ABAP Select data from SAP table ESO_S_ERP_VBAK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESO_S_ERP_VBAK
*  INTO TABLE @DATA(IT_ESO_S_ERP_VBAK2).
*--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_ESO_S_ERP_VBAK INDEX 1 INTO DATA(WA_ESO_S_ERP_VBAK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESO_S_ERP_VBAK>-VBELN = 1.
<ESO_S_ERP_VBAK>-NETWR = 1.
<ESO_S_ERP_VBAK>-WAERK = 1.
<ESO_S_ERP_VBAK>-ERNAM = 1.
<ESO_S_ERP_VBAK>-ERDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESO_S_ERP_VBAK-AUART, sy-vline,
  WA_ESO_S_ERP_VBAK-VKORG, sy-vline,
  WA_ESO_S_ERP_VBAK-VTWEG, sy-vline,
  WA_ESO_S_ERP_VBAK-SPART, sy-vline,
  WA_ESO_S_ERP_VBAK-VKBUR, sy-vline,
  WA_ESO_S_ERP_VBAK-VKGRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESO_S_ERP_VBAK 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_ESO_S_ERP_VBAK 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_ESO_S_ERP_VBAK INTO WA_ESO_S_ERP_VBAK.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESO_S_ERP_VBAK-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESO_S_ERP_VBAK-KOSTL.
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_ESO_S_ERP_VBAK_STR, 
VBELN TYPE STRING,
NETWR TYPE STRING,
WAERK TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
AUART TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKBUR TYPE STRING,
VKGRP TYPE STRING,
TRVOG TYPE STRING,
VBELN_EXT TYPE STRING,
AUART_EXT TYPE STRING,
KUNNR TYPE STRING,
KUNNR_EXT TYPE STRING,
VSNMR_V TYPE STRING,
AUFNR TYPE STRING,
QMNUM TYPE STRING,
ANGDT TYPE STRING,
BNDDT TYPE STRING,
AUDAT TYPE STRING,
VBTYP TYPE STRING,
VDATU TYPE STRING,
VSBED TYPE STRING,
BSTNK TYPE STRING,
BSARK TYPE STRING,
BSTDK TYPE STRING,
TELF1 TYPE STRING,
KOSTL TYPE STRING,
ABHOD TYPE STRING,
ABHOV TYPE STRING,
ABHOB TYPE STRING,
STCEG_L TYPE STRING,
LANDTX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESO_S_ERP_VBAK_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_ESO_S_ERP_VBAK_STR-VBELN sy-vline 
WA_ESO_S_ERP_VBAK_STR-NETWR sy-vline 
WA_ESO_S_ERP_VBAK_STR-WAERK sy-vline 
WA_ESO_S_ERP_VBAK_STR-ERNAM sy-vline 
WA_ESO_S_ERP_VBAK_STR-ERDAT sy-vline 
WA_ESO_S_ERP_VBAK_STR-AUART sy-vline 
WA_ESO_S_ERP_VBAK_STR-VKORG sy-vline 
WA_ESO_S_ERP_VBAK_STR-VTWEG sy-vline 
WA_ESO_S_ERP_VBAK_STR-SPART sy-vline 
WA_ESO_S_ERP_VBAK_STR-VKBUR sy-vline 
WA_ESO_S_ERP_VBAK_STR-VKGRP sy-vline 
WA_ESO_S_ERP_VBAK_STR-TRVOG sy-vline 
WA_ESO_S_ERP_VBAK_STR-VBELN_EXT sy-vline 
WA_ESO_S_ERP_VBAK_STR-AUART_EXT sy-vline 
WA_ESO_S_ERP_VBAK_STR-KUNNR sy-vline 
WA_ESO_S_ERP_VBAK_STR-KUNNR_EXT sy-vline 
WA_ESO_S_ERP_VBAK_STR-VSNMR_V sy-vline 
WA_ESO_S_ERP_VBAK_STR-AUFNR sy-vline 
WA_ESO_S_ERP_VBAK_STR-QMNUM sy-vline 
WA_ESO_S_ERP_VBAK_STR-ANGDT sy-vline 
WA_ESO_S_ERP_VBAK_STR-BNDDT sy-vline 
WA_ESO_S_ERP_VBAK_STR-AUDAT sy-vline 
WA_ESO_S_ERP_VBAK_STR-VBTYP sy-vline 
WA_ESO_S_ERP_VBAK_STR-VDATU sy-vline 
WA_ESO_S_ERP_VBAK_STR-VSBED sy-vline 
WA_ESO_S_ERP_VBAK_STR-BSTNK sy-vline 
WA_ESO_S_ERP_VBAK_STR-BSARK sy-vline 
WA_ESO_S_ERP_VBAK_STR-BSTDK sy-vline 
WA_ESO_S_ERP_VBAK_STR-TELF1 sy-vline 
WA_ESO_S_ERP_VBAK_STR-KOSTL sy-vline 
WA_ESO_S_ERP_VBAK_STR-ABHOD sy-vline 
WA_ESO_S_ERP_VBAK_STR-ABHOV sy-vline 
WA_ESO_S_ERP_VBAK_STR-ABHOB sy-vline 
WA_ESO_S_ERP_VBAK_STR-STCEG_L sy-vline 
WA_ESO_S_ERP_VBAK_STR-LANDTX sy-vline      INTO ld_text SEPARATED BY SPACE.

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