ABAP Select data from SAP table EDOC_IN_ITC04_M2JW into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EDOC_IN_ITC04_M2JW 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 EDOC_IN_ITC04_M2JW. 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 EDOC_IN_ITC04_M2JW 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_EDOC_IN_ITC04_M2JW TYPE STANDARD TABLE OF EDOC_IN_ITC04_M2JW,
      WA_EDOC_IN_ITC04_M2JW TYPE EDOC_IN_ITC04_M2JW,
      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: <EDOC_IN_ITC04_M2JW> TYPE EDOC_IN_ITC04_M2JW.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_EDOC_IN_ITC04_M2JW.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM EDOC_IN_ITC04_M2JW
  INTO TABLE IT_EDOC_IN_ITC04_M2JW.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EDOC_IN_ITC04_M2JW
*  INTO TABLE @DATA(IT_EDOC_IN_ITC04_M2JW2).
*--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_EDOC_IN_ITC04_M2JW INDEX 1 INTO DATA(WA_EDOC_IN_ITC04_M2JW2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_EDOC_IN_ITC04_M2JW ASSIGNING <EDOC_IN_ITC04_M2JW>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EDOC_IN_ITC04_M2JW>-FLAG = 1.
<EDOC_IN_ITC04_M2JW>-GSTIN = 1.
<EDOC_IN_ITC04_M2JW>-BUSINESSDIV = 1.
<EDOC_IN_ITC04_M2JW>-CUSTOMERCODE = 1.
<EDOC_IN_ITC04_M2JW>-EWAYBILLNUM = 1.

ENDLOOP.

LOOP AT IT_EDOC_IN_ITC04_M2JW INTO WA_EDOC_IN_ITC04_M2JW.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EDOC_IN_ITC04_M2JW-EWAYBILLGENDATE, sy-vline,
  WA_EDOC_IN_ITC04_M2JW-EWAYBILLVALIDITYDATE, sy-vline,
  WA_EDOC_IN_ITC04_M2JW-CUSTOMERREGION, sy-vline,
  WA_EDOC_IN_ITC04_M2JW-CHALLANAMOUNT, sy-vline,
  WA_EDOC_IN_ITC04_M2JW-COMPANYCODE, sy-vline,
  WA_EDOC_IN_ITC04_M2JW-FP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EDOC_IN_ITC04_M2JW 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_EDOC_IN_ITC04_M2JW 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_EDOC_IN_ITC04_M2JW INTO WA_EDOC_IN_ITC04_M2JW.


*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_EDOC_IN_ITC04_M2JW_STR, 
FLAG TYPE STRING,
GSTIN TYPE STRING,
BUSINESSDIV TYPE STRING,
CUSTOMERCODE TYPE STRING,
EWAYBILLNUM TYPE STRING,
EWAYBILLGENDATE TYPE STRING,
EWAYBILLVALIDITYDATE TYPE STRING,
CUSTOMERREGION TYPE STRING,
CHALLANAMOUNT TYPE STRING,
COMPANYCODE TYPE STRING,
FP TYPE STRING,
AUTHOBJECT TYPE STRING,
CTIN TYPE STRING,
JWSTCD TYPE STRING,
CHNUM TYPE STRING,
INTNUM TYPE STRING,
CHDT TYPE STRING,
EXTENSION TYPE STRING,
M2JWITMS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EDOC_IN_ITC04_M2JW_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_EDOC_IN_ITC04_M2JW_STR-FLAG sy-vline 
WA_EDOC_IN_ITC04_M2JW_STR-GSTIN sy-vline 
WA_EDOC_IN_ITC04_M2JW_STR-BUSINESSDIV sy-vline 
WA_EDOC_IN_ITC04_M2JW_STR-CUSTOMERCODE sy-vline 
WA_EDOC_IN_ITC04_M2JW_STR-EWAYBILLNUM sy-vline 
WA_EDOC_IN_ITC04_M2JW_STR-EWAYBILLGENDATE sy-vline 
WA_EDOC_IN_ITC04_M2JW_STR-EWAYBILLVALIDITYDATE sy-vline 
WA_EDOC_IN_ITC04_M2JW_STR-CUSTOMERREGION sy-vline 
WA_EDOC_IN_ITC04_M2JW_STR-CHALLANAMOUNT sy-vline 
WA_EDOC_IN_ITC04_M2JW_STR-COMPANYCODE sy-vline 
WA_EDOC_IN_ITC04_M2JW_STR-FP sy-vline 
WA_EDOC_IN_ITC04_M2JW_STR-AUTHOBJECT sy-vline 
WA_EDOC_IN_ITC04_M2JW_STR-CTIN sy-vline 
WA_EDOC_IN_ITC04_M2JW_STR-JWSTCD sy-vline 
WA_EDOC_IN_ITC04_M2JW_STR-CHNUM sy-vline 
WA_EDOC_IN_ITC04_M2JW_STR-INTNUM sy-vline 
WA_EDOC_IN_ITC04_M2JW_STR-CHDT sy-vline 
WA_EDOC_IN_ITC04_M2JW_STR-EXTENSION sy-vline 
WA_EDOC_IN_ITC04_M2JW_STR-M2JWITMS sy-vline      INTO ld_text SEPARATED BY SPACE.

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