ABAP Select data from SAP table SETVL into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SETVL
*  INTO TABLE @DATA(IT_SETVL2).
*--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_SETVL INDEX 1 INTO DATA(WA_SETVL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SETVL>-SEQNR = 1.
<SETVL>-LINE = 1.
<SETVL>-LEVEL = 1.
<SETVL>-FIELD = 1.
<SETVL>-FROM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SETVL-TO, sy-vline,
  WA_SETVL-FLAG, sy-vline,
  WA_SETVL-PUP, sy-vline,
  WA_SETVL-PPREV, sy-vline,
  WA_SETVL-MAXPTUP, sy-vline,
  WA_SETVL-MAXPUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SETVL 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_SETVL 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_SETVL INTO WA_SETVL.


*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_SETVL_STR, 
SEQNR TYPE STRING,
LINE TYPE STRING,
LEVEL TYPE STRING,
FIELD TYPE STRING,
FROM TYPE STRING,
TO TYPE STRING,
FLAG TYPE STRING,
PUP TYPE STRING,
PPREV TYPE STRING,
MAXPTUP TYPE STRING,
MAXPUP TYPE STRING,
MAXLINE TYPE STRING,
PRTCLASS TYPE STRING,
TEXT TYPE STRING,
PDOWN TYPE STRING,
OCOUNT TYPE STRING,
PUSED TYPE STRING,
IFLAG TYPE STRING,
FPDOWN TYPE STRING,
PMFLAG TYPE STRING,
LNAME TYPE STRING,
TEXTNR TYPE STRING,
ZPFLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SETVL_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_SETVL_STR-SEQNR sy-vline 
WA_SETVL_STR-LINE sy-vline 
WA_SETVL_STR-LEVEL sy-vline 
WA_SETVL_STR-FIELD sy-vline 
WA_SETVL_STR-FROM sy-vline 
WA_SETVL_STR-TO sy-vline 
WA_SETVL_STR-FLAG sy-vline 
WA_SETVL_STR-PUP sy-vline 
WA_SETVL_STR-PPREV sy-vline 
WA_SETVL_STR-MAXPTUP sy-vline 
WA_SETVL_STR-MAXPUP sy-vline 
WA_SETVL_STR-MAXLINE sy-vline 
WA_SETVL_STR-PRTCLASS sy-vline 
WA_SETVL_STR-TEXT sy-vline 
WA_SETVL_STR-PDOWN sy-vline 
WA_SETVL_STR-OCOUNT sy-vline 
WA_SETVL_STR-PUSED sy-vline 
WA_SETVL_STR-IFLAG sy-vline 
WA_SETVL_STR-FPDOWN sy-vline 
WA_SETVL_STR-PMFLAG sy-vline 
WA_SETVL_STR-LNAME sy-vline 
WA_SETVL_STR-TEXTNR sy-vline 
WA_SETVL_STR-ZPFLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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