ABAP Select data from SAP table TKEBPSF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TKEBPSF
*  INTO TABLE @DATA(IT_TKEBPSF2).
*--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_TKEBPSF INDEX 1 INTO DATA(WA_TKEBPSF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TKEBPSF>-APPLCLASS = 1.
<TKEBPSF>-SUBCLASS = 1.
<TKEBPSF>-FUNC = 1.
<TKEBPSF>-PROG = 1.
<TKEBPSF>-DNUM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TKEBPSF-TNAM, sy-vline,
  WA_TKEBPSF-FNAM, sy-vline,
  WA_TKEBPSF-ACTIVE, sy-vline,
  WA_TKEBPSF-REQUIRED, sy-vline,
  WA_TKEBPSF-FUNCF4, sy-vline,
  WA_TKEBPSF-FUNCCH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TKEBPSF 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_TKEBPSF 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_TKEBPSF INTO WA_TKEBPSF.


*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_TKEBPSF_STR, 
APPLCLASS TYPE STRING,
SUBCLASS TYPE STRING,
FUNC TYPE STRING,
PROG TYPE STRING,
DNUM TYPE STRING,
TNAM TYPE STRING,
FNAM TYPE STRING,
ACTIVE TYPE STRING,
REQUIRED TYPE STRING,
FUNCF4 TYPE STRING,
FUNCCH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TKEBPSF_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_TKEBPSF_STR-APPLCLASS sy-vline 
WA_TKEBPSF_STR-SUBCLASS sy-vline 
WA_TKEBPSF_STR-FUNC sy-vline 
WA_TKEBPSF_STR-PROG sy-vline 
WA_TKEBPSF_STR-DNUM sy-vline 
WA_TKEBPSF_STR-TNAM sy-vline 
WA_TKEBPSF_STR-FNAM sy-vline 
WA_TKEBPSF_STR-ACTIVE sy-vline 
WA_TKEBPSF_STR-REQUIRED sy-vline 
WA_TKEBPSF_STR-FUNCF4 sy-vline 
WA_TKEBPSF_STR-FUNCCH sy-vline      INTO ld_text SEPARATED BY SPACE.

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