ABAP Select data from SAP table J_7LKMMV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_7LKMMV 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_7LKMMV. 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_7LKMMV 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_7LKMMV TYPE STANDARD TABLE OF J_7LKMMV,
      WA_J_7LKMMV TYPE J_7LKMMV,
      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_7LKMMV> TYPE J_7LKMMV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_7LKMMV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_7LKMMV
  INTO TABLE IT_J_7LKMMV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_7LKMMV
*  INTO TABLE @DATA(IT_J_7LKMMV2).
*--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_7LKMMV INDEX 1 INTO DATA(WA_J_7LKMMV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_7LKMMV ASSIGNING <J_7LKMMV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_7LKMMV>-MANDT = 1.
<J_7LKMMV>-SPTAG = 1.
<J_7LKMMV>-SPMON = 1.
<J_7LKMMV>-SPWOC = 1.
<J_7LKMMV>-SPBUP = 1.

ENDLOOP.

LOOP AT IT_J_7LKMMV INTO WA_J_7LKMMV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_7LKMMV-VGART, sy-vline,
  WA_J_7LKMMV-BLART, sy-vline,
  WA_J_7LKMMV-BWART, sy-vline,
  WA_J_7LKMMV-DATUM, sy-vline,
  WA_J_7LKMMV-MATNR, sy-vline,
  WA_J_7LKMMV-VARIANTE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_7LKMMV 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_7LKMMV 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_7LKMMV INTO WA_J_7LKMMV.


*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 PERI, internal->external for field SPMON
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKMMV-SPMON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKMMV-SPMON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field SPWOC
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKMMV-SPWOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKMMV-SPWOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field SPBUP
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKMMV-SPBUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKMMV-SPBUP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKMMV-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKMMV-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKMMV-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKMMV-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKMMV-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKMMV-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKMMV-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKMMV-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ERFME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKMMV-ERFME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKMMV-ERFME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field J7LME1_01
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKMMV-J7LME1_01
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKMMV-J7LME1_01.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field J7LME2_02
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKMMV-J7LME2_02
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKMMV-J7LME2_02.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field J7LME3_03
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKMMV-J7LME3_03
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKMMV-J7LME3_03.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field J7LME4_04
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKMMV-J7LME4_04
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKMMV-J7LME4_04.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKMMV-MBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKMMV-MBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKMMV-MJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKMMV-MJAHR.
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_7LKMMV_STR, 
MANDT TYPE STRING,
SPTAG TYPE STRING,
SPMON TYPE STRING,
SPWOC TYPE STRING,
SPBUP TYPE STRING,
VGART TYPE STRING,
BLART TYPE STRING,
BWART TYPE STRING,
DATUM TYPE STRING,
MATNR TYPE STRING,
VARIANTE TYPE STRING,
BUKRS TYPE STRING,
LAND1 TYPE STRING,
GSBER TYPE STRING,
WERKS 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,
ALAND TYPE STRING,
LLAND TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
ERFMG TYPE STRING,
ERFME TYPE STRING,
HRKFTMM TYPE STRING,
J7LMENG1 TYPE STRING,
J7LMENG2 TYPE STRING,
J7LMENG3 TYPE STRING,
J7LMENG4 TYPE STRING,
J7LME1_01 TYPE STRING,
J7LME2_02 TYPE STRING,
J7LME3_03 TYPE STRING,
J7LME4_04 TYPE STRING,
J7LMNGP1 TYPE STRING,
J7LMNGP2 TYPE STRING,
J7LMNGP3 TYPE STRING,
J7LMNGP4 TYPE STRING,
MBLNR TYPE STRING,
MJAHR TYPE STRING,
ZEILE TYPE STRING,
BLDAT TYPE STRING,
VGTYP TYPE STRING,
VPTYP TYPE STRING,
POSARV TYPE STRING,
POSARX TYPE STRING,
SIGN TYPE STRING,
MTART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_7LKMMV_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_7LKMMV_STR-MANDT sy-vline 
WA_J_7LKMMV_STR-SPTAG sy-vline 
WA_J_7LKMMV_STR-SPMON sy-vline 
WA_J_7LKMMV_STR-SPWOC sy-vline 
WA_J_7LKMMV_STR-SPBUP sy-vline 
WA_J_7LKMMV_STR-VGART sy-vline 
WA_J_7LKMMV_STR-BLART sy-vline 
WA_J_7LKMMV_STR-BWART sy-vline 
WA_J_7LKMMV_STR-DATUM sy-vline 
WA_J_7LKMMV_STR-MATNR sy-vline 
WA_J_7LKMMV_STR-VARIANTE sy-vline 
WA_J_7LKMMV_STR-BUKRS sy-vline 
WA_J_7LKMMV_STR-LAND1 sy-vline 
WA_J_7LKMMV_STR-GSBER sy-vline 
WA_J_7LKMMV_STR-WERKS sy-vline 
WA_J_7LKMMV_STR-VKORG sy-vline 
WA_J_7LKMMV_STR-VTWEG sy-vline 
WA_J_7LKMMV_STR-SPART sy-vline 
WA_J_7LKMMV_STR-KUMRK sy-vline 
WA_J_7LKMMV_STR-KUNNR sy-vline 
WA_J_7LKMMV_STR-EKORG sy-vline 
WA_J_7LKMMV_STR-LIMRK sy-vline 
WA_J_7LKMMV_STR-LIFNR sy-vline 
WA_J_7LKMMV_STR-ALAND sy-vline 
WA_J_7LKMMV_STR-LLAND sy-vline 
WA_J_7LKMMV_STR-MENGE sy-vline 
WA_J_7LKMMV_STR-MEINS sy-vline 
WA_J_7LKMMV_STR-ERFMG sy-vline 
WA_J_7LKMMV_STR-ERFME sy-vline 
WA_J_7LKMMV_STR-HRKFTMM sy-vline 
WA_J_7LKMMV_STR-J7LMENG1 sy-vline 
WA_J_7LKMMV_STR-J7LMENG2 sy-vline 
WA_J_7LKMMV_STR-J7LMENG3 sy-vline 
WA_J_7LKMMV_STR-J7LMENG4 sy-vline 
WA_J_7LKMMV_STR-J7LME1_01 sy-vline 
WA_J_7LKMMV_STR-J7LME2_02 sy-vline 
WA_J_7LKMMV_STR-J7LME3_03 sy-vline 
WA_J_7LKMMV_STR-J7LME4_04 sy-vline 
WA_J_7LKMMV_STR-J7LMNGP1 sy-vline 
WA_J_7LKMMV_STR-J7LMNGP2 sy-vline 
WA_J_7LKMMV_STR-J7LMNGP3 sy-vline 
WA_J_7LKMMV_STR-J7LMNGP4 sy-vline 
WA_J_7LKMMV_STR-MBLNR sy-vline 
WA_J_7LKMMV_STR-MJAHR sy-vline 
WA_J_7LKMMV_STR-ZEILE sy-vline 
WA_J_7LKMMV_STR-BLDAT sy-vline 
WA_J_7LKMMV_STR-VGTYP sy-vline 
WA_J_7LKMMV_STR-VPTYP sy-vline 
WA_J_7LKMMV_STR-POSARV sy-vline 
WA_J_7LKMMV_STR-POSARX sy-vline 
WA_J_7LKMMV_STR-SIGN sy-vline 
WA_J_7LKMMV_STR-MTART sy-vline      INTO ld_text SEPARATED BY SPACE.

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