ABAP Select data from SAP table J_7LIZFV_V_CW into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_7LIZFV_V_CW 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_7LIZFV_V_CW. 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_7LIZFV_V_CW 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_7LIZFV_V_CW TYPE STANDARD TABLE OF J_7LIZFV_V_CW,
      WA_J_7LIZFV_V_CW TYPE J_7LIZFV_V_CW,
      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_7LIZFV_V_CW> TYPE J_7LIZFV_V_CW.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_7LIZFV_V_CW.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_7LIZFV_V_CW
  INTO TABLE IT_J_7LIZFV_V_CW.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_7LIZFV_V_CW
*  INTO TABLE @DATA(IT_J_7LIZFV_V_CW2).
*--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_7LIZFV_V_CW INDEX 1 INTO DATA(WA_J_7LIZFV_V_CW2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_7LIZFV_V_CW ASSIGNING <J_7LIZFV_V_CW>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_7LIZFV_V_CW>-MANDT = 1.
<J_7LIZFV_V_CW>-STOFI = 1.
<J_7LIZFV_V_CW>-SPRASV = 1.
<J_7LIZFV_V_CW>-DATBI = 1.
<J_7LIZFV_V_CW>-VRPNR = 1.

ENDLOOP.

LOOP AT IT_J_7LIZFV_V_CW INTO WA_J_7LIZFV_V_CW.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_7LIZFV_V_CW-VVARIANTE, sy-vline,
  WA_J_7LIZFV_V_CW-STOKL, sy-vline,
  WA_J_7LIZFV_V_CW-GSTFN, sy-vline,
  WA_J_7LIZFV_V_CW-STOKTX, sy-vline,
  WA_J_7LIZFV_V_CW-STOKTG, sy-vline,
  WA_J_7LIZFV_V_CW-DATAB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_7LIZFV_V_CW 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_7LIZFV_V_CW 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_7LIZFV_V_CW INTO WA_J_7LIZFV_V_CW.


*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 ISOLA, internal->external for field SPRASV
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIZFV_V_CW-SPRASV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIZFV_V_CW-SPRASV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field VRPNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIZFV_V_CW-VRPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIZFV_V_CW-VRPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN3, internal->external for field GSTFN
CALL FUNCTION 'CONVERSION_EXIT_MATN3_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIZFV_V_CW-GSTFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIZFV_V_CW-GSTFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIZFV_V_CW-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIZFV_V_CW-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MUSTERVRPNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIZFV_V_CW-MUSTERVRPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIZFV_V_CW-MUSTERVRPNR.
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_7LIZFV_V_CW_STR, 
MANDT TYPE STRING,
STOFI TYPE STRING,
SPRASV TYPE STRING,
DATBI TYPE STRING,
VRPNR TYPE STRING,
VVARIANTE TYPE STRING,
STOKL TYPE STRING,
GSTFN TYPE STRING,
STOKTX TYPE STRING,
STOKTG TYPE STRING,
DATAB TYPE STRING,
VRSIO TYPE STRING,
STGEW TYPE STRING,
GEWEI TYPE STRING,
VPTYP TYPE STRING,
VPARTG TYPE STRING,
VPARTS TYPE STRING,
TRENNKZ TYPE STRING,
VPFORMTYP TYPE STRING,
VERSCHNITT TYPE STRING,
VPKTX TYPE STRING,
VPKTG TYPE STRING,
VPEBENE TYPE STRING,
MUSTERVRPNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_7LIZFV_V_CW_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_7LIZFV_V_CW_STR-MANDT sy-vline 
WA_J_7LIZFV_V_CW_STR-STOFI sy-vline 
WA_J_7LIZFV_V_CW_STR-SPRASV sy-vline 
WA_J_7LIZFV_V_CW_STR-DATBI sy-vline 
WA_J_7LIZFV_V_CW_STR-VRPNR sy-vline 
WA_J_7LIZFV_V_CW_STR-VVARIANTE sy-vline 
WA_J_7LIZFV_V_CW_STR-STOKL sy-vline 
WA_J_7LIZFV_V_CW_STR-GSTFN sy-vline 
WA_J_7LIZFV_V_CW_STR-STOKTX sy-vline 
WA_J_7LIZFV_V_CW_STR-STOKTG sy-vline 
WA_J_7LIZFV_V_CW_STR-DATAB sy-vline 
WA_J_7LIZFV_V_CW_STR-VRSIO sy-vline 
WA_J_7LIZFV_V_CW_STR-STGEW sy-vline 
WA_J_7LIZFV_V_CW_STR-GEWEI sy-vline 
WA_J_7LIZFV_V_CW_STR-VPTYP sy-vline 
WA_J_7LIZFV_V_CW_STR-VPARTG sy-vline 
WA_J_7LIZFV_V_CW_STR-VPARTS sy-vline 
WA_J_7LIZFV_V_CW_STR-TRENNKZ sy-vline 
WA_J_7LIZFV_V_CW_STR-VPFORMTYP sy-vline 
WA_J_7LIZFV_V_CW_STR-VERSCHNITT sy-vline 
WA_J_7LIZFV_V_CW_STR-VPKTX sy-vline 
WA_J_7LIZFV_V_CW_STR-VPKTG sy-vline 
WA_J_7LIZFV_V_CW_STR-VPEBENE sy-vline 
WA_J_7LIZFV_V_CW_STR-MUSTERVRPNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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