ABAP Select data from SAP table SEO_NA_CLS 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 SEO_NA_CLS 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 SEO_NA_CLS. 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 SEO_NA_CLS 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_SEO_NA_CLS TYPE STANDARD TABLE OF SEO_NA_CLS,
      WA_SEO_NA_CLS TYPE SEO_NA_CLS,
      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: <SEO_NA_CLS> TYPE SEO_NA_CLS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SEO_NA_CLS
*  INTO TABLE @DATA(IT_SEO_NA_CLS2).
*--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_SEO_NA_CLS INDEX 1 INTO DATA(WA_SEO_NA_CLS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SEO_NA_CLS>-CLSNAME = 1.
<SEO_NA_CLS>-VERSION = 1.
<SEO_NA_CLS>-LANGU = 1.
<SEO_NA_CLS>-DESCRIPT = 1.
<SEO_NA_CLS>-UUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SEO_NA_CLS-CATEGORY, sy-vline,
  WA_SEO_NA_CLS-EXPOSURE, sy-vline,
  WA_SEO_NA_CLS-STATE, sy-vline,
  WA_SEO_NA_CLS-RELEASE, sy-vline,
  WA_SEO_NA_CLS-AUTHOR, sy-vline,
  WA_SEO_NA_CLS-CREATEDON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SEO_NA_CLS 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_SEO_NA_CLS 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_SEO_NA_CLS INTO WA_SEO_NA_CLS.


*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 ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_SEO_NA_CLS-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SEO_NA_CLS-LANGU.
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_SEO_NA_CLS_STR, 
CLSNAME TYPE STRING,
VERSION TYPE STRING,
LANGU TYPE STRING,
DESCRIPT TYPE STRING,
UUID TYPE STRING,
CATEGORY TYPE STRING,
EXPOSURE TYPE STRING,
STATE TYPE STRING,
RELEASE TYPE STRING,
AUTHOR TYPE STRING,
CREATEDON TYPE STRING,
CHANGEDBY TYPE STRING,
CHANGEDON TYPE STRING,
CHGDANYBY TYPE STRING,
CHGDANYON TYPE STRING,
CLSEMBED TYPE STRING,
CLSABSTRCT TYPE STRING,
CLSFINAL TYPE STRING,
CLSCCINCL TYPE STRING,
REMOTE TYPE STRING,
FIXPT TYPE STRING,
VARCL TYPE STRING,
UNICODE TYPE STRING,
RSTAT TYPE STRING,
CLSDEFATT TYPE STRING,
CLSDEFMTD TYPE STRING,
CLSDEFINT TYPE STRING,
CLSBCIMPL TYPE STRING,
R3RELEASE TYPE STRING,
CLSBCTRANS TYPE STRING,
CLSBCCAT TYPE STRING,
CLSADDON TYPE STRING,
MSG_ID TYPE STRING,
CLSBCNODEL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SEO_NA_CLS_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_SEO_NA_CLS_STR-CLSNAME sy-vline 
WA_SEO_NA_CLS_STR-VERSION sy-vline 
WA_SEO_NA_CLS_STR-LANGU sy-vline 
WA_SEO_NA_CLS_STR-DESCRIPT sy-vline 
WA_SEO_NA_CLS_STR-UUID sy-vline 
WA_SEO_NA_CLS_STR-CATEGORY sy-vline 
WA_SEO_NA_CLS_STR-EXPOSURE sy-vline 
WA_SEO_NA_CLS_STR-STATE sy-vline 
WA_SEO_NA_CLS_STR-RELEASE sy-vline 
WA_SEO_NA_CLS_STR-AUTHOR sy-vline 
WA_SEO_NA_CLS_STR-CREATEDON sy-vline 
WA_SEO_NA_CLS_STR-CHANGEDBY sy-vline 
WA_SEO_NA_CLS_STR-CHANGEDON sy-vline 
WA_SEO_NA_CLS_STR-CHGDANYBY sy-vline 
WA_SEO_NA_CLS_STR-CHGDANYON sy-vline 
WA_SEO_NA_CLS_STR-CLSEMBED sy-vline 
WA_SEO_NA_CLS_STR-CLSABSTRCT sy-vline 
WA_SEO_NA_CLS_STR-CLSFINAL sy-vline 
WA_SEO_NA_CLS_STR-CLSCCINCL sy-vline 
WA_SEO_NA_CLS_STR-REMOTE sy-vline 
WA_SEO_NA_CLS_STR-FIXPT sy-vline 
WA_SEO_NA_CLS_STR-VARCL sy-vline 
WA_SEO_NA_CLS_STR-UNICODE sy-vline 
WA_SEO_NA_CLS_STR-RSTAT sy-vline 
WA_SEO_NA_CLS_STR-CLSDEFATT sy-vline 
WA_SEO_NA_CLS_STR-CLSDEFMTD sy-vline 
WA_SEO_NA_CLS_STR-CLSDEFINT sy-vline 
WA_SEO_NA_CLS_STR-CLSBCIMPL sy-vline 
WA_SEO_NA_CLS_STR-R3RELEASE sy-vline 
WA_SEO_NA_CLS_STR-CLSBCTRANS sy-vline 
WA_SEO_NA_CLS_STR-CLSBCCAT sy-vline 
WA_SEO_NA_CLS_STR-CLSADDON sy-vline 
WA_SEO_NA_CLS_STR-MSG_ID sy-vline 
WA_SEO_NA_CLS_STR-CLSBCNODEL sy-vline      INTO ld_text SEPARATED BY SPACE.

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