ABAP Select data from SAP table CDS_M_M2S_PD_ITM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CDS_M_M2S_PD_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 CDS_M_M2S_PD_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 CDS_M_M2S_PD_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_CDS_M_M2S_PD_ITM TYPE STANDARD TABLE OF CDS_M_M2S_PD_ITM,
      WA_CDS_M_M2S_PD_ITM TYPE CDS_M_M2S_PD_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: <CDS_M_M2S_PD_ITM> TYPE CDS_M_M2S_PD_ITM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CDS_M_M2S_PD_ITM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CDS_M_M2S_PD_ITM
  INTO TABLE IT_CDS_M_M2S_PD_ITM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CDS_M_M2S_PD_ITM
*  INTO TABLE @DATA(IT_CDS_M_M2S_PD_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_CDS_M_M2S_PD_ITM INDEX 1 INTO DATA(WA_CDS_M_M2S_PD_ITM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CDS_M_M2S_PD_ITM ASSIGNING <CDS_M_M2S_PD_ITM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CDS_M_M2S_PD_ITM>-MANDT = 1.
<CDS_M_M2S_PD_ITM>-EBELN = 1.
<CDS_M_M2S_PD_ITM>-EBELP = 1.
<CDS_M_M2S_PD_ITM>-TXZ01 = 1.
<CDS_M_M2S_PD_ITM>-MATNR = 1.

ENDLOOP.

LOOP AT IT_CDS_M_M2S_PD_ITM INTO WA_CDS_M_M2S_PD_ITM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CDS_M_M2S_PD_ITM-MATKL, sy-vline,
  WA_CDS_M_M2S_PD_ITM-WERKS, sy-vline,
  WA_CDS_M_M2S_PD_ITM-LMEIN, sy-vline,
  WA_CDS_M_M2S_PD_ITM-LGORT, sy-vline,
  WA_CDS_M_M2S_PD_ITM-BUKRS, sy-vline,
  WA_CDS_M_M2S_PD_ITM-MEINS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CDS_M_M2S_PD_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_CDS_M_M2S_PD_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_CDS_M_M2S_PD_ITM INTO WA_CDS_M_M2S_PD_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 EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CDS_M_M2S_PD_ITM-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CDS_M_M2S_PD_ITM-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CDS_M_M2S_PD_ITM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CDS_M_M2S_PD_ITM-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field LMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CDS_M_M2S_PD_ITM-LMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CDS_M_M2S_PD_ITM-LMEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CDS_M_M2S_PD_ITM-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CDS_M_M2S_PD_ITM-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BPRME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CDS_M_M2S_PD_ITM-BPRME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CDS_M_M2S_PD_ITM-BPRME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BANFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CDS_M_M2S_PD_ITM-BANFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CDS_M_M2S_PD_ITM-BANFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field EMATN
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CDS_M_M2S_PD_ITM-EMATN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CDS_M_M2S_PD_ITM-EMATN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CDS_M_M2S_PD_ITM-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CDS_M_M2S_PD_ITM-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KONNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CDS_M_M2S_PD_ITM-KONNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CDS_M_M2S_PD_ITM-KONNR.
