ABAP Select data from SAP table CKI_PAE_PP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CKI_PAE_PP
*  INTO TABLE @DATA(IT_CKI_PAE_PP2).
*--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_CKI_PAE_PP INDEX 1 INTO DATA(WA_CKI_PAE_PP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CKI_PAE_PP>-KALN1 = 1.
<CKI_PAE_PP>-MATNR = 1.
<CKI_PAE_PP>-BWKEY = 1.
<CKI_PAE_PP>-BWTAR = 1.
<CKI_PAE_PP>-SOBKZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CKI_PAE_PP-KZBWS, sy-vline,
  WA_CKI_PAE_PP-XOBEW, sy-vline,
  WA_CKI_PAE_PP-VBELN, sy-vline,
  WA_CKI_PAE_PP-POSNR, sy-vline,
  WA_CKI_PAE_PP-PSPNR, sy-vline,
  WA_CKI_PAE_PP-LIFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CKI_PAE_PP 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_CKI_PAE_PP 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_CKI_PAE_PP INTO WA_CKI_PAE_PP.


*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_CKI_PAE_PP-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKI_PAE_PP-MATNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_CKI_PAE_PP-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKI_PAE_PP-PSPNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field BDATJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CKI_PAE_PP-BDATJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKI_PAE_PP-BDATJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CKI_PAE_PP-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKI_PAE_PP-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MBGJA
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CKI_PAE_PP-MBGJA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKI_PAE_PP-MBGJA.
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_CKI_PAE_PP_STR, 
KALN1 TYPE STRING,
MATNR TYPE STRING,
BWKEY TYPE STRING,
BWTAR TYPE STRING,
SOBKZ TYPE STRING,
KZBWS TYPE STRING,
XOBEW TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
PSPNR TYPE STRING,
LIFNR TYPE STRING,
BWTTY TYPE STRING,
POPER TYPE STRING,
BDATJ TYPE STRING,
MAKTX TYPE STRING,
VPRSV TYPE STRING,
MLAST TYPE STRING,
MLMAA TYPE STRING,
PRSFIX TYPE STRING,
LBKUM TYPE STRING,
MEINS TYPE STRING,
VKSAL TYPE STRING,
PERTYP TYPE STRING,
MENGE TYPE STRING,
XERROR TYPE STRING,
MSGNO TYPE STRING,
ZEILE TYPE STRING,
RMBEWH TYPE STRING,
MBLFM TYPE STRING,
MBGJA TYPE STRING,
MBRUE TYPE STRING,
XBEWM TYPE STRING,
STATSEG TYPE STRING,
SUPKALNR TYPE STRING,
GROUP_POSTING TYPE STRING,
PRE_READ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CKI_PAE_PP_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_CKI_PAE_PP_STR-KALN1 sy-vline 
WA_CKI_PAE_PP_STR-MATNR sy-vline 
WA_CKI_PAE_PP_STR-BWKEY sy-vline 
WA_CKI_PAE_PP_STR-BWTAR sy-vline 
WA_CKI_PAE_PP_STR-SOBKZ sy-vline 
WA_CKI_PAE_PP_STR-KZBWS sy-vline 
WA_CKI_PAE_PP_STR-XOBEW sy-vline 
WA_CKI_PAE_PP_STR-VBELN sy-vline 
WA_CKI_PAE_PP_STR-POSNR sy-vline 
WA_CKI_PAE_PP_STR-PSPNR sy-vline 
WA_CKI_PAE_PP_STR-LIFNR sy-vline 
WA_CKI_PAE_PP_STR-BWTTY sy-vline 
WA_CKI_PAE_PP_STR-POPER sy-vline 
WA_CKI_PAE_PP_STR-BDATJ sy-vline 
WA_CKI_PAE_PP_STR-MAKTX sy-vline 
WA_CKI_PAE_PP_STR-VPRSV sy-vline 
WA_CKI_PAE_PP_STR-MLAST sy-vline 
WA_CKI_PAE_PP_STR-MLMAA sy-vline 
WA_CKI_PAE_PP_STR-PRSFIX sy-vline 
WA_CKI_PAE_PP_STR-LBKUM sy-vline 
WA_CKI_PAE_PP_STR-MEINS sy-vline 
WA_CKI_PAE_PP_STR-VKSAL sy-vline 
WA_CKI_PAE_PP_STR-PERTYP sy-vline 
WA_CKI_PAE_PP_STR-MENGE sy-vline 
WA_CKI_PAE_PP_STR-XERROR sy-vline 
WA_CKI_PAE_PP_STR-MSGNO sy-vline 
WA_CKI_PAE_PP_STR-ZEILE sy-vline 
WA_CKI_PAE_PP_STR-RMBEWH sy-vline 
WA_CKI_PAE_PP_STR-MBLFM sy-vline 
WA_CKI_PAE_PP_STR-MBGJA sy-vline 
WA_CKI_PAE_PP_STR-MBRUE sy-vline 
WA_CKI_PAE_PP_STR-XBEWM sy-vline 
WA_CKI_PAE_PP_STR-STATSEG sy-vline 
WA_CKI_PAE_PP_STR-SUPKALNR sy-vline 
WA_CKI_PAE_PP_STR-GROUP_POSTING sy-vline 
WA_CKI_PAE_PP_STR-PRE_READ sy-vline      INTO ld_text SEPARATED BY SPACE.

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