ABAP Select data from SAP table J_7LKB3 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_7LKB3 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_7LKB3. 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_7LKB3 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_7LKB3 TYPE STANDARD TABLE OF J_7LKB3,
      WA_J_7LKB3 TYPE J_7LKB3,
      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_7LKB3> TYPE J_7LKB3.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_7LKB3.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_7LKB3
  INTO TABLE IT_J_7LKB3.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_7LKB3
*  INTO TABLE @DATA(IT_J_7LKB32).
*--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_7LKB3 INDEX 1 INTO DATA(WA_J_7LKB32).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_7LKB3 ASSIGNING <J_7LKB3>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_7LKB3>-DATAB = 1.
<J_7LKB3>-DATBI = 1.
<J_7LKB3>-SOKOA = 1.
<J_7LKB3>-VRKME = 1.
<J_7LKB3>-VRPNR = 1.

ENDLOOP.

LOOP AT IT_J_7LKB3 INTO WA_J_7LKB3.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_7LKB3-VARIANTE, sy-vline,
  WA_J_7LKB3-STOFF, sy-vline,
  WA_J_7LKB3-REFSTOFF, sy-vline,
  WA_J_7LKB3-STOFP, sy-vline,
  WA_J_7LKB3-STOFI, sy-vline,
  WA_J_7LKB3-VPTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_7LKB3 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_7LKB3 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_7LKB3 INTO WA_J_7LKB3.


*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 CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKB3-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKB3-VRKME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field VRPNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKB3-VRPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKB3-VRPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKB3-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKB3-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEIV
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKB3-GEWEIV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKB3-GEWEIV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKB3-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKB3-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field OMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKB3-OMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKB3-OMEIN.
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_7LKB3_STR, 
DATAB TYPE STRING,
DATBI TYPE STRING,
SOKOA TYPE STRING,
VRKME TYPE STRING,
VRPNR TYPE STRING,
VARIANTE TYPE STRING,
STOFF TYPE STRING,
REFSTOFF TYPE STRING,
STOFP TYPE STRING,
STOFI TYPE STRING,
VPTYP TYPE STRING,
INFOK TYPE STRING,
VPARTG TYPE STRING,
VPEBENE TYPE STRING,
TRENNKZ TYPE STRING,
VRPKT TYPE STRING,
ZSPLITV TYPE STRING,
STGEW TYPE STRING,
STGEWFF TYPE STRING,
GEWEI TYPE STRING,
STGEWV TYPE STRING,
STGEWVFF TYPE STRING,
GEWEIV TYPE STRING,
GEWENTGE TYPE STRING,
GEWENTGR TYPE STRING,
GEWENTGA TYPE STRING,
GEWENTGEOA TYPE STRING,
GEWENTGROA TYPE STRING,
GEWENTGAOA TYPE STRING,
GEWENTGEF TYPE STRING,
GEWENTGRF TYPE STRING,
GEWENTGAF TYPE STRING,
GEWENTGEFF TYPE STRING,
GEWENTGRFF TYPE STRING,
GEWENTGAFF TYPE STRING,
GEWENTGEOAFF TYPE STRING,
GEWENTGROAFF TYPE STRING,
GEWENTGAOAFF TYPE STRING,
KPROZ_PRICE TYPE STRING,
FORMEL TYPE STRING,
FRMFRAK TYPE STRING,
STEXT TYPE STRING,
FAKTOR TYPE STRING,
FFAKTOR TYPE STRING,
LVORM TYPE STRING,
MEINS TYPE STRING,
FMENG TYPE STRING,
OMEIN TYPE STRING,
OMENG TYPE STRING,
NO_STOFE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_7LKB3_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_7LKB3_STR-DATAB sy-vline 
WA_J_7LKB3_STR-DATBI sy-vline 
WA_J_7LKB3_STR-SOKOA sy-vline 
WA_J_7LKB3_STR-VRKME sy-vline 
WA_J_7LKB3_STR-VRPNR sy-vline 
WA_J_7LKB3_STR-VARIANTE sy-vline 
WA_J_7LKB3_STR-STOFF sy-vline 
WA_J_7LKB3_STR-REFSTOFF sy-vline 
WA_J_7LKB3_STR-STOFP sy-vline 
WA_J_7LKB3_STR-STOFI sy-vline 
WA_J_7LKB3_STR-VPTYP sy-vline 
WA_J_7LKB3_STR-INFOK sy-vline 
WA_J_7LKB3_STR-VPARTG sy-vline 
WA_J_7LKB3_STR-VPEBENE sy-vline 
WA_J_7LKB3_STR-TRENNKZ sy-vline 
WA_J_7LKB3_STR-VRPKT sy-vline 
WA_J_7LKB3_STR-ZSPLITV sy-vline 
WA_J_7LKB3_STR-STGEW sy-vline 
WA_J_7LKB3_STR-STGEWFF sy-vline 
WA_J_7LKB3_STR-GEWEI sy-vline 
WA_J_7LKB3_STR-STGEWV sy-vline 
WA_J_7LKB3_STR-STGEWVFF sy-vline 
WA_J_7LKB3_STR-GEWEIV sy-vline 
WA_J_7LKB3_STR-GEWENTGE sy-vline 
WA_J_7LKB3_STR-GEWENTGR sy-vline 
WA_J_7LKB3_STR-GEWENTGA sy-vline 
WA_J_7LKB3_STR-GEWENTGEOA sy-vline 
WA_J_7LKB3_STR-GEWENTGROA sy-vline 
WA_J_7LKB3_STR-GEWENTGAOA sy-vline 
WA_J_7LKB3_STR-GEWENTGEF sy-vline 
WA_J_7LKB3_STR-GEWENTGRF sy-vline 
WA_J_7LKB3_STR-GEWENTGAF sy-vline 
WA_J_7LKB3_STR-GEWENTGEFF sy-vline 
WA_J_7LKB3_STR-GEWENTGRFF sy-vline 
WA_J_7LKB3_STR-GEWENTGAFF sy-vline 
WA_J_7LKB3_STR-GEWENTGEOAFF sy-vline 
WA_J_7LKB3_STR-GEWENTGROAFF sy-vline 
WA_J_7LKB3_STR-GEWENTGAOAFF sy-vline 
WA_J_7LKB3_STR-KPROZ_PRICE sy-vline 
WA_J_7LKB3_STR-FORMEL sy-vline 
WA_J_7LKB3_STR-FRMFRAK sy-vline 
WA_J_7LKB3_STR-STEXT sy-vline 
WA_J_7LKB3_STR-FAKTOR sy-vline 
WA_J_7LKB3_STR-FFAKTOR sy-vline 
WA_J_7LKB3_STR-LVORM sy-vline 
WA_J_7LKB3_STR-MEINS sy-vline 
WA_J_7LKB3_STR-FMENG sy-vline 
WA_J_7LKB3_STR-OMEIN sy-vline 
WA_J_7LKB3_STR-OMENG sy-vline 
WA_J_7LKB3_STR-NO_STOFE sy-vline      INTO ld_text SEPARATED BY SPACE.

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