ABAP Select data from SAP table NONBSEG into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP NONBSEG 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 NONBSEG. 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 NONBSEG 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_NONBSEG TYPE STANDARD TABLE OF NONBSEG,
      WA_NONBSEG TYPE NONBSEG,
      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: <NONBSEG> TYPE NONBSEG.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM NONBSEG
*  INTO TABLE @DATA(IT_NONBSEG2).
*--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_NONBSEG INDEX 1 INTO DATA(WA_NONBSEG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<NONBSEG>-KONTO = 1.
<NONBSEG>-KONTO_TXT = 1.
<NONBSEG>-EOBJ = 1.
<NONBSEG>-IOBJ = 1.
<NONBSEG>-ACROBJ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_NONBSEG-STATE, sy-vline,
  WA_NONBSEG-LTEXT, sy-vline,
  WA_NONBSEG-MARKSP, sy-vline,
  WA_NONBSEG-FKEY, sy-vline,
  WA_NONBSEG-SWENR, sy-vline,
  WA_NONBSEG-SGENR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_NONBSEG 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_NONBSEG 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_NONBSEG INTO WA_NONBSEG.


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

*Conversion exit SWENR, internal->external for field SWENR
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_NONBSEG-SWENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NONBSEG-SWENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGENR, internal->external for field SGENR
CALL FUNCTION 'CONVERSION_EXIT_SGENR_OUTPUT'
  EXPORTING
    input =                      WA_NONBSEG-SGENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NONBSEG-SGENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGRNR, internal->external for field SGRNR
CALL FUNCTION 'CONVERSION_EXIT_SGRNR_OUTPUT'
  EXPORTING
    input =                      WA_NONBSEG-SGRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NONBSEG-SGRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SMENR, internal->external for field SMENR
CALL FUNCTION 'CONVERSION_EXIT_SMENR_OUTPUT'
  EXPORTING
    input =                      WA_NONBSEG-SMENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NONBSEG-SMENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SMIVE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_NONBSEG-SMIVE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NONBSEG-SMIVE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SNKSL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_NONBSEG-SNKSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NONBSEG-SNKSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEMPSL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_NONBSEG-SEMPSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NONBSEG-SEMPSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SVWNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_NONBSEG-SVWNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NONBSEG-SVWNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_NONBSEG-RECNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NONBSEG-RECNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SBERI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_NONBSEG-SBERI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NONBSEG-SBERI.
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_NONBSEG_STR, 
KONTO TYPE STRING,
KONTO_TXT TYPE STRING,
EOBJ TYPE STRING,
IOBJ TYPE STRING,
ACROBJ TYPE STRING,
STATE TYPE STRING,
LTEXT TYPE STRING,
MARKSP TYPE STRING,
FKEY TYPE STRING,
SWENR TYPE STRING,
SGENR TYPE STRING,
SGRNR TYPE STRING,
SMENR TYPE STRING,
SMIVE TYPE STRING,
SNKSL TYPE STRING,
SEMPSL TYPE STRING,
SVWNR TYPE STRING,
RECNNR TYPE STRING,
SBERI TYPE STRING,
FIKRS TYPE STRING,
TAXCODE_TXT TYPE STRING,
LONGNUM TYPE STRING,
USKEYICON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_NONBSEG_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_NONBSEG_STR-KONTO sy-vline 
WA_NONBSEG_STR-KONTO_TXT sy-vline 
WA_NONBSEG_STR-EOBJ sy-vline 
WA_NONBSEG_STR-IOBJ sy-vline 
WA_NONBSEG_STR-ACROBJ sy-vline 
WA_NONBSEG_STR-STATE sy-vline 
WA_NONBSEG_STR-LTEXT sy-vline 
WA_NONBSEG_STR-MARKSP sy-vline 
WA_NONBSEG_STR-FKEY sy-vline 
WA_NONBSEG_STR-SWENR sy-vline 
WA_NONBSEG_STR-SGENR sy-vline 
WA_NONBSEG_STR-SGRNR sy-vline 
WA_NONBSEG_STR-SMENR sy-vline 
WA_NONBSEG_STR-SMIVE sy-vline 
WA_NONBSEG_STR-SNKSL sy-vline 
WA_NONBSEG_STR-SEMPSL sy-vline 
WA_NONBSEG_STR-SVWNR sy-vline 
WA_NONBSEG_STR-RECNNR sy-vline 
WA_NONBSEG_STR-SBERI sy-vline 
WA_NONBSEG_STR-FIKRS sy-vline 
WA_NONBSEG_STR-TAXCODE_TXT sy-vline 
WA_NONBSEG_STR-LONGNUM sy-vline 
WA_NONBSEG_STR-USKEYICON sy-vline      INTO ld_text SEPARATED BY SPACE.

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