ABAP Select data from SAP table MC45VD2LST into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MC45VD2LST 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 MC45VD2LST. 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 MC45VD2LST 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_MC45VD2LST TYPE STANDARD TABLE OF MC45VD2LST,
      WA_MC45VD2LST TYPE MC45VD2LST,
      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: <MC45VD2LST> TYPE MC45VD2LST.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_MC45VD2LST.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MC45VD2LST
  INTO TABLE IT_MC45VD2LST.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MC45VD2LST
*  INTO TABLE @DATA(IT_MC45VD2LST2).
*--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_MC45VD2LST INDEX 1 INTO DATA(WA_MC45VD2LST2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MC45VD2LST ASSIGNING <MC45VD2LST>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MC45VD2LST>-ABART = 1.
<MC45VD2LST>-AEDAT = 1.
<MC45VD2LST>-BLDAT = 1.
<MC45VD2LST>-BUKRS = 1.
<MC45VD2LST>-COLLECTION_TYPE = 1.

ENDLOOP.

LOOP AT IT_MC45VD2LST INTO WA_MC45VD2LST.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MC45VD2LST-CPDK_ADDR, sy-vline,
  WA_MC45VD2LST-DIEKZ, sy-vline,
  WA_MC45VD2LST-EKGRP, sy-vline,
  WA_MC45VD2LST-EKORG, sy-vline,
  WA_MC45VD2LST-ESTATUS, sy-vline,
  WA_MC45VD2LST-FKSTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MC45VD2LST 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_MC45VD2LST 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_MC45VD2LST INTO WA_MC45VD2LST.


