ABAP Select data from SAP table J_1IEXCDEF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_1IEXCDEF 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 J_1IEXCDEF. 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 J_1IEXCDEF 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_J_1IEXCDEF TYPE STANDARD TABLE OF J_1IEXCDEF,
      WA_J_1IEXCDEF TYPE J_1IEXCDEF,
      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: <J_1IEXCDEF> TYPE J_1IEXCDEF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1IEXCDEF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1IEXCDEF
  INTO TABLE IT_J_1IEXCDEF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1IEXCDEF
*  INTO TABLE @DATA(IT_J_1IEXCDEF2).
*--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_J_1IEXCDEF INDEX 1 INTO DATA(WA_J_1IEXCDEF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1IEXCDEF ASSIGNING <J_1IEXCDEF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1IEXCDEF>-MANDT = 1.
<J_1IEXCDEF>-J_1ITAXCAL = 1.
<J_1IEXCDEF>-J_1ICVDTYP = 1.
<J_1IEXCDEF>-J_1ITXCODE = 1.
<J_1IEXCDEF>-J_1ITXJCD = 1.

ENDLOOP.

LOOP AT IT_J_1IEXCDEF INTO WA_J_1IEXCDEF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1IEXCDEF-J_1ICBEDAP, sy-vline,
  WA_J_1IEXCDEF-J_1ICSEDAP, sy-vline,
  WA_J_1IEXCDEF-J_1ICAEDAP, sy-vline,
  WA_J_1IEXCDEF-J_1ICBEDAR, sy-vline,
  WA_J_1IEXCDEF-J_1ICSEDAR, sy-vline,
  WA_J_1IEXCDEF-J_1ICAEDAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1IEXCDEF 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_J_1IEXCDEF 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_J_1IEXCDEF INTO WA_J_1IEXCDEF.


*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_J_1IEXCDEF_STR, 
MANDT TYPE STRING,
J_1ITAXCAL TYPE STRING,
J_1ICVDTYP TYPE STRING,
J_1ITXCODE TYPE STRING,
J_1ITXJCD TYPE STRING,
J_1ICBEDAP TYPE STRING,
J_1ICSEDAP TYPE STRING,
J_1ICAEDAP TYPE STRING,
J_1ICBEDAR TYPE STRING,
J_1ICSEDAR TYPE STRING,
J_1ICAEDAR TYPE STRING,
J_1ICCESAR TYPE STRING,
J_1ICBEDP TYPE STRING,
J_1ICAEDP TYPE STRING,
J_1ICSEDP TYPE STRING,
J_1ICCESP TYPE STRING,
J_1ICNCCDAP TYPE STRING,
J_1ICNCCDAR TYPE STRING,
J_1ICNEDP TYPE STRING,
J_1ICECSAP TYPE STRING,
J_1ICECSAR TYPE STRING,
J_1ICECSP TYPE STRING,
J_1IECVDTP TYPE STRING,
J_1ICADCAP TYPE STRING,
J_1ICAT1AP TYPE STRING,
J_1ICAT1AR TYPE STRING,
J_1ICAT1P TYPE STRING,
J_1ICAT2AP TYPE STRING,
J_1ICAT2AR TYPE STRING,
J_1ICAT2P TYPE STRING,
J_1ICAT3AP TYPE STRING,
J_1ICAT3AR TYPE STRING,
J_1ICAT3P TYPE STRING,
SEROFFT TYPE STRING,
SERECSOFFT TYPE STRING,
SERAT1OFFT TYPE STRING,
SERAT2OFFT TYPE STRING,
SERAT3OFFT TYPE STRING,
KKCOFFT TYPE STRING,
SBCOFFT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1IEXCDEF_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_J_1IEXCDEF_STR-MANDT sy-vline 
WA_J_1IEXCDEF_STR-J_1ITAXCAL sy-vline 
WA_J_1IEXCDEF_STR-J_1ICVDTYP sy-vline 
WA_J_1IEXCDEF_STR-J_1ITXCODE sy-vline 
WA_J_1IEXCDEF_STR-J_1ITXJCD sy-vline 
WA_J_1IEXCDEF_STR-J_1ICBEDAP sy-vline 
WA_J_1IEXCDEF_STR-J_1ICSEDAP sy-vline 
WA_J_1IEXCDEF_STR-J_1ICAEDAP sy-vline 
WA_J_1IEXCDEF_STR-J_1ICBEDAR sy-vline 
WA_J_1IEXCDEF_STR-J_1ICSEDAR sy-vline 
WA_J_1IEXCDEF_STR-J_1ICAEDAR sy-vline 
WA_J_1IEXCDEF_STR-J_1ICCESAR sy-vline 
WA_J_1IEXCDEF_STR-J_1ICBEDP sy-vline 
WA_J_1IEXCDEF_STR-J_1ICAEDP sy-vline 
WA_J_1IEXCDEF_STR-J_1ICSEDP sy-vline 
WA_J_1IEXCDEF_STR-J_1ICCESP sy-vline 
WA_J_1IEXCDEF_STR-J_1ICNCCDAP sy-vline 
WA_J_1IEXCDEF_STR-J_1ICNCCDAR sy-vline 
WA_J_1IEXCDEF_STR-J_1ICNEDP sy-vline 
WA_J_1IEXCDEF_STR-J_1ICECSAP sy-vline 
WA_J_1IEXCDEF_STR-J_1ICECSAR sy-vline 
WA_J_1IEXCDEF_STR-J_1ICECSP sy-vline 
WA_J_1IEXCDEF_STR-J_1IECVDTP sy-vline 
WA_J_1IEXCDEF_STR-J_1ICADCAP sy-vline 
WA_J_1IEXCDEF_STR-J_1ICAT1AP sy-vline 
WA_J_1IEXCDEF_STR-J_1ICAT1AR sy-vline 
WA_J_1IEXCDEF_STR-J_1ICAT1P sy-vline 
WA_J_1IEXCDEF_STR-J_1ICAT2AP sy-vline 
WA_J_1IEXCDEF_STR-J_1ICAT2AR sy-vline 
WA_J_1IEXCDEF_STR-J_1ICAT2P sy-vline 
WA_J_1IEXCDEF_STR-J_1ICAT3AP sy-vline 
WA_J_1IEXCDEF_STR-J_1ICAT3AR sy-vline 
WA_J_1IEXCDEF_STR-J_1ICAT3P sy-vline 
WA_J_1IEXCDEF_STR-SEROFFT sy-vline 
WA_J_1IEXCDEF_STR-SERECSOFFT sy-vline 
WA_J_1IEXCDEF_STR-SERAT1OFFT sy-vline 
WA_J_1IEXCDEF_STR-SERAT2OFFT sy-vline 
WA_J_1IEXCDEF_STR-SERAT3OFFT sy-vline 
WA_J_1IEXCDEF_STR-KKCOFFT sy-vline 
WA_J_1IEXCDEF_STR-SBCOFFT sy-vline      INTO ld_text SEPARATED BY SPACE.

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