
WA_E3SAFKL_STR-ALNAG sy-vline 
WA_E3SAFKL_STR-APLAL sy-vline 
WA_E3SAFKL_STR-ALORT sy-vline 
WA_E3SAFKL_STR-ARBID sy-vline 
WA_E3SAFKL_STR-BSTMA sy-vline 
WA_E3SAFKL_STR-BSTMI sy-vline 
WA_E3SAFKL_STR-DISLS sy-vline 
WA_E3SAFKL_STR-DISPO sy-vline 
WA_E3SAFKL_STR-ENDAY sy-vline 
WA_E3SAFKL_STR-GAMNG sy-vline 
WA_E3SAFKL_STR-GASMG sy-vline 
WA_E3SAFKL_STR-GMEIN sy-vline 
WA_E3SAFKL_STR-KTEXT sy-vline 
WA_E3SAFKL_STR-MATNR sy-vline 
WA_E3SAFKL_STR-MDV01 sy-vline 
WA_E3SAFKL_STR-MDV02 sy-vline 
WA_E3SAFKL_STR-PERIO sy-vline 
WA_E3SAFKL_STR-PLNNG sy-vline 
WA_E3SAFKL_STR-PLNNR sy-vline 
WA_E3SAFKL_STR-PLNTY sy-vline 
WA_E3SAFKL_STR-PLTYG sy-vline 
WA_E3SAFKL_STR-RGEKZ sy-vline 
WA_E3SAFKL_STR-STDAY sy-vline 
WA_E3SAFKL_STR-STLAL sy-vline 
WA_E3SAFKL_STR-STLAN sy-vline 
WA_E3SAFKL_STR-VERID sy-vline 
WA_E3SAFKL_STR-VERTO sy-vline 
WA_E3SAFKL_STR-WERKS sy-vline 
WA_E3SAFKL_STR-MATNR_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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