ABAP Select data from SAP table KKP_CE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KKP_CE
*  INTO TABLE @DATA(IT_KKP_CE2).
*--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_KKP_CE INDEX 1 INTO DATA(WA_KKP_CE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KKP_CE>-MANDT = 1.
<KKP_CE>-KSTRG = 1.
<KKP_CE>-DATBI = 1.
<KKP_CE>-POSNR = 1.
<KKP_CE>-WERKS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KKP_CE-MATNR, sy-vline,
  WA_KKP_CE-VERSN, sy-vline,
  WA_KKP_CE-PROCNR, sy-vline,
  WA_KKP_CE-PLNNR, sy-vline,
  WA_KKP_CE-PLNAL, sy-vline,
  WA_KKP_CE-ARBPL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KKP_CE 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_KKP_CE 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_KKP_CE INTO WA_KKP_CE.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_KKP_CE-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKP_CE-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_KKP_CE-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKP_CE-PSPNR.
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_KKP_CE_STR, 
MANDT TYPE STRING,
KSTRG TYPE STRING,
DATBI TYPE STRING,
POSNR TYPE STRING,
WERKS TYPE STRING,
MATNR TYPE STRING,
VERSN TYPE STRING,
PROCNR TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
ARBPL TYPE STRING,
AUFNR TYPE STRING,
SAUFN TYPE STRING,
PSPNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KKP_CE_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_KKP_CE_STR-MANDT sy-vline 
WA_KKP_CE_STR-KSTRG sy-vline 
WA_KKP_CE_STR-DATBI sy-vline 
WA_KKP_CE_STR-POSNR sy-vline 
WA_KKP_CE_STR-WERKS sy-vline 
WA_KKP_CE_STR-MATNR sy-vline 
WA_KKP_CE_STR-VERSN sy-vline 
WA_KKP_CE_STR-PROCNR sy-vline 
WA_KKP_CE_STR-PLNNR sy-vline 
WA_KKP_CE_STR-PLNAL sy-vline 
WA_KKP_CE_STR-ARBPL sy-vline 
WA_KKP_CE_STR-AUFNR sy-vline 
WA_KKP_CE_STR-SAUFN sy-vline 
WA_KKP_CE_STR-PSPNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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