ABAP Select data from SAP table J_7LIV01_V into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_7LIV01_V 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_7LIV01_V. 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_7LIV01_V 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_7LIV01_V TYPE STANDARD TABLE OF J_7LIV01_V,
      WA_J_7LIV01_V TYPE J_7LIV01_V,
      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_7LIV01_V> TYPE J_7LIV01_V.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_7LIV01_V.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_7LIV01_V
  INTO TABLE IT_J_7LIV01_V.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_7LIV01_V
*  INTO TABLE @DATA(IT_J_7LIV01_V2).
*--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_7LIV01_V INDEX 1 INTO DATA(WA_J_7LIV01_V2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_7LIV01_V ASSIGNING <J_7LIV01_V>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_7LIV01_V>-MANDT = 1.
<J_7LIV01_V>-VRPNR = 1.
<J_7LIV01_V>-SPRAS = 1.
<J_7LIV01_V>-ENTNR = 1.
<J_7LIV01_V>-BUKRS = 1.

ENDLOOP.

LOOP AT IT_J_7LIV01_V INTO WA_J_7LIV01_V.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_7LIV01_V-LAND1, sy-vline,
  WA_J_7LIV01_V-DATBI, sy-vline,
  WA_J_7LIV01_V-VPTYP, sy-vline,
  WA_J_7LIV01_V-VPARTG, sy-vline,
  WA_J_7LIV01_V-VPARTS, sy-vline,
  WA_J_7LIV01_V-TRENNKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_7LIV01_V 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_7LIV01_V 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_7LIV01_V INTO WA_J_7LIV01_V.


*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 VRPNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIV01_V-VRPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIV01_V-VRPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIV01_V-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIV01_V-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ENTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIV01_V-ENTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIV01_V-ENTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIV01_V-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIV01_V-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIV01_V-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIV01_V-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MUSTERVRPNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIV01_V-MUSTERVRPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIV01_V-MUSTERVRPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIV01_V-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIV01_V-VOLEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEABM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LIV01_V-MEABM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LIV01_V-MEABM.
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_7LIV01_V_STR, 
MANDT TYPE STRING,
VRPNR TYPE STRING,
SPRAS TYPE STRING,
ENTNR TYPE STRING,
BUKRS TYPE STRING,
LAND1 TYPE STRING,
DATBI TYPE STRING,
VPTYP TYPE STRING,
VPARTG TYPE STRING,
VPARTS TYPE STRING,
TRENNKZ TYPE STRING,
VPFORMTYP TYPE STRING,
VERSCHNITT TYPE STRING,
VPEBENE TYPE STRING,
MEINS TYPE STRING,
GEWEI TYPE STRING,
DATABADM TYPE STRING,
DATBIADM TYPE STRING,
ERSDAADM TYPE STRING,
ERZETADM TYPE STRING,
ERNAMADM TYPE STRING,
LAEDAADM TYPE STRING,
AEZETADM TYPE STRING,
AENAMADM TYPE STRING,
LVORV01 TYPE STRING,
LVORMARA TYPE STRING,
MAKTX TYPE STRING,
MAKTG TYPE STRING,
VPARTGD TYPE STRING,
VPARTSD TYPE STRING,
INFOK TYPE STRING,
FUELLG TYPE STRING,
ENTNA TYPE STRING,
DATAB TYPE STRING,
MUSTERVRPNR TYPE STRING,
VFLKL TYPE STRING,
SOKOA TYPE STRING,
HDLST TYPE STRING,
HDLSTN TYPE STRING,
HDLSTKO TYPE STRING,
VPGEW TYPE STRING,
VOLEH TYPE STRING,
VOLUM TYPE STRING,
MEABM TYPE STRING,
LAENG TYPE STRING,
BREIT TYPE STRING,
HOEHE TYPE STRING,
REUSE_PERIOD TYPE STRING,
REUSE_TOTAL TYPE STRING,
VVARIANTE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_7LIV01_V_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_7LIV01_V_STR-MANDT sy-vline 
WA_J_7LIV01_V_STR-VRPNR sy-vline 
WA_J_7LIV01_V_STR-SPRAS sy-vline 
WA_J_7LIV01_V_STR-ENTNR sy-vline 
WA_J_7LIV01_V_STR-BUKRS sy-vline 
WA_J_7LIV01_V_STR-LAND1 sy-vline 
WA_J_7LIV01_V_STR-DATBI sy-vline 
WA_J_7LIV01_V_STR-VPTYP sy-vline 
WA_J_7LIV01_V_STR-VPARTG sy-vline 
WA_J_7LIV01_V_STR-VPARTS sy-vline 
WA_J_7LIV01_V_STR-TRENNKZ sy-vline 
WA_J_7LIV01_V_STR-VPFORMTYP sy-vline 
WA_J_7LIV01_V_STR-VERSCHNITT sy-vline 
WA_J_7LIV01_V_STR-VPEBENE sy-vline 
WA_J_7LIV01_V_STR-MEINS sy-vline 
WA_J_7LIV01_V_STR-GEWEI sy-vline 
WA_J_7LIV01_V_STR-DATABADM sy-vline 
WA_J_7LIV01_V_STR-DATBIADM sy-vline 
WA_J_7LIV01_V_STR-ERSDAADM sy-vline 
WA_J_7LIV01_V_STR-ERZETADM sy-vline 
WA_J_7LIV01_V_STR-ERNAMADM sy-vline 
WA_J_7LIV01_V_STR-LAEDAADM sy-vline 
WA_J_7LIV01_V_STR-AEZETADM sy-vline 
WA_J_7LIV01_V_STR-AENAMADM sy-vline 
WA_J_7LIV01_V_STR-LVORV01 sy-vline 
WA_J_7LIV01_V_STR-LVORMARA sy-vline 
WA_J_7LIV01_V_STR-MAKTX sy-vline 
WA_J_7LIV01_V_STR-MAKTG sy-vline 
WA_J_7LIV01_V_STR-VPARTGD sy-vline 
WA_J_7LIV01_V_STR-VPARTSD sy-vline 
WA_J_7LIV01_V_STR-INFOK sy-vline 
WA_J_7LIV01_V_STR-FUELLG sy-vline 
WA_J_7LIV01_V_STR-ENTNA sy-vline 
WA_J_7LIV01_V_STR-DATAB sy-vline 
WA_J_7LIV01_V_STR-MUSTERVRPNR sy-vline 
WA_J_7LIV01_V_STR-VFLKL sy-vline 
WA_J_7LIV01_V_STR-SOKOA sy-vline 
WA_J_7LIV01_V_STR-HDLST sy-vline 
WA_J_7LIV01_V_STR-HDLSTN sy-vline 
WA_J_7LIV01_V_STR-HDLSTKO sy-vline 
WA_J_7LIV01_V_STR-VPGEW sy-vline 
WA_J_7LIV01_V_STR-VOLEH sy-vline 
WA_J_7LIV01_V_STR-VOLUM sy-vline 
WA_J_7LIV01_V_STR-MEABM sy-vline 
WA_J_7LIV01_V_STR-LAENG sy-vline 
WA_J_7LIV01_V_STR-BREIT sy-vline 
WA_J_7LIV01_V_STR-HOEHE sy-vline 
WA_J_7LIV01_V_STR-REUSE_PERIOD sy-vline 
WA_J_7LIV01_V_STR-REUSE_TOTAL sy-vline 
WA_J_7LIV01_V_STR-VVARIANTE sy-vline      INTO ld_text SEPARATED BY SPACE.

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