ABAP Select data from SAP table E3EDPAG into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E3EDPAG 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 E3EDPAG. 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 E3EDPAG 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_E3EDPAG TYPE STANDARD TABLE OF E3EDPAG,
      WA_E3EDPAG TYPE E3EDPAG,
      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: <E3EDPAG> TYPE E3EDPAG.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E3EDPAG.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E3EDPAG
  INTO TABLE IT_E3EDPAG.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E3EDPAG
*  INTO TABLE @DATA(IT_E3EDPAG2).
*--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_E3EDPAG INDEX 1 INTO DATA(WA_E3EDPAG2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E3EDPAG ASSIGNING <E3EDPAG>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E3EDPAG>-GEGRU = 1.
<E3EDPAG>-ALNUM = 1.
<E3EDPAG>-EMBGR = 1.
<E3EDPAG>-GEART = 1.
<E3EDPAG>-GENNR = 1.

ENDLOOP.

LOOP AT IT_E3EDPAG INTO WA_E3EDPAG.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E3EDPAG-EXKUA, sy-vline,
  WA_E3EDPAG-EXWAE, sy-vline,
  WA_E3EDPAG-MODCO, sy-vline,
  WA_E3EDPAG-EXGEN, sy-vline,
  WA_E3EDPAG-LGRUP, sy-vline,
  WA_E3EDPAG-BEZEG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E3EDPAG 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_E3EDPAG 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_E3EDPAG INTO WA_E3EDPAG.


*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 GENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3EDPAG-GENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3EDPAG-GENNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field EXKUA
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_E3EDPAG-EXKUA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3EDPAG-EXKUA.
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_E3EDPAG_STR, 
GEGRU TYPE STRING,
ALNUM TYPE STRING,
EMBGR TYPE STRING,
GEART TYPE STRING,
GENNR TYPE STRING,
EXKUA TYPE STRING,
EXWAE TYPE STRING,
MODCO TYPE STRING,
EXGEN TYPE STRING,
LGRUP TYPE STRING,
BEZEG TYPE STRING,
BEAL1 TYPE STRING,
BEAL2 TYPE STRING,
BEAL3 TYPE STRING,
BEAL4 TYPE STRING,
BEAL5 TYPE STRING,
BEAL6 TYPE STRING,
LEGRO TYPE STRING,
BEGEA TYPE STRING,
BELAN TYPE STRING,
GENDA TYPE STRING,
GANDA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E3EDPAG_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_E3EDPAG_STR-GEGRU sy-vline 
WA_E3EDPAG_STR-ALNUM sy-vline 
WA_E3EDPAG_STR-EMBGR sy-vline 
WA_E3EDPAG_STR-GEART sy-vline 
WA_E3EDPAG_STR-GENNR sy-vline 
WA_E3EDPAG_STR-EXKUA sy-vline 
WA_E3EDPAG_STR-EXWAE sy-vline 
WA_E3EDPAG_STR-MODCO sy-vline 
WA_E3EDPAG_STR-EXGEN sy-vline 
WA_E3EDPAG_STR-LGRUP sy-vline 
WA_E3EDPAG_STR-BEZEG sy-vline 
WA_E3EDPAG_STR-BEAL1 sy-vline 
WA_E3EDPAG_STR-BEAL2 sy-vline 
WA_E3EDPAG_STR-BEAL3 sy-vline 
WA_E3EDPAG_STR-BEAL4 sy-vline 
WA_E3EDPAG_STR-BEAL5 sy-vline 
WA_E3EDPAG_STR-BEAL6 sy-vline 
WA_E3EDPAG_STR-LEGRO sy-vline 
WA_E3EDPAG_STR-BEGEA sy-vline 
WA_E3EDPAG_STR-BELAN sy-vline 
WA_E3EDPAG_STR-GENDA sy-vline 
WA_E3EDPAG_STR-GANDA sy-vline      INTO ld_text SEPARATED BY SPACE.

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