ABAP Select data from SAP table MEV_S_AD_ITEM_SD_WORK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MEV_S_AD_ITEM_SD_WORK
*  INTO TABLE @DATA(IT_MEV_S_AD_ITEM_SD_WORK2).
*--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_MEV_S_AD_ITEM_SD_WORK INDEX 1 INTO DATA(WA_MEV_S_AD_ITEM_SD_WORK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MEV_S_AD_ITEM_SD_WORK>-GUID_ITEM = 1.
<MEV_S_AD_ITEM_SD_WORK>-GUID_ROOT = 1.
<MEV_S_AD_ITEM_SD_WORK>-ITEMNR = 1.
<MEV_S_AD_ITEM_SD_WORK>-MATNR = 1.
<MEV_S_AD_ITEM_SD_WORK>-MATKL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MEV_S_AD_ITEM_SD_WORK-CHARG, sy-vline,
  WA_MEV_S_AD_ITEM_SD_WORK-WERKS, sy-vline,
  WA_MEV_S_AD_ITEM_SD_WORK-VAL_DATE, sy-vline,
  WA_MEV_S_AD_ITEM_SD_WORK-ACCRUAL_AMOUNT, sy-vline,
  WA_MEV_S_AD_ITEM_SD_WORK-ANTICIP_AMOUNT, sy-vline,
  WA_MEV_S_AD_ITEM_SD_WORK-POSTED_AMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MEV_S_AD_ITEM_SD_WORK 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_MEV_S_AD_ITEM_SD_WORK 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_MEV_S_AD_ITEM_SD_WORK INTO WA_MEV_S_AD_ITEM_SD_WORK.


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

*Conversion exit CUNIT, internal->external for field ORDER_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MEV_S_AD_ITEM_SD_WORK-ORDER_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MEV_S_AD_ITEM_SD_WORK-ORDER_UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTMP, internal->external for field CRTSP
CALL FUNCTION 'CONVERSION_EXIT_TSTMP_OUTPUT'
  EXPORTING
    input =                      WA_MEV_S_AD_ITEM_SD_WORK-CRTSP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MEV_S_AD_ITEM_SD_WORK-CRTSP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTMP, internal->external for field CHTSP
CALL FUNCTION 'CONVERSION_EXIT_TSTMP_OUTPUT'
  EXPORTING
    input =                      WA_MEV_S_AD_ITEM_SD_WORK-CHTSP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MEV_S_AD_ITEM_SD_WORK-CHTSP.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field KUNAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MEV_S_AD_ITEM_SD_WORK-KUNAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MEV_S_AD_ITEM_SD_WORK-KUNAG.
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_MEV_S_AD_ITEM_SD_WORK_STR, 
GUID_ITEM TYPE STRING,
GUID_ROOT TYPE STRING,
ITEMNR TYPE STRING,
MATNR TYPE STRING,
MATKL TYPE STRING,
CHARG TYPE STRING,
WERKS TYPE STRING,
VAL_DATE TYPE STRING,
ACCRUAL_AMOUNT TYPE STRING,
ANTICIP_AMOUNT TYPE STRING,
POSTED_AMOUNT TYPE STRING,
ACCRUAL_AMOUNT_LC TYPE STRING,
ANTICIP_AMOUNT_LC TYPE STRING,
POSTED_AMOUNT_LC TYPE STRING,
ANTICIP_QUANTITY TYPE STRING,
POSTED_QUANTITY TYPE STRING,
ORDER_UOM TYPE STRING,
GUID_TEXT TYPE STRING,
CALC_RESULT_STATUS TYPE STRING,
NOT_EFFECTIVE TYPE STRING,
OBJ_ITEM_HL TYPE STRING,
OBJ_TYPE TYPE STRING,
OBJ_ID TYPE STRING,
OBJ_ITEM TYPE STRING,
PRE_OBJ_TYPE TYPE STRING,
PRE_OBJ_ID TYPE STRING,
PRE_OBJ_ITEM TYPE STRING,
PRE_OBJ_DOC_TYPE TYPE STRING,
PRE_OBJ_DOC_CAT TYPE STRING,
START_OBJ_TYPE TYPE STRING,
START_OBJ_ID TYPE STRING,
START_OBJ_ITEM TYPE STRING,
START_OBJ_DOC_TYPE TYPE STRING,
START_OBJ_DOC_CAT TYPE STRING,
START_OBJ_EXT_ID TYPE STRING,
ERNAM TYPE STRING,
CRTSP TYPE STRING,
AENAM TYPE STRING,
CHTSP TYPE STRING,
SHORT_TEXT TYPE STRING,
ORDER_CREATED_BY TYPE STRING,
ORDER_CREATION_DATE TYPE STRING,
VBELN_POST TYPE STRING,
POSNR_POST TYPE STRING,
POSNR_POST_2 TYPE STRING,
VBELN_RESET TYPE STRING,
POSNR_RESET TYPE STRING,
POSNR_RESET_2 TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKGRP TYPE STRING,
VKBUR TYPE STRING,
KUNAG TYPE STRING,
VBTYP_OBJ TYPE STRING,
NAME1 TYPE STRING,
KNUMV TYPE STRING,
VBTYP_POST TYPE STRING,
VBTYP_RESET TYPE STRING,
FKART_POST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MEV_S_AD_ITEM_SD_WORK_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_MEV_S_AD_ITEM_SD_WORK_STR-GUID_ITEM sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-GUID_ROOT sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-ITEMNR sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-MATNR sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-MATKL sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-CHARG sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-WERKS sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-VAL_DATE sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-ACCRUAL_AMOUNT sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-ANTICIP_AMOUNT sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-POSTED_AMOUNT sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-ACCRUAL_AMOUNT_LC sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-ANTICIP_AMOUNT_LC sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-POSTED_AMOUNT_LC sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-ANTICIP_QUANTITY sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-POSTED_QUANTITY sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-ORDER_UOM sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-GUID_TEXT sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-CALC_RESULT_STATUS sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-NOT_EFFECTIVE sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-OBJ_ITEM_HL sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-OBJ_TYPE sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-OBJ_ID sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-OBJ_ITEM sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-PRE_OBJ_TYPE sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-PRE_OBJ_ID sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-PRE_OBJ_ITEM sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-PRE_OBJ_DOC_TYPE sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-PRE_OBJ_DOC_CAT sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-START_OBJ_TYPE sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-START_OBJ_ID sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-START_OBJ_ITEM sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-START_OBJ_DOC_TYPE sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-START_OBJ_DOC_CAT sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-START_OBJ_EXT_ID sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-ERNAM sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-CRTSP sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-AENAM sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-CHTSP sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-SHORT_TEXT sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-ORDER_CREATED_BY sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-ORDER_CREATION_DATE sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-VBELN_POST sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-POSNR_POST sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-POSNR_POST_2 sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-VBELN_RESET sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-POSNR_RESET sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-POSNR_RESET_2 sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-VKORG sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-VTWEG sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-SPART sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-VKGRP sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-VKBUR sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-KUNAG sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-VBTYP_OBJ sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-NAME1 sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-KNUMV sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-VBTYP_POST sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-VBTYP_RESET sy-vline 
WA_MEV_S_AD_ITEM_SD_WORK_STR-FKART_POST sy-vline      INTO ld_text SEPARATED BY SPACE.

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