ABAP Select data from SAP table EVAL_IV_RES_ITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EVAL_IV_RES_ITM
*  INTO TABLE @DATA(IT_EVAL_IV_RES_ITM2).
*--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_EVAL_IV_RES_ITM INDEX 1 INTO DATA(WA_EVAL_IV_RES_ITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EVAL_IV_RES_ITM>-MANDT = 1.
<EVAL_IV_RES_ITM>-VE_GUID = 1.
<EVAL_IV_RES_ITM>-BUZEI = 1.
<EVAL_IV_RES_ITM>-KRIT = 1.
<EVAL_IV_RES_ITM>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EVAL_IV_RES_ITM-LFSEG, sy-vline,
  WA_EVAL_IV_RES_ITM-BELNR, sy-vline,
  WA_EVAL_IV_RES_ITM-GJAHR, sy-vline,
  WA_EVAL_IV_RES_ITM-VE_KAPPL, sy-vline,
  WA_EVAL_IV_RES_ITM-VE_SURVEY, sy-vline,
  WA_EVAL_IV_RES_ITM-VE_QUESTNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EVAL_IV_RES_ITM 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_EVAL_IV_RES_ITM 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_EVAL_IV_RES_ITM INTO WA_EVAL_IV_RES_ITM.


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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_EVAL_IV_RES_ITM-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EVAL_IV_RES_ITM-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EVAL_IV_RES_ITM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EVAL_IV_RES_ITM-MATNR.
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_EVAL_IV_RES_ITM_STR, 
MANDT TYPE STRING,
VE_GUID TYPE STRING,
BUZEI TYPE STRING,
KRIT TYPE STRING,
BUKRS TYPE STRING,
LFSEG TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
VE_KAPPL TYPE STRING,
VE_SURVEY TYPE STRING,
VE_QUESTNR TYPE STRING,
NOTE TYPE STRING,
VE_UPDATE TYPE STRING,
TIMST TYPE STRING,
DATE_VE TYPE STRING,
TIME_VE TYPE STRING,
POSTYP TYPE STRING,
EKORG TYPE STRING,
LIFNR TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EVAL_IV_RES_ITM_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_EVAL_IV_RES_ITM_STR-MANDT sy-vline 
WA_EVAL_IV_RES_ITM_STR-VE_GUID sy-vline 
WA_EVAL_IV_RES_ITM_STR-BUZEI sy-vline 
WA_EVAL_IV_RES_ITM_STR-KRIT sy-vline 
WA_EVAL_IV_RES_ITM_STR-BUKRS sy-vline 
WA_EVAL_IV_RES_ITM_STR-LFSEG sy-vline 
WA_EVAL_IV_RES_ITM_STR-BELNR sy-vline 
WA_EVAL_IV_RES_ITM_STR-GJAHR sy-vline 
WA_EVAL_IV_RES_ITM_STR-VE_KAPPL sy-vline 
WA_EVAL_IV_RES_ITM_STR-VE_SURVEY sy-vline 
WA_EVAL_IV_RES_ITM_STR-VE_QUESTNR sy-vline 
WA_EVAL_IV_RES_ITM_STR-NOTE sy-vline 
WA_EVAL_IV_RES_ITM_STR-VE_UPDATE sy-vline 
WA_EVAL_IV_RES_ITM_STR-TIMST sy-vline 
WA_EVAL_IV_RES_ITM_STR-DATE_VE sy-vline 
WA_EVAL_IV_RES_ITM_STR-TIME_VE sy-vline 
WA_EVAL_IV_RES_ITM_STR-POSTYP sy-vline 
WA_EVAL_IV_RES_ITM_STR-EKORG sy-vline 
WA_EVAL_IV_RES_ITM_STR-LIFNR sy-vline 
WA_EVAL_IV_RES_ITM_STR-EBELN sy-vline 
WA_EVAL_IV_RES_ITM_STR-EBELP sy-vline 
WA_EVAL_IV_RES_ITM_STR-MATNR sy-vline 
WA_EVAL_IV_RES_ITM_STR-WERKS sy-vline      INTO ld_text SEPARATED BY SPACE.

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