ABAP Select data from SAP table VIITOR10HEAD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VIITOR10HEAD 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 VIITOR10HEAD. 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 VIITOR10HEAD 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_VIITOR10HEAD TYPE STANDARD TABLE OF VIITOR10HEAD,
      WA_VIITOR10HEAD TYPE VIITOR10HEAD,
      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: <VIITOR10HEAD> TYPE VIITOR10HEAD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VIITOR10HEAD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VIITOR10HEAD
  INTO TABLE IT_VIITOR10HEAD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VIITOR10HEAD
*  INTO TABLE @DATA(IT_VIITOR10HEAD2).
*--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_VIITOR10HEAD INDEX 1 INTO DATA(WA_VIITOR10HEAD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VIITOR10HEAD ASSIGNING <VIITOR10HEAD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VIITOR10HEAD>-BUKRS = 1.
<VIITOR10HEAD>-SWENR = 1.
<VIITOR10HEAD>-XWETEXT = 1.
<VIITOR10HEAD>-SGRNR = 1.
<VIITOR10HEAD>-XGRTXT = 1.

ENDLOOP.

LOOP AT IT_VIITOR10HEAD INTO WA_VIITOR10HEAD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VIITOR10HEAD-SGENR, sy-vline,
  WA_VIITOR10HEAD-XGETXT, sy-vline,
  WA_VIITOR10HEAD-SNKSL, sy-vline,
  WA_VIITOR10HEAD-XNKSL, sy-vline,
  WA_VIITOR10HEAD-XNKSLK, sy-vline,
  WA_VIITOR10HEAD-SEMPSL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VIITOR10HEAD 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_VIITOR10HEAD 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_VIITOR10HEAD INTO WA_VIITOR10HEAD.


*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 SWENR, internal->external for field SWENR
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_VIITOR10HEAD-SWENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIITOR10HEAD-SWENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGRNR, internal->external for field SGRNR
CALL FUNCTION 'CONVERSION_EXIT_SGRNR_OUTPUT'
  EXPORTING
    input =                      WA_VIITOR10HEAD-SGRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIITOR10HEAD-SGRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGENR, internal->external for field SGENR
CALL FUNCTION 'CONVERSION_EXIT_SGENR_OUTPUT'
  EXPORTING
    input =                      WA_VIITOR10HEAD-SGENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIITOR10HEAD-SGENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SNKSL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VIITOR10HEAD-SNKSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIITOR10HEAD-SNKSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEMPSL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VIITOR10HEAD-SEMPSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIITOR10HEAD-SEMPSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VIITOR10HEAD-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIITOR10HEAD-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VIITOR10HEAD-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIITOR10HEAD-ANLN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SBERI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VIITOR10HEAD-SBERI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIITOR10HEAD-SBERI.
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_VIITOR10HEAD_STR, 
BUKRS TYPE STRING,
SWENR TYPE STRING,
XWETEXT TYPE STRING,
SGRNR TYPE STRING,
XGRTXT TYPE STRING,
SGENR TYPE STRING,
XGETXT TYPE STRING,
SNKSL TYPE STRING,
XNKSL TYPE STRING,
XNKSLK TYPE STRING,
SEMPSL TYPE STRING,
XTEXTAE TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
TXT50 TYPE STRING,
TXA50 TYPE STRING,
SBERI TYPE STRING,
XBERIBZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VIITOR10HEAD_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_VIITOR10HEAD_STR-BUKRS sy-vline 
WA_VIITOR10HEAD_STR-SWENR sy-vline 
WA_VIITOR10HEAD_STR-XWETEXT sy-vline 
WA_VIITOR10HEAD_STR-SGRNR sy-vline 
WA_VIITOR10HEAD_STR-XGRTXT sy-vline 
WA_VIITOR10HEAD_STR-SGENR sy-vline 
WA_VIITOR10HEAD_STR-XGETXT sy-vline 
WA_VIITOR10HEAD_STR-SNKSL sy-vline 
WA_VIITOR10HEAD_STR-XNKSL sy-vline 
WA_VIITOR10HEAD_STR-XNKSLK sy-vline 
WA_VIITOR10HEAD_STR-SEMPSL sy-vline 
WA_VIITOR10HEAD_STR-XTEXTAE sy-vline 
WA_VIITOR10HEAD_STR-ANLN1 sy-vline 
WA_VIITOR10HEAD_STR-ANLN2 sy-vline 
WA_VIITOR10HEAD_STR-TXT50 sy-vline 
WA_VIITOR10HEAD_STR-TXA50 sy-vline 
WA_VIITOR10HEAD_STR-SBERI sy-vline 
WA_VIITOR10HEAD_STR-XBERIBZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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