ABAP Select data from SAP table J_7LKVFM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_7LKVFM 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_7LKVFM. 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_7LKVFM 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_7LKVFM TYPE STANDARD TABLE OF J_7LKVFM,
      WA_J_7LKVFM TYPE J_7LKVFM,
      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_7LKVFM> TYPE J_7LKVFM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_7LKVFM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_7LKVFM
  INTO TABLE IT_J_7LKVFM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_7LKVFM
*  INTO TABLE @DATA(IT_J_7LKVFM2).
*--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_7LKVFM INDEX 1 INTO DATA(WA_J_7LKVFM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_7LKVFM ASSIGNING <J_7LKVFM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_7LKVFM>-MANDT = 1.
<J_7LKVFM>-MATNR = 1.
<J_7LKVFM>-VARIANTE = 1.
<J_7LKVFM>-VRKME = 1.
<J_7LKVFM>-LAND1 = 1.

ENDLOOP.

LOOP AT IT_J_7LKVFM INTO WA_J_7LKVFM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_7LKVFM-VKORG, sy-vline,
  WA_J_7LKVFM-VTWEG, sy-vline,
  WA_J_7LKVFM-SPART, sy-vline,
  WA_J_7LKVFM-KUMRK, sy-vline,
  WA_J_7LKVFM-KUNNR, sy-vline,
  WA_J_7LKVFM-EKORG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_7LKVFM 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_7LKVFM 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_7LKVFM INTO WA_J_7LKVFM.


*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_7LKVFM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKVFM-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKVFM-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKVFM-VRKME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKVFM-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKVFM-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKVFM-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKVFM-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKVFM-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKVFM-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field RMATN
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKVFM-RMATN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKVFM-RMATN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RVRKM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKVFM-RVRKM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKVFM-RVRKM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR_F
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKVFM-KUNNR_F
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKVFM-KUNNR_F.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR_F
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKVFM-LIFNR_F
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKVFM-LIFNR_F.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR_H
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKVFM-KUNNR_H
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKVFM-KUNNR_H.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR_H
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKVFM-LIFNR_H
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKVFM-LIFNR_H.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKVFM-HKUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKVFM-HKUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PARVW, internal->external for field HPARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKVFM-HPARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKVFM-HPARVW.
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_7LKVFM_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
VARIANTE TYPE STRING,
VRKME TYPE STRING,
LAND1 TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
KUMRK TYPE STRING,
KUNNR TYPE STRING,
EKORG TYPE STRING,
LIMRK TYPE STRING,
LIFNR TYPE STRING,
GSBER TYPE STRING,
WERKS TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
FKIMG TYPE STRING,
FKLMG TYPE STRING,
FKIMP TYPE STRING,
MEINS TYPE STRING,
RMATN TYPE STRING,
MEREL TYPE STRING,
MEVWX TYPE STRING,
RVRKM TYPE STRING,
VGTYP TYPE STRING,
POSARV TYPE STRING,
POSARX TYPE STRING,
LLAND TYPE STRING,
VKORG_F TYPE STRING,
VTWEG_F TYPE STRING,
SPART_F TYPE STRING,
KUMRK_F TYPE STRING,
KUNNR_F TYPE STRING,
EKORG_F TYPE STRING,
LIMRK_F TYPE STRING,
LIFNR_F TYPE STRING,
VKORG_H TYPE STRING,
VTWEG_H TYPE STRING,
SPART_H TYPE STRING,
KUMRK_H TYPE STRING,
KUNNR_H TYPE STRING,
EKORG_H TYPE STRING,
LIMRK_H TYPE STRING,
LIFNR_H TYPE STRING,
HKUNNR TYPE STRING,
HVKORG TYPE STRING,
HVTWEG TYPE STRING,
HSPART TYPE STRING,
HPARVW TYPE STRING,
HITYP TYPE STRING,
HISTUNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_7LKVFM_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_7LKVFM_STR-MANDT sy-vline 
WA_J_7LKVFM_STR-MATNR sy-vline 
WA_J_7LKVFM_STR-VARIANTE sy-vline 
WA_J_7LKVFM_STR-VRKME sy-vline 
WA_J_7LKVFM_STR-LAND1 sy-vline 
WA_J_7LKVFM_STR-VKORG sy-vline 
WA_J_7LKVFM_STR-VTWEG sy-vline 
WA_J_7LKVFM_STR-SPART sy-vline 
WA_J_7LKVFM_STR-KUMRK sy-vline 
WA_J_7LKVFM_STR-KUNNR sy-vline 
WA_J_7LKVFM_STR-EKORG sy-vline 
WA_J_7LKVFM_STR-LIMRK sy-vline 
WA_J_7LKVFM_STR-LIFNR sy-vline 
WA_J_7LKVFM_STR-GSBER sy-vline 
WA_J_7LKVFM_STR-WERKS sy-vline 
WA_J_7LKVFM_STR-DATAB sy-vline 
WA_J_7LKVFM_STR-DATBI sy-vline 
WA_J_7LKVFM_STR-FKIMG sy-vline 
WA_J_7LKVFM_STR-FKLMG sy-vline 
WA_J_7LKVFM_STR-FKIMP sy-vline 
WA_J_7LKVFM_STR-MEINS sy-vline 
WA_J_7LKVFM_STR-RMATN sy-vline 
WA_J_7LKVFM_STR-MEREL sy-vline 
WA_J_7LKVFM_STR-MEVWX sy-vline 
WA_J_7LKVFM_STR-RVRKM sy-vline 
WA_J_7LKVFM_STR-VGTYP sy-vline 
WA_J_7LKVFM_STR-POSARV sy-vline 
WA_J_7LKVFM_STR-POSARX sy-vline 
WA_J_7LKVFM_STR-LLAND sy-vline 
WA_J_7LKVFM_STR-VKORG_F sy-vline 
WA_J_7LKVFM_STR-VTWEG_F sy-vline 
WA_J_7LKVFM_STR-SPART_F sy-vline 
WA_J_7LKVFM_STR-KUMRK_F sy-vline 
WA_J_7LKVFM_STR-KUNNR_F sy-vline 
WA_J_7LKVFM_STR-EKORG_F sy-vline 
WA_J_7LKVFM_STR-LIMRK_F sy-vline 
WA_J_7LKVFM_STR-LIFNR_F sy-vline 
WA_J_7LKVFM_STR-VKORG_H sy-vline 
WA_J_7LKVFM_STR-VTWEG_H sy-vline 
WA_J_7LKVFM_STR-SPART_H sy-vline 
WA_J_7LKVFM_STR-KUMRK_H sy-vline 
WA_J_7LKVFM_STR-KUNNR_H sy-vline 
WA_J_7LKVFM_STR-EKORG_H sy-vline 
WA_J_7LKVFM_STR-LIMRK_H sy-vline 
WA_J_7LKVFM_STR-LIFNR_H sy-vline 
WA_J_7LKVFM_STR-HKUNNR sy-vline 
WA_J_7LKVFM_STR-HVKORG sy-vline 
WA_J_7LKVFM_STR-HVTWEG sy-vline 
WA_J_7LKVFM_STR-HSPART sy-vline 
WA_J_7LKVFM_STR-HPARVW sy-vline 
WA_J_7LKVFM_STR-HITYP sy-vline 
WA_J_7LKVFM_STR-HISTUNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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