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_CDS_M_M2S_PD_ITM_STR, 
MANDT TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
TXZ01 TYPE STRING,
MATNR TYPE STRING,
MATKL TYPE STRING,
WERKS TYPE STRING,
LMEIN TYPE STRING,
LGORT TYPE STRING,
BUKRS TYPE STRING,
MEINS TYPE STRING,
BPRME TYPE STRING,
KNTTP TYPE STRING,
LOEKZ_I TYPE STRING,
BANFN TYPE STRING,
BNFPO TYPE STRING,
EMATN TYPE STRING,
MENGE TYPE STRING,
PEINH TYPE STRING,
NETPR TYPE STRING,
NETWR TYPE STRING,
KTMNG TYPE STRING,
ZWERT TYPE STRING,
STATU TYPE STRING,
PSTYP TYPE STRING,
STAPO TYPE STRING,
RETPO TYPE STRING,
UMREN TYPE STRING,
UMREZ TYPE STRING,
ELIKZ TYPE STRING,
EREKZ TYPE STRING,
WEPOS TYPE STRING,
WEBRE TYPE STRING,
REPOS TYPE STRING,
WKURS TYPE STRING,
BSTYP TYPE STRING,
BSART TYPE STRING,
AEDAT TYPE STRING,
ERNAM TYPE STRING,
LIFNR TYPE STRING,
ZTERM TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
WAERS TYPE STRING,
BEDAT TYPE STRING,
KDATB TYPE STRING,
KDATE TYPE STRING,
KUFIX TYPE STRING,
KONNR TYPE STRING,
RESWK TYPE STRING,
LOEKZ_H TYPE STRING,
ANGDT TYPE STRING,
SUBMI TYPE STRING,
KTWRT TYPE STRING,
DESCRIPTION TYPE STRING,
ISEOPBLOCKED TYPE STRING,
NAME1 TYPE STRING,
SORTL TYPE STRING,
EKNAM TYPE STRING,
EKOTX TYPE STRING,
BUTXT TYPE STRING,
NAME1_P TYPE STRING,
NAME1_SP TYPE STRING,
NAME_TEXT TYPE STRING,
STATUS TYPE STRING,
WEMNG TYPE STRING,
WEWRT TYPE STRING,
REMNG TYPE STRING,
REWRT TYPE STRING,
VALUEMISMATCH TYPE STRING,
QTYMISMATCH TYPE STRING,
CONFMISS TYPE STRING,
WESBS TYPE STRING,
POSTGR TYPE STRING,
MAKTX TYPE STRING,
WGBEZ TYPE STRING,
BATXT TYPE STRING,
STATUSTEXT TYPE STRING,
CNTF TYPE STRING,
CNTK TYPE STRING,
CNTL TYPE STRING,
RELEASEQUANTITY TYPE STRING,
CONTRACTITEMUSAGE TYPE STRING,
RELEASEVALUE TYPE STRING,
SOSID TYPE STRING,
SOSNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CDS_M_M2S_PD_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_CDS_M_M2S_PD_ITM_STR-MANDT sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-EBELN sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-EBELP sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-TXZ01 sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-MATNR sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-MATKL sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-WERKS sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-LMEIN sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-LGORT sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-BUKRS sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-MEINS sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-BPRME sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-KNTTP sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-LOEKZ_I sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-BANFN sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-BNFPO sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-EMATN sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-MENGE sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-PEINH sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-NETPR sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-NETWR sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-KTMNG sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-ZWERT sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-STATU sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-PSTYP sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-STAPO sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-RETPO sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-UMREN sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-UMREZ sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-ELIKZ sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-EREKZ sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-WEPOS sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-WEBRE sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-REPOS sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-WKURS sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-BSTYP sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-BSART sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-AEDAT sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-ERNAM sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-LIFNR sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-ZTERM sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-EKORG sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-EKGRP sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-WAERS sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-BEDAT sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-KDATB sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-KDATE sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-KUFIX sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-KONNR sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-RESWK sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-LOEKZ_H sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-ANGDT sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-SUBMI sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-KTWRT sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-DESCRIPTION sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-ISEOPBLOCKED sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-NAME1 sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-SORTL sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-EKNAM sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-EKOTX sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-BUTXT sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-NAME1_P sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-NAME1_SP sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-NAME_TEXT sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-STATUS sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-WEMNG sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-WEWRT sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-REMNG sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-REWRT sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-VALUEMISMATCH sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-QTYMISMATCH sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-CONFMISS sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-WESBS sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-POSTGR sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-MAKTX sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-WGBEZ sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-BATXT sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-STATUSTEXT sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-CNTF sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-CNTK sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-CNTL sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-RELEASEQUANTITY sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-CONTRACTITEMUSAGE sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-RELEASEVALUE sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-SOSID sy-vline 
WA_CDS_M_M2S_PD_ITM_STR-SOSNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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