ABAP Select data from SAP table J_7LKB2 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_7LKB2 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_7LKB2. 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_7LKB2 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_7LKB2 TYPE STANDARD TABLE OF J_7LKB2,
      WA_J_7LKB2 TYPE J_7LKB2,
      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_7LKB2> TYPE J_7LKB2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_7LKB2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_7LKB2
  INTO TABLE IT_J_7LKB2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_7LKB2
*  INTO TABLE @DATA(IT_J_7LKB22).
*--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_7LKB2 INDEX 1 INTO DATA(WA_J_7LKB22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_7LKB2 ASSIGNING <J_7LKB2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_7LKB2>-DATAB = 1.
<J_7LKB2>-DATBI = 1.
<J_7LKB2>-SOKOA = 1.
<J_7LKB2>-VRKME = 1.
<J_7LKB2>-VRPNR = 1.

ENDLOOP.

LOOP AT IT_J_7LKB2 INTO WA_J_7LKB2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_7LKB2-VARIANTE, sy-vline,
  WA_J_7LKB2-VPTYP, sy-vline,
  WA_J_7LKB2-STFVRSIO, sy-vline,
  WA_J_7LKB2-ENTVRSIO, sy-vline,
  WA_J_7LKB2-ZSPLITV, sy-vline,
  WA_J_7LKB2-VFLKL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_7LKB2 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_7LKB2 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_7LKB2 INTO WA_J_7LKB2.


*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_7LKB2-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKB2-VRKME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field VRPNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKB2-VRPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKB2-VRPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKB2-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKB2-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKB2-BASME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKB2-BASME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field OMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKB2-OMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKB2-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_7LKB2_STR, 
DATAB TYPE STRING,
DATBI TYPE STRING,
SOKOA TYPE STRING,
VRKME TYPE STRING,
VRPNR TYPE STRING,
VARIANTE TYPE STRING,
VPTYP TYPE STRING,
STFVRSIO TYPE STRING,
ENTVRSIO TYPE STRING,
ZSPLITV TYPE STRING,
VFLKL TYPE STRING,
INFOK TYPE STRING,
FUELLG TYPE STRING,
HDLST TYPE STRING,
HDLSTN TYPE STRING,
VPEBENE TYPE STRING,
MEINS TYPE STRING,
FMENG TYPE STRING,
FMENGR TYPE STRING,
MENGE TYPE STRING,
BASME TYPE STRING,
OMENG TYPE STRING,
OMEIN TYPE STRING,
STKENTGE TYPE STRING,
STKENTGR TYPE STRING,
STKENTGA TYPE STRING,
STKENTGEOA TYPE STRING,
STKENTGROA TYPE STRING,
STKENTGAOA TYPE STRING,
STKENTGEF TYPE STRING,
STKENTGRF TYPE STRING,
STKENTGAF TYPE STRING,
FORMEL TYPE STRING,
FAKTOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_7LKB2_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_7LKB2_STR-DATAB sy-vline 
WA_J_7LKB2_STR-DATBI sy-vline 
WA_J_7LKB2_STR-SOKOA sy-vline 
WA_J_7LKB2_STR-VRKME sy-vline 
WA_J_7LKB2_STR-VRPNR sy-vline 
WA_J_7LKB2_STR-VARIANTE sy-vline 
WA_J_7LKB2_STR-VPTYP sy-vline 
WA_J_7LKB2_STR-STFVRSIO sy-vline 
WA_J_7LKB2_STR-ENTVRSIO sy-vline 
WA_J_7LKB2_STR-ZSPLITV sy-vline 
WA_J_7LKB2_STR-VFLKL sy-vline 
WA_J_7LKB2_STR-INFOK sy-vline 
WA_J_7LKB2_STR-FUELLG sy-vline 
WA_J_7LKB2_STR-HDLST sy-vline 
WA_J_7LKB2_STR-HDLSTN sy-vline 
WA_J_7LKB2_STR-VPEBENE sy-vline 
WA_J_7LKB2_STR-MEINS sy-vline 
WA_J_7LKB2_STR-FMENG sy-vline 
WA_J_7LKB2_STR-FMENGR sy-vline 
WA_J_7LKB2_STR-MENGE sy-vline 
WA_J_7LKB2_STR-BASME sy-vline 
WA_J_7LKB2_STR-OMENG sy-vline 
WA_J_7LKB2_STR-OMEIN sy-vline 
WA_J_7LKB2_STR-STKENTGE sy-vline 
WA_J_7LKB2_STR-STKENTGR sy-vline 
WA_J_7LKB2_STR-STKENTGA sy-vline 
WA_J_7LKB2_STR-STKENTGEOA sy-vline 
WA_J_7LKB2_STR-STKENTGROA sy-vline 
WA_J_7LKB2_STR-STKENTGAOA sy-vline 
WA_J_7LKB2_STR-STKENTGEF sy-vline 
WA_J_7LKB2_STR-STKENTGRF sy-vline 
WA_J_7LKB2_STR-STKENTGAF sy-vline 
WA_J_7LKB2_STR-FORMEL sy-vline 
WA_J_7LKB2_STR-FAKTOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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