ABAP Select data from SAP table ARUN_ITA_MSG_S into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ARUN_ITA_MSG_S
*  INTO TABLE @DATA(IT_ARUN_ITA_MSG_S2).
*--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_ARUN_ITA_MSG_S INDEX 1 INTO DATA(WA_ARUN_ITA_MSG_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ARUN_ITA_MSG_S>-AUFNR = 1.
<ARUN_ITA_MSG_S>-POSNR = 1.
<ARUN_ITA_MSG_S>-DELIV_NUMB = 1.
<ARUN_ITA_MSG_S>-KUNNR = 1.
<ARUN_ITA_MSG_S>-MATERIAL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ARUN_ITA_MSG_S-PLANT, sy-vline,
  WA_ARUN_ITA_MSG_S-ARUN_STATUS, sy-vline,
  WA_ARUN_ITA_MSG_S-REQ_IND, sy-vline,
  WA_ARUN_ITA_MSG_S-STOCK_SOURCE, sy-vline,
  WA_ARUN_ITA_MSG_S-BATCH, sy-vline,
  WA_ARUN_ITA_MSG_S-STORAGE_LOCATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ARUN_ITA_MSG_S 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_ARUN_ITA_MSG_S 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_ARUN_ITA_MSG_S INTO WA_ARUN_ITA_MSG_S.


*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_ARUN_ITA_MSG_S-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ARUN_ITA_MSG_S-AUFNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ARUN_ITA_MSG_S-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ARUN_ITA_MSG_S-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field SATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ARUN_ITA_MSG_S-SATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ARUN_ITA_MSG_S-SATNR.
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_ARUN_ITA_MSG_S_STR, 
AUFNR TYPE STRING,
POSNR TYPE STRING,
DELIV_NUMB TYPE STRING,
KUNNR TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
ARUN_STATUS TYPE STRING,
REQ_IND TYPE STRING,
STOCK_SOURCE TYPE STRING,
BATCH TYPE STRING,
STORAGE_LOCATION TYPE STRING,
PURCHORD_NUM TYPE STRING,
PURCHORD_ITEM TYPE STRING,
PURCHORD_SCH TYPE STRING,
CONFIRMATION_NO TYPE STRING,
ALLOC_QTY TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,
MSGTY TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
MSGTXT TYPE STRING,
REQUESTED_DATE TYPE STRING,
MATERIAL_AVAIL_DATE TYPE STRING,
SATNR TYPE STRING,
UEPOS TYPE STRING,
GRKOR TYPE STRING,
REREG TYPE STRING,
PERCT_ACHIEVED TYPE STRING,
PERCT_EXPECTED TYPE STRING,
OUTPUT_MESSAGE_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ARUN_ITA_MSG_S_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_ARUN_ITA_MSG_S_STR-AUFNR sy-vline 
WA_ARUN_ITA_MSG_S_STR-POSNR sy-vline 
WA_ARUN_ITA_MSG_S_STR-DELIV_NUMB sy-vline 
WA_ARUN_ITA_MSG_S_STR-KUNNR sy-vline 
WA_ARUN_ITA_MSG_S_STR-MATERIAL sy-vline 
WA_ARUN_ITA_MSG_S_STR-PLANT sy-vline 
WA_ARUN_ITA_MSG_S_STR-ARUN_STATUS sy-vline 
WA_ARUN_ITA_MSG_S_STR-REQ_IND sy-vline 
WA_ARUN_ITA_MSG_S_STR-STOCK_SOURCE sy-vline 
WA_ARUN_ITA_MSG_S_STR-BATCH sy-vline 
WA_ARUN_ITA_MSG_S_STR-STORAGE_LOCATION sy-vline 
WA_ARUN_ITA_MSG_S_STR-PURCHORD_NUM sy-vline 
WA_ARUN_ITA_MSG_S_STR-PURCHORD_ITEM sy-vline 
WA_ARUN_ITA_MSG_S_STR-PURCHORD_SCH sy-vline 
WA_ARUN_ITA_MSG_S_STR-CONFIRMATION_NO sy-vline 
WA_ARUN_ITA_MSG_S_STR-ALLOC_QTY sy-vline 
WA_ARUN_ITA_MSG_S_STR-MSGID sy-vline 
WA_ARUN_ITA_MSG_S_STR-MSGNO sy-vline 
WA_ARUN_ITA_MSG_S_STR-MSGTY sy-vline 
WA_ARUN_ITA_MSG_S_STR-MSGV1 sy-vline 
WA_ARUN_ITA_MSG_S_STR-MSGV2 sy-vline 
WA_ARUN_ITA_MSG_S_STR-MSGV3 sy-vline 
WA_ARUN_ITA_MSG_S_STR-MSGV4 sy-vline 
WA_ARUN_ITA_MSG_S_STR-MSGTXT sy-vline 
WA_ARUN_ITA_MSG_S_STR-REQUESTED_DATE sy-vline 
WA_ARUN_ITA_MSG_S_STR-MATERIAL_AVAIL_DATE sy-vline 
WA_ARUN_ITA_MSG_S_STR-SATNR sy-vline 
WA_ARUN_ITA_MSG_S_STR-UEPOS sy-vline 
WA_ARUN_ITA_MSG_S_STR-GRKOR sy-vline 
WA_ARUN_ITA_MSG_S_STR-REREG sy-vline 
WA_ARUN_ITA_MSG_S_STR-PERCT_ACHIEVED sy-vline 
WA_ARUN_ITA_MSG_S_STR-PERCT_EXPECTED sy-vline 
WA_ARUN_ITA_MSG_S_STR-OUTPUT_MESSAGE_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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