ABAP Select data from SAP table RPLSVWD0_ALV_SVLIST into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RPLSVWD0_ALV_SVLIST 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 RPLSVWD0_ALV_SVLIST. 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 RPLSVWD0_ALV_SVLIST 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_RPLSVWD0_ALV_SVLIST TYPE STANDARD TABLE OF RPLSVWD0_ALV_SVLIST,
      WA_RPLSVWD0_ALV_SVLIST TYPE RPLSVWD0_ALV_SVLIST,
      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: <RPLSVWD0_ALV_SVLIST> TYPE RPLSVWD0_ALV_SVLIST.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RPLSVWD0_ALV_SVLIST.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RPLSVWD0_ALV_SVLIST
  INTO TABLE IT_RPLSVWD0_ALV_SVLIST.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPLSVWD0_ALV_SVLIST
*  INTO TABLE @DATA(IT_RPLSVWD0_ALV_SVLIST2).
*--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_RPLSVWD0_ALV_SVLIST INDEX 1 INTO DATA(WA_RPLSVWD0_ALV_SVLIST2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RPLSVWD0_ALV_SVLIST ASSIGNING <RPLSVWD0_ALV_SVLIST>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPLSVWD0_ALV_SVLIST>-SPARTE = 1.
<RPLSVWD0_ALV_SVLIST>-BETR1 = 1.
<RPLSVWD0_ALV_SVLIST>-BETR2 = 1.
<RPLSVWD0_ALV_SVLIST>-BETR3 = 1.
<RPLSVWD0_ALV_SVLIST>-BETR4 = 1.

ENDLOOP.

LOOP AT IT_RPLSVWD0_ALV_SVLIST INTO WA_RPLSVWD0_ALV_SVLIST.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPLSVWD0_ALV_SVLIST-BETR5, sy-vline,
  WA_RPLSVWD0_ALV_SVLIST-BETR6, sy-vline,
  WA_RPLSVWD0_ALV_SVLIST-BETR7, sy-vline,
  WA_RPLSVWD0_ALV_SVLIST-BETR8, sy-vline,
  WA_RPLSVWD0_ALV_SVLIST-BETR9, sy-vline,
  WA_RPLSVWD0_ALV_SVLIST-BETR10, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPLSVWD0_ALV_SVLIST 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_RPLSVWD0_ALV_SVLIST 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_RPLSVWD0_ALV_SVLIST INTO WA_RPLSVWD0_ALV_SVLIST.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RPLSVWD0_ALV_SVLIST_STR, 
SPARTE TYPE STRING,
BETR1 TYPE STRING,
BETR2 TYPE STRING,
BETR3 TYPE STRING,
BETR4 TYPE STRING,
BETR5 TYPE STRING,
BETR6 TYPE STRING,
BETR7 TYPE STRING,
BETR8 TYPE STRING,
BETR9 TYPE STRING,
BETR10 TYPE STRING,
BETR11 TYPE STRING,
BETR12 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPLSVWD0_ALV_SVLIST_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_RPLSVWD0_ALV_SVLIST_STR-SPARTE sy-vline 
WA_RPLSVWD0_ALV_SVLIST_STR-BETR1 sy-vline 
WA_RPLSVWD0_ALV_SVLIST_STR-BETR2 sy-vline 
WA_RPLSVWD0_ALV_SVLIST_STR-BETR3 sy-vline 
WA_RPLSVWD0_ALV_SVLIST_STR-BETR4 sy-vline 
WA_RPLSVWD0_ALV_SVLIST_STR-BETR5 sy-vline 
WA_RPLSVWD0_ALV_SVLIST_STR-BETR6 sy-vline 
WA_RPLSVWD0_ALV_SVLIST_STR-BETR7 sy-vline 
WA_RPLSVWD0_ALV_SVLIST_STR-BETR8 sy-vline 
WA_RPLSVWD0_ALV_SVLIST_STR-BETR9 sy-vline 
WA_RPLSVWD0_ALV_SVLIST_STR-BETR10 sy-vline 
WA_RPLSVWD0_ALV_SVLIST_STR-BETR11 sy-vline 
WA_RPLSVWD0_ALV_SVLIST_STR-BETR12 sy-vline      INTO ld_text SEPARATED BY SPACE.

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