*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 CPDK_ADDR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC45VD2LST-CPDK_ADDR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC45VD2LST-CPDK_ADDR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNRE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC45VD2LST-KUNRE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC45VD2LST-KUNRE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNRG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC45VD2LST-KUNRG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC45VD2LST-KUNRG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LFAKS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC45VD2LST-LFAKS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC45VD2LST-LFAKS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFRE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC45VD2LST-LIFRE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC45VD2LST-LIFRE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LNRZB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC45VD2LST-LNRZB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC45VD2LST-LNRZB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SETTLE_DOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC45VD2LST-SETTLE_DOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC45VD2LST-SETTLE_DOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC45VD2LST-WBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC45VD2LST-WBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WBELN_RL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC45VD2LST-WBELN_RL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC45VD2LST-WBELN_RL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field WKURS
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_MC45VD2LST-WKURS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC45VD2LST-WKURS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field WKURS_P1
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_MC45VD2LST-WKURS_P1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC45VD2LST-WKURS_P1.
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_MC45VD2LST_STR, 
ABART TYPE STRING,
AEDAT TYPE STRING,
BLDAT TYPE STRING,
BUKRS TYPE STRING,
COLLECTION_TYPE TYPE STRING,
CPDK_ADDR TYPE STRING,
DIEKZ TYPE STRING,
EKGRP TYPE STRING,
EKORG TYPE STRING,
ESTATUS TYPE STRING,
FKSTO TYPE STRING,
HWAER TYPE STRING,
KAPPL TYPE STRING,
KIDNO TYPE STRING,
KKBER TYPE STRING,
KUFIX TYPE STRING,
KUNRE TYPE STRING,
KUNRG TYPE STRING,
KURST TYPE STRING,
LANDL TYPE STRING,
LFAKS TYPE STRING,
LFART TYPE STRING,
LFTYP TYPE STRING,
LIFRE TYPE STRING,
LNRZB TYPE STRING,
LZBKZ TYPE STRING,
MANDT TYPE STRING,
POST_PARTY TYPE STRING,
RFBSK TYPE STRING,
SETTLE_CATEGORY TYPE STRING,
SETTLE_DOC TYPE STRING,
SPART TYPE STRING,
VALDT TYPE STRING,
VALTG TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
WAERL TYPE STRING,
WBELN TYPE STRING,
WBELN_RL TYPE STRING,
WDTYP TYPE STRING,
WFDAT TYPE STRING,
WFDAT_RL TYPE STRING,
WKURS TYPE STRING,
WKURS_DAT TYPE STRING,
WKURS_P1 TYPE STRING,
WPYCUR_P1 TYPE STRING,
WRART TYPE STRING,
WRTYP TYPE STRING,
WSTWAE TYPE STRING,
XBLNR TYPE STRING,
ZBD1P TYPE STRING,
ZBD1T TYPE STRING,
ZBD2P TYPE STRING,
ZBD2T TYPE STRING,
ZBD3T TYPE STRING,
ZLSCH TYPE STRING,
ZTERM TYPE STRING,
ZUONR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MC45VD2LST_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_MC45VD2LST_STR-ABART sy-vline 
WA_MC45VD2LST_STR-AEDAT sy-vline 
WA_MC45VD2LST_STR-BLDAT sy-vline 
WA_MC45VD2LST_STR-BUKRS sy-vline 
WA_MC45VD2LST_STR-COLLECTION_TYPE sy-vline 
WA_MC45VD2LST_STR-CPDK_ADDR sy-vline 
WA_MC45VD2LST_STR-DIEKZ sy-vline 
WA_MC45VD2LST_STR-EKGRP sy-vline 
WA_MC45VD2LST_STR-EKORG sy-vline 
WA_MC45VD2LST_STR-ESTATUS sy-vline 
WA_MC45VD2LST_STR-FKSTO sy-vline 
WA_MC45VD2LST_STR-HWAER sy-vline 
WA_MC45VD2LST_STR-KAPPL sy-vline 
WA_MC45VD2LST_STR-KIDNO sy-vline 
WA_MC45VD2LST_STR-KKBER sy-vline 
WA_MC45VD2LST_STR-KUFIX sy-vline 
WA_MC45VD2LST_STR-KUNRE sy-vline 
WA_MC45VD2LST_STR-KUNRG sy-vline 
WA_MC45VD2LST_STR-KURST sy-vline 
WA_MC45VD2LST_STR-LANDL sy-vline 
WA_MC45VD2LST_STR-LFAKS sy-vline 
WA_MC45VD2LST_STR-LFART sy-vline 
WA_MC45VD2LST_STR-LFTYP sy-vline 
WA_MC45VD2LST_STR-LIFRE sy-vline 
WA_MC45VD2LST_STR-LNRZB sy-vline 
WA_MC45VD2LST_STR-LZBKZ sy-vline 
WA_MC45VD2LST_STR-MANDT sy-vline 
WA_MC45VD2LST_STR-POST_PARTY sy-vline 
WA_MC45VD2LST_STR-RFBSK sy-vline 
WA_MC45VD2LST_STR-SETTLE_CATEGORY sy-vline 
WA_MC45VD2LST_STR-SETTLE_DOC sy-vline 
WA_MC45VD2LST_STR-SPART sy-vline 
WA_MC45VD2LST_STR-VALDT sy-vline 
WA_MC45VD2LST_STR-VALTG sy-vline 
WA_MC45VD2LST_STR-VKORG sy-vline 
WA_MC45VD2LST_STR-VTWEG sy-vline 
WA_MC45VD2LST_STR-WAERL sy-vline 
WA_MC45VD2LST_STR-WBELN sy-vline 
WA_MC45VD2LST_STR-WBELN_RL sy-vline 
WA_MC45VD2LST_STR-WDTYP sy-vline 
WA_MC45VD2LST_STR-WFDAT sy-vline 
WA_MC45VD2LST_STR-WFDAT_RL sy-vline 
WA_MC45VD2LST_STR-WKURS sy-vline 
WA_MC45VD2LST_STR-WKURS_DAT sy-vline 
WA_MC45VD2LST_STR-WKURS_P1 sy-vline 
WA_MC45VD2LST_STR-WPYCUR_P1 sy-vline 
WA_MC45VD2LST_STR-WRART sy-vline 
WA_MC45VD2LST_STR-WRTYP sy-vline 
WA_MC45VD2LST_STR-WSTWAE sy-vline 
WA_MC45VD2LST_STR-XBLNR sy-vline 
WA_MC45VD2LST_STR-ZBD1P sy-vline 
WA_MC45VD2LST_STR-ZBD1T sy-vline 
WA_MC45VD2LST_STR-ZBD2P sy-vline 
WA_MC45VD2LST_STR-ZBD2T sy-vline 
WA_MC45VD2LST_STR-ZBD3T sy-vline 
WA_MC45VD2LST_STR-ZLSCH sy-vline 
WA_MC45VD2LST_STR-ZTERM sy-vline 
WA_MC45VD2LST_STR-ZUONR sy-vline      INTO ld_text SEPARATED BY SPACE.

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