ABAP Select data from SAP table E3EDK01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E3EDK01 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 E3EDK01. 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 E3EDK01 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_E3EDK01 TYPE STANDARD TABLE OF E3EDK01,
      WA_E3EDK01 TYPE E3EDK01,
      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: <E3EDK01> TYPE E3EDK01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E3EDK01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E3EDK01
  INTO TABLE IT_E3EDK01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E3EDK01
*  INTO TABLE @DATA(IT_E3EDK012).
*--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_E3EDK01 INDEX 1 INTO DATA(WA_E3EDK012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E3EDK01 ASSIGNING <E3EDK01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E3EDK01>-ACTION = 1.
<E3EDK01>-KZABS = 1.
<E3EDK01>-CURCY = 1.
<E3EDK01>-HWAER = 1.
<E3EDK01>-WKURS = 1.

ENDLOOP.

LOOP AT IT_E3EDK01 INTO WA_E3EDK01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E3EDK01-ZTERM, sy-vline,
  WA_E3EDK01-KUNDEUINR, sy-vline,
  WA_E3EDK01-EIGENUINR, sy-vline,
  WA_E3EDK01-BSART, sy-vline,
  WA_E3EDK01-BELNR, sy-vline,
  WA_E3EDK01-NTGEW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E3EDK01 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_E3EDK01 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_E3EDK01 INTO WA_E3EDK01.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_E3EDK01_STR, 
ACTION TYPE STRING,
KZABS TYPE STRING,
CURCY TYPE STRING,
HWAER TYPE STRING,
WKURS TYPE STRING,
ZTERM TYPE STRING,
KUNDEUINR TYPE STRING,
EIGENUINR TYPE STRING,
BSART TYPE STRING,
BELNR TYPE STRING,
NTGEW TYPE STRING,
BRGEW TYPE STRING,
GEWEI TYPE STRING,
FKART_RL TYPE STRING,
ABLAD TYPE STRING,
BSTZD TYPE STRING,
VSART TYPE STRING,
VSART_BEZ TYPE STRING,
RECIPNT_NO TYPE STRING,
KZAZU TYPE STRING,
AUTLF TYPE STRING,
AUGRU TYPE STRING,
AUGRU_BEZ TYPE STRING,
ABRVW TYPE STRING,
ABRVW_BEZ TYPE STRING,
FKTYP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E3EDK01_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_E3EDK01_STR-ACTION sy-vline 
WA_E3EDK01_STR-KZABS sy-vline 
WA_E3EDK01_STR-CURCY sy-vline 
WA_E3EDK01_STR-HWAER sy-vline 
WA_E3EDK01_STR-WKURS sy-vline 
WA_E3EDK01_STR-ZTERM sy-vline 
WA_E3EDK01_STR-KUNDEUINR sy-vline 
WA_E3EDK01_STR-EIGENUINR sy-vline 
WA_E3EDK01_STR-BSART sy-vline 
WA_E3EDK01_STR-BELNR sy-vline 
WA_E3EDK01_STR-NTGEW sy-vline 
WA_E3EDK01_STR-BRGEW sy-vline 
WA_E3EDK01_STR-GEWEI sy-vline 
WA_E3EDK01_STR-FKART_RL sy-vline 
WA_E3EDK01_STR-ABLAD sy-vline 
WA_E3EDK01_STR-BSTZD sy-vline 
WA_E3EDK01_STR-VSART sy-vline 
WA_E3EDK01_STR-VSART_BEZ sy-vline 
WA_E3EDK01_STR-RECIPNT_NO sy-vline 
WA_E3EDK01_STR-KZAZU sy-vline 
WA_E3EDK01_STR-AUTLF sy-vline 
WA_E3EDK01_STR-AUGRU sy-vline 
WA_E3EDK01_STR-AUGRU_BEZ sy-vline 
WA_E3EDK01_STR-ABRVW sy-vline 
WA_E3EDK01_STR-ABRVW_BEZ sy-vline 
WA_E3EDK01_STR-FKTYP sy-vline      INTO ld_text SEPARATED BY SPACE.

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