ABAP Select data from SAP table VVS401 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VVS401 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 VVS401. 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 VVS401 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_VVS401 TYPE STANDARD TABLE OF VVS401,
      WA_VVS401 TYPE VVS401,
      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: <VVS401> TYPE VVS401.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VVS401.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VVS401
  INTO TABLE IT_VVS401.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VVS401
*  INTO TABLE @DATA(IT_VVS4012).
*--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_VVS401 INDEX 1 INTO DATA(WA_VVS4012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VVS401 ASSIGNING <VVS401>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VVS401>-PARTNR = 1.
<VVS401>-ROLE = 1.
<VVS401>-BUKRS = 1.
<VVS401>-SWENR = 1.
<VVS401>-SGRNR = 1.

ENDLOOP.

LOOP AT IT_VVS401 INTO WA_VVS401.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VVS401-SGENR, sy-vline,
  WA_VVS401-SMENR, sy-vline,
  WA_VVS401-SMIVE, sy-vline,
  WA_VVS401-E_SMIVE, sy-vline,
  WA_VVS401-XWETEXT, sy-vline,
  WA_VVS401-XGRTXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VVS401 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_VVS401 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_VVS401 INTO WA_VVS401.


*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 ALPHA, internal->external for field PARTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VVS401-PARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVS401-PARTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SWENR, internal->external for field SWENR
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_VVS401-SWENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVS401-SWENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGRNR, internal->external for field SGRNR
CALL FUNCTION 'CONVERSION_EXIT_SGRNR_OUTPUT'
  EXPORTING
    input =                      WA_VVS401-SGRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVS401-SGRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGENR, internal->external for field SGENR
CALL FUNCTION 'CONVERSION_EXIT_SGENR_OUTPUT'
  EXPORTING
    input =                      WA_VVS401-SGENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVS401-SGENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SMENR, internal->external for field SMENR
CALL FUNCTION 'CONVERSION_EXIT_SMENR_OUTPUT'
  EXPORTING
    input =                      WA_VVS401-SMENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVS401-SMENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SMIVE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VVS401-SMIVE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVS401-SMIVE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field E_SMIVE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VVS401-E_SMIVE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVS401-E_SMIVE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VVS401-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVS401-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VVS401-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVS401-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_VVS401-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVS401-LANGU.
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_VVS401_STR, 
PARTNR TYPE STRING,
ROLE TYPE STRING,
BUKRS TYPE STRING,
SWENR TYPE STRING,
SGRNR TYPE STRING,
SGENR TYPE STRING,
SMENR TYPE STRING,
SMIVE TYPE STRING,
E_SMIVE TYPE STRING,
XWETEXT TYPE STRING,
XGRTXT TYPE STRING,
XGETXT TYPE STRING,
XMETXT TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
TYPE TYPE STRING,
GROUP_ID TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
NAME_LAST TYPE STRING,
NAME_FIRST TYPE STRING,
LANGU TYPE STRING,
TITLE TYPE STRING,
TITLE_LET TYPE STRING,
XORT TYPE STRING,
XPLZ TYPE STRING,
XSTRASSE TYPE STRING,
ANZPT TYPE STRING,
TITLE_AC TYPE STRING,
N_PREFIX TYPE STRING,
N_ADDITION TYPE STRING,
NICKNAME TYPE STRING,
SEX TYPE STRING,
PROFESSION TYPE STRING,
NATION TYPE STRING,
STATE TYPE STRING,
PERS_NR TYPE STRING,
STAFF_GRP TYPE STRING,
HR_ORG_REF TYPE STRING,
XUBNAME TYPE STRING,
STAFF_REF TYPE STRING,
ADR_REF_K TYPE STRING,
ADR_DAT TYPE STRING,
ADRNR TYPE STRING,
ADR_D_E TYPE STRING,
ADR_LOC TYPE STRING,
FLOOR TYPE STRING,
ROOM_NR TYPE STRING,
XOBJTXT TYPE STRING,
DBEBEZ TYPE STRING,
DENBEZ TYPE STRING,
ROLETYP TYPE STRING,
LAND1 TYPE STRING,
XORT2 TYPE STRING,
PSTBZ TYPE STRING,
REGIO TYPE STRING,
XSTRASSE2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VVS401_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_VVS401_STR-PARTNR sy-vline 
WA_VVS401_STR-ROLE sy-vline 
WA_VVS401_STR-BUKRS sy-vline 
WA_VVS401_STR-SWENR sy-vline 
WA_VVS401_STR-SGRNR sy-vline 
WA_VVS401_STR-SGENR sy-vline 
WA_VVS401_STR-SMENR sy-vline 
WA_VVS401_STR-SMIVE sy-vline 
WA_VVS401_STR-E_SMIVE sy-vline 
WA_VVS401_STR-XWETEXT sy-vline 
WA_VVS401_STR-XGRTXT sy-vline 
WA_VVS401_STR-XGETXT sy-vline 
WA_VVS401_STR-XMETXT sy-vline 
WA_VVS401_STR-KUNNR sy-vline 
WA_VVS401_STR-LIFNR sy-vline 
WA_VVS401_STR-TYPE sy-vline 
WA_VVS401_STR-GROUP_ID sy-vline 
WA_VVS401_STR-NAME1 sy-vline 
WA_VVS401_STR-NAME2 sy-vline 
WA_VVS401_STR-NAME_LAST sy-vline 
WA_VVS401_STR-NAME_FIRST sy-vline 
WA_VVS401_STR-LANGU sy-vline 
WA_VVS401_STR-TITLE sy-vline 
WA_VVS401_STR-TITLE_LET sy-vline 
WA_VVS401_STR-XORT sy-vline 
WA_VVS401_STR-XPLZ sy-vline 
WA_VVS401_STR-XSTRASSE sy-vline 
WA_VVS401_STR-ANZPT sy-vline 
WA_VVS401_STR-TITLE_AC sy-vline 
WA_VVS401_STR-N_PREFIX sy-vline 
WA_VVS401_STR-N_ADDITION sy-vline 
WA_VVS401_STR-NICKNAME sy-vline 
WA_VVS401_STR-SEX sy-vline 
WA_VVS401_STR-PROFESSION sy-vline 
WA_VVS401_STR-NATION sy-vline 
WA_VVS401_STR-STATE sy-vline 
WA_VVS401_STR-PERS_NR sy-vline 
WA_VVS401_STR-STAFF_GRP sy-vline 
WA_VVS401_STR-HR_ORG_REF sy-vline 
WA_VVS401_STR-XUBNAME sy-vline 
WA_VVS401_STR-STAFF_REF sy-vline 
WA_VVS401_STR-ADR_REF_K sy-vline 
WA_VVS401_STR-ADR_DAT sy-vline 
WA_VVS401_STR-ADRNR sy-vline 
WA_VVS401_STR-ADR_D_E sy-vline 
WA_VVS401_STR-ADR_LOC sy-vline 
WA_VVS401_STR-FLOOR sy-vline 
WA_VVS401_STR-ROOM_NR sy-vline 
WA_VVS401_STR-XOBJTXT sy-vline 
WA_VVS401_STR-DBEBEZ sy-vline 
WA_VVS401_STR-DENBEZ sy-vline 
WA_VVS401_STR-ROLETYP sy-vline 
WA_VVS401_STR-LAND1 sy-vline 
WA_VVS401_STR-XORT2 sy-vline 
WA_VVS401_STR-PSTBZ sy-vline 
WA_VVS401_STR-REGIO sy-vline 
WA_VVS401_STR-XSTRASSE2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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