ABAP Select data from SAP table J_7LIZMV_VG2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_7LIZMV_VG2 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_7LIZMV_VG2. 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_7LIZMV_VG2 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_7LIZMV_VG2 TYPE STANDARD TABLE OF J_7LIZMV_VG2,
      WA_J_7LIZMV_VG2 TYPE J_7LIZMV_VG2,
      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_7LIZMV_VG2> TYPE J_7LIZMV_VG2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_7LIZMV_VG2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_7LIZMV_VG2
  INTO TABLE IT_J_7LIZMV_VG2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_7LIZMV_VG2
*  INTO TABLE @DATA(IT_J_7LIZMV_VG22).
*--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_7LIZMV_VG2 INDEX 1 INTO DATA(WA_J_7LIZMV_VG22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_7LIZMV_VG2 ASSIGNING <J_7LIZMV_VG2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_7LIZMV_VG2>-MANDT = 1.
<J_7LIZMV_VG2>-MATNR = 1.
<J_7LIZMV_VG2>-VARIANTE = 1.
<J_7LIZMV_VG2>-BUKRS = 1.
<J_7LIZMV_VG2>-LAND1 = 1.

ENDLOOP.

LOOP AT IT_J_7LIZMV_VG2 INTO WA_J_7LIZMV_VG2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_7LIZMV_VG2-VRKME, sy-vline,
  WA_J_7LIZMV_VG2-VRPNR_M04, sy-vline,
  WA_J_7LIZMV_VG2-VVARIANTE_M04, sy-vline,
  WA_J_7LIZMV_VG2-DATBI, sy-vline,
  WA_J_7LIZMV_VG2-SPRAS, sy-vline,
  WA_J_7LIZMV_VG2-MTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_7LIZMV_VG2 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_7LIZMV_VG2 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_7LIZMV_VG2 INTO WA_J_7LIZMV_VG2.


*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_J_7LIZMV_VG2-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIZMV_VG2-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIZMV_VG2-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIZMV_VG2-VRKME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field VRPNR_M04
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIZMV_VG2-VRPNR_M04
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIZMV_VG2-VRPNR_M04.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIZMV_VG2-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIZMV_VG2-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field FMEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIZMV_VG2-FMEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIZMV_VG2-FMEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIZMV_VG2-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIZMV_VG2-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ENTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIZMV_VG2-ENTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIZMV_VG2-ENTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field VRPNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIZMV_VG2-VRPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIZMV_VG2-VRPNR.
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_7LIZMV_VG2_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
VARIANTE TYPE STRING,
BUKRS TYPE STRING,
LAND1 TYPE STRING,
VRKME TYPE STRING,
VRPNR_M04 TYPE STRING,
VVARIANTE_M04 TYPE STRING,
DATBI TYPE STRING,
SPRAS TYPE STRING,
MTYP TYPE STRING,
MEREL TYPE STRING,
VRSIO TYPE STRING,
VPGRP TYPE STRING,
DATAB TYPE STRING,
KPEIN TYPE STRING,
FMEINS TYPE STRING,
FMENG TYPE STRING,
VPEBENE TYPE STRING,
VERSCHNITT TYPE STRING,
MEINS TYPE STRING,
MAKTX TYPE STRING,
ENTNA TYPE STRING,
ENTNR TYPE STRING,
LVORMADM TYPE STRING,
VRPNR TYPE STRING,
VVARIANTE TYPE STRING,
VRSIO_V05 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,
VPARTG TYPE STRING,
VPARTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_7LIZMV_VG2_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_7LIZMV_VG2_STR-MANDT sy-vline 
WA_J_7LIZMV_VG2_STR-MATNR sy-vline 
WA_J_7LIZMV_VG2_STR-VARIANTE sy-vline 
WA_J_7LIZMV_VG2_STR-BUKRS sy-vline 
WA_J_7LIZMV_VG2_STR-LAND1 sy-vline 
WA_J_7LIZMV_VG2_STR-VRKME sy-vline 
WA_J_7LIZMV_VG2_STR-VRPNR_M04 sy-vline 
WA_J_7LIZMV_VG2_STR-VVARIANTE_M04 sy-vline 
WA_J_7LIZMV_VG2_STR-DATBI sy-vline 
WA_J_7LIZMV_VG2_STR-SPRAS sy-vline 
WA_J_7LIZMV_VG2_STR-MTYP sy-vline 
WA_J_7LIZMV_VG2_STR-MEREL sy-vline 
WA_J_7LIZMV_VG2_STR-VRSIO sy-vline 
WA_J_7LIZMV_VG2_STR-VPGRP sy-vline 
WA_J_7LIZMV_VG2_STR-DATAB sy-vline 
WA_J_7LIZMV_VG2_STR-KPEIN sy-vline 
WA_J_7LIZMV_VG2_STR-FMEINS sy-vline 
WA_J_7LIZMV_VG2_STR-FMENG sy-vline 
WA_J_7LIZMV_VG2_STR-VPEBENE sy-vline 
WA_J_7LIZMV_VG2_STR-VERSCHNITT sy-vline 
WA_J_7LIZMV_VG2_STR-MEINS sy-vline 
WA_J_7LIZMV_VG2_STR-MAKTX sy-vline 
WA_J_7LIZMV_VG2_STR-ENTNA sy-vline 
WA_J_7LIZMV_VG2_STR-ENTNR sy-vline 
WA_J_7LIZMV_VG2_STR-LVORMADM sy-vline 
WA_J_7LIZMV_VG2_STR-VRPNR sy-vline 
WA_J_7LIZMV_VG2_STR-VVARIANTE sy-vline 
WA_J_7LIZMV_VG2_STR-VRSIO_V05 sy-vline 
WA_J_7LIZMV_VG2_STR-KZSTKENTG sy-vline 
WA_J_7LIZMV_VG2_STR-KZGEWENTG sy-vline 
WA_J_7LIZMV_VG2_STR-ZSPLITV sy-vline 
WA_J_7LIZMV_VG2_STR-VFLKL sy-vline 
WA_J_7LIZMV_VG2_STR-INFOK sy-vline 
WA_J_7LIZMV_VG2_STR-FUELLG sy-vline 
WA_J_7LIZMV_VG2_STR-SOKOA sy-vline 
WA_J_7LIZMV_VG2_STR-HDLST sy-vline 
WA_J_7LIZMV_VG2_STR-HDLSTN sy-vline 
WA_J_7LIZMV_VG2_STR-HDLSTKO sy-vline 
WA_J_7LIZMV_VG2_STR-VPARTG sy-vline 
WA_J_7LIZMV_VG2_STR-VPARTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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