ABAP Select data from SAP table J_7LV07_VG into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_7LV07_VG 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 J_7LV07_VG. 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 J_7LV07_VG 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_J_7LV07_VG TYPE STANDARD TABLE OF J_7LV07_VG,
      WA_J_7LV07_VG TYPE J_7LV07_VG,
      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: <J_7LV07_VG> TYPE J_7LV07_VG.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_7LV07_VG.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_7LV07_VG
  INTO TABLE IT_J_7LV07_VG.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_7LV07_VG
*  INTO TABLE @DATA(IT_J_7LV07_VG2).
*--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_J_7LV07_VG INDEX 1 INTO DATA(WA_J_7LV07_VG2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_7LV07_VG ASSIGNING <J_7LV07_VG>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_7LV07_VG>-MANDT = 1.
<J_7LV07_VG>-VPGRP = 1.
<J_7LV07_VG>-VRSIO = 1.
<J_7LV07_VG>-VRPNR = 1.
<J_7LV07_VG>-ENTNR = 1.

ENDLOOP.

LOOP AT IT_J_7LV07_VG INTO WA_J_7LV07_VG.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_7LV07_VG-LAND1, sy-vline,
  WA_J_7LV07_VG-VVARIANTE, sy-vline,
  WA_J_7LV07_VG-KZSTKENTG, sy-vline,
  WA_J_7LV07_VG-KZGEWENTG, sy-vline,
  WA_J_7LV07_VG-ZSPLITV, sy-vline,
  WA_J_7LV07_VG-VFLKL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_7LV07_VG 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_J_7LV07_VG 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_J_7LV07_VG INTO WA_J_7LV07_VG.


*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 VRPNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_7LV07_VG-VRPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LV07_VG-VRPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ENTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_7LV07_VG-ENTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LV07_VG-ENTNR.
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_J_7LV07_VG_STR, 
MANDT TYPE STRING,
VPGRP TYPE STRING,
VRSIO TYPE STRING,
VRPNR TYPE STRING,
ENTNR TYPE STRING,
LAND1 TYPE STRING,
VVARIANTE TYPE STRING,
KZSTKENTG TYPE STRING,
KZGEWENTG TYPE STRING,
ZSPLITV TYPE STRING,
VFLKL TYPE STRING,
INFOK TYPE STRING,
FUELLG TYPE STRING,
SOKOA TYPE STRING,
HDLST TYPE STRING,
HDLSTN TYPE STRING,
HDLSTKO TYPE STRING,
FAKTOR TYPE STRING,
VPARTG TYPE STRING,
VPARTS TYPE STRING,
DATABADM TYPE STRING,
DATBIADM TYPE STRING,
ERSDAADM TYPE STRING,
ERZETADM TYPE STRING,
ERNAMADM TYPE STRING,
LAEDAADM TYPE STRING,
AEZETADM TYPE STRING,
AENAMADM TYPE STRING,
LVORMADM TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_7LV07_VG_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_J_7LV07_VG_STR-MANDT sy-vline 
WA_J_7LV07_VG_STR-VPGRP sy-vline 
WA_J_7LV07_VG_STR-VRSIO sy-vline 
WA_J_7LV07_VG_STR-VRPNR sy-vline 
WA_J_7LV07_VG_STR-ENTNR sy-vline 
WA_J_7LV07_VG_STR-LAND1 sy-vline 
WA_J_7LV07_VG_STR-VVARIANTE sy-vline 
WA_J_7LV07_VG_STR-KZSTKENTG sy-vline 
WA_J_7LV07_VG_STR-KZGEWENTG sy-vline 
WA_J_7LV07_VG_STR-ZSPLITV sy-vline 
WA_J_7LV07_VG_STR-VFLKL sy-vline 
WA_J_7LV07_VG_STR-INFOK sy-vline 
WA_J_7LV07_VG_STR-FUELLG sy-vline 
WA_J_7LV07_VG_STR-SOKOA sy-vline 
WA_J_7LV07_VG_STR-HDLST sy-vline 
WA_J_7LV07_VG_STR-HDLSTN sy-vline 
WA_J_7LV07_VG_STR-HDLSTKO sy-vline 
WA_J_7LV07_VG_STR-FAKTOR sy-vline 
WA_J_7LV07_VG_STR-VPARTG sy-vline 
WA_J_7LV07_VG_STR-VPARTS sy-vline 
WA_J_7LV07_VG_STR-DATABADM sy-vline 
WA_J_7LV07_VG_STR-DATBIADM sy-vline 
WA_J_7LV07_VG_STR-ERSDAADM sy-vline 
WA_J_7LV07_VG_STR-ERZETADM sy-vline 
WA_J_7LV07_VG_STR-ERNAMADM sy-vline 
WA_J_7LV07_VG_STR-LAEDAADM sy-vline 
WA_J_7LV07_VG_STR-AEZETADM sy-vline 
WA_J_7LV07_VG_STR-AENAMADM sy-vline 
WA_J_7LV07_VG_STR-LVORMADM sy-vline 
WA_J_7LV07_VG_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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