ABAP Select data from SAP table SETVALUES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SETVALUES
*  INTO TABLE @DATA(IT_SETVALUES2).
*--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_SETVALUES INDEX 1 INTO DATA(WA_SETVALUES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SETVALUES>-FROM = 1.
<SETVALUES>-TO = 1.
<SETVALUES>-OLD_LINE = 1.
<SETVALUES>-XSUPPRESS = 1.
<SETVALUES>-PMFLAG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SETVALUES-LNAME, sy-vline,
  WA_SETVALUES-PFLAG, sy-vline,
  WA_SETVALUES-PRTCLASS, sy-vline,
  WA_SETVALUES-FORMULA, sy-vline,
  WA_SETVALUES-PFEED, sy-vline,
  WA_SETVALUES-LFIELDNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SETVALUES 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_SETVALUES 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_SETVALUES INTO WA_SETVALUES.


*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_SETVALUES_STR, 
FROM TYPE STRING,
TO TYPE STRING,
OLD_LINE TYPE STRING,
XSUPPRESS TYPE STRING,
PMFLAG TYPE STRING,
LNAME TYPE STRING,
PFLAG TYPE STRING,
PRTCLASS TYPE STRING,
FORMULA TYPE STRING,
PFEED TYPE STRING,
LFIELDNAME TYPE STRING,
DESCRIPT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SETVALUES_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_SETVALUES_STR-FROM sy-vline 
WA_SETVALUES_STR-TO sy-vline 
WA_SETVALUES_STR-OLD_LINE sy-vline 
WA_SETVALUES_STR-XSUPPRESS sy-vline 
WA_SETVALUES_STR-PMFLAG sy-vline 
WA_SETVALUES_STR-LNAME sy-vline 
WA_SETVALUES_STR-PFLAG sy-vline 
WA_SETVALUES_STR-PRTCLASS sy-vline 
WA_SETVALUES_STR-FORMULA sy-vline 
WA_SETVALUES_STR-PFEED sy-vline 
WA_SETVALUES_STR-LFIELDNAME sy-vline 
WA_SETVALUES_STR-DESCRIPT sy-vline      INTO ld_text SEPARATED BY SPACE.

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