ABAP Select data from SAP table TN10B into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TN10B 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 TN10B. 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 TN10B 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_TN10B TYPE STANDARD TABLE OF TN10B,
      WA_TN10B TYPE TN10B,
      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: <TN10B> TYPE TN10B.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TN10B.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TN10B
  INTO TABLE IT_TN10B.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TN10B
*  INTO TABLE @DATA(IT_TN10B2).
*--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_TN10B INDEX 1 INTO DATA(WA_TN10B2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TN10B ASSIGNING <TN10B>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TN10B>-MANDT = 1.
<TN10B>-ORGFA = 1.
<TN10B>-ORGPF = 1.
<TN10B>-RI_ENDDT = 1.
<TN10B>-RI_BEGDT = 1.

ENDLOOP.

LOOP AT IT_TN10B INTO WA_TN10B.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TN10B-PBSUM, sy-vline,
  WA_TN10B-PBKHG, sy-vline,
  WA_TN10B-PBHBFG, sy-vline,
  WA_TN10B-PBSON, sy-vline,
  WA_TN10B-ABSUM, sy-vline,
  WA_TN10B-ABKHG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TN10B 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_TN10B 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_TN10B INTO WA_TN10B.


*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 ORGFA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TN10B-ORGFA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TN10B-ORGFA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORGPF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TN10B-ORGPF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TN10B-ORGPF.
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_TN10B_STR, 
MANDT TYPE STRING,
ORGFA TYPE STRING,
ORGPF TYPE STRING,
RI_ENDDT TYPE STRING,
RI_BEGDT TYPE STRING,
PBSUM TYPE STRING,
PBKHG TYPE STRING,
PBHBFG TYPE STRING,
PBSON TYPE STRING,
ABSUM TYPE STRING,
ABKHG TYPE STRING,
ABHBFG TYPE STRING,
ABVER TYPE STRING,
ABSON TYPE STRING,
ABINT TYPE STRING,
ABBELEG TYPE STRING,
PBVIP TYPE STRING,
PBNEGA TYPE STRING,
PBRES TYPE STRING,
ABVIP TYPE STRING,
ABNEGA TYPE STRING,
ABRES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TN10B_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_TN10B_STR-MANDT sy-vline 
WA_TN10B_STR-ORGFA sy-vline 
WA_TN10B_STR-ORGPF sy-vline 
WA_TN10B_STR-RI_ENDDT sy-vline 
WA_TN10B_STR-RI_BEGDT sy-vline 
WA_TN10B_STR-PBSUM sy-vline 
WA_TN10B_STR-PBKHG sy-vline 
WA_TN10B_STR-PBHBFG sy-vline 
WA_TN10B_STR-PBSON sy-vline 
WA_TN10B_STR-ABSUM sy-vline 
WA_TN10B_STR-ABKHG sy-vline 
WA_TN10B_STR-ABHBFG sy-vline 
WA_TN10B_STR-ABVER sy-vline 
WA_TN10B_STR-ABSON sy-vline 
WA_TN10B_STR-ABINT sy-vline 
WA_TN10B_STR-ABBELEG sy-vline 
WA_TN10B_STR-PBVIP sy-vline 
WA_TN10B_STR-PBNEGA sy-vline 
WA_TN10B_STR-PBRES sy-vline 
WA_TN10B_STR-ABVIP sy-vline 
WA_TN10B_STR-ABNEGA sy-vline 
WA_TN10B_STR-ABRES sy-vline      INTO ld_text SEPARATED BY SPACE.

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