ABAP Select data from SAP table VVSCCLINFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VVSCCLINFO
*  INTO TABLE @DATA(IT_VVSCCLINFO2).
*--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_VVSCCLINFO INDEX 1 INTO DATA(WA_VVSCCLINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VVSCCLINFO>-MANDT = 1.
<VVSCCLINFO>-OPBEL = 1.
<VVSCCLINFO>-OPUPW = 1.
<VVSCCLINFO>-OPUPK = 1.
<VVSCCLINFO>-OPUPZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VVSCCLINFO-AUGBL, sy-vline,
  WA_VVSCCLINFO-AUGBD, sy-vline,
  WA_VVSCCLINFO-BETRW, sy-vline,
  WA_VVSCCLINFO-AUGBW, sy-vline,
  WA_VVSCCLINFO-NAUGW, sy-vline,
  WA_VVSCCLINFO-SKTOW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VVSCCLINFO 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_VVSCCLINFO 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_VVSCCLINFO INTO WA_VVSCCLINFO.


*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 OPBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VVSCCLINFO-OPBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVSCCLINFO-OPBEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUGBL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VVSCCLINFO-AUGBL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVSCCLINFO-AUGBL.
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_VVSCCLINFO_STR, 
MANDT TYPE STRING,
OPBEL TYPE STRING,
OPUPW TYPE STRING,
OPUPK TYPE STRING,
OPUPZ TYPE STRING,
AUGBL TYPE STRING,
AUGBD TYPE STRING,
BETRW TYPE STRING,
AUGBW TYPE STRING,
NAUGW TYPE STRING,
SKTOW TYPE STRING,
ASKTW TYPE STRING,
NETTW TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VVSCCLINFO_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_VVSCCLINFO_STR-MANDT sy-vline 
WA_VVSCCLINFO_STR-OPBEL sy-vline 
WA_VVSCCLINFO_STR-OPUPW sy-vline 
WA_VVSCCLINFO_STR-OPUPK sy-vline 
WA_VVSCCLINFO_STR-OPUPZ sy-vline 
WA_VVSCCLINFO_STR-AUGBL sy-vline 
WA_VVSCCLINFO_STR-AUGBD sy-vline 
WA_VVSCCLINFO_STR-BETRW sy-vline 
WA_VVSCCLINFO_STR-AUGBW sy-vline 
WA_VVSCCLINFO_STR-NAUGW sy-vline 
WA_VVSCCLINFO_STR-SKTOW sy-vline 
WA_VVSCCLINFO_STR-ASKTW sy-vline 
WA_VVSCCLINFO_STR-NETTW sy-vline 
WA_VVSCCLINFO_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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