ABAP Select data from SAP table CKPHS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CKPHS
*  INTO TABLE @DATA(IT_CKPHS2).
*--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_CKPHS INDEX 1 INTO DATA(WA_CKPHS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CKPHS>-MANDT = 1.
<CKPHS>-KTRAT = 1.
<CKPHS>-KTRTP = 1.
<CKPHS>-HIEKZ = 1.
<CKPHS>-VTLKZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CKPHS-AHZKZ, sy-vline,
  WA_CKPHS-ABWKZ, sy-vline,
  WA_CKPHS-PLAKZ, sy-vline,
  WA_CKPHS-WIPKZ, sy-vline,
  WA_CKPHS-KLAKZ, sy-vline,
  WA_CKPHS-NUMKR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CKPHS 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_CKPHS 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_CKPHS INTO WA_CKPHS.


*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_CKPHS_STR, 
MANDT TYPE STRING,
KTRAT TYPE STRING,
KTRTP TYPE STRING,
HIEKZ TYPE STRING,
VTLKZ TYPE STRING,
AHZKZ TYPE STRING,
ABWKZ TYPE STRING,
PLAKZ TYPE STRING,
WIPKZ TYPE STRING,
KLAKZ TYPE STRING,
NUMKR TYPE STRING,
KTRPR TYPE STRING,
STSMA TYPE STRING,
MATKZ TYPE STRING,
FVEKZ TYPE STRING,
PGZKZ TYPE STRING,
PGRKZ TYPE STRING,
APLKZ TYPE STRING,
AUTKZ TYPE STRING,
SAUKZ TYPE STRING,
PSPKZ TYPE STRING,
SURKZ TYPE STRING,
KURST TYPE STRING,
SCOPE TYPE STRING,
KTSKZ TYPE STRING,
VDSKZ TYPE STRING,
KTRZB TYPE STRING,
KTRFT TYPE STRING,
KTRKA TYPE STRING,
PLINT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CKPHS_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_CKPHS_STR-MANDT sy-vline 
WA_CKPHS_STR-KTRAT sy-vline 
WA_CKPHS_STR-KTRTP sy-vline 
WA_CKPHS_STR-HIEKZ sy-vline 
WA_CKPHS_STR-VTLKZ sy-vline 
WA_CKPHS_STR-AHZKZ sy-vline 
WA_CKPHS_STR-ABWKZ sy-vline 
WA_CKPHS_STR-PLAKZ sy-vline 
WA_CKPHS_STR-WIPKZ sy-vline 
WA_CKPHS_STR-KLAKZ sy-vline 
WA_CKPHS_STR-NUMKR sy-vline 
WA_CKPHS_STR-KTRPR sy-vline 
WA_CKPHS_STR-STSMA sy-vline 
WA_CKPHS_STR-MATKZ sy-vline 
WA_CKPHS_STR-FVEKZ sy-vline 
WA_CKPHS_STR-PGZKZ sy-vline 
WA_CKPHS_STR-PGRKZ sy-vline 
WA_CKPHS_STR-APLKZ sy-vline 
WA_CKPHS_STR-AUTKZ sy-vline 
WA_CKPHS_STR-SAUKZ sy-vline 
WA_CKPHS_STR-PSPKZ sy-vline 
WA_CKPHS_STR-SURKZ sy-vline 
WA_CKPHS_STR-KURST sy-vline 
WA_CKPHS_STR-SCOPE sy-vline 
WA_CKPHS_STR-KTSKZ sy-vline 
WA_CKPHS_STR-VDSKZ sy-vline 
WA_CKPHS_STR-KTRZB sy-vline 
WA_CKPHS_STR-KTRFT sy-vline 
WA_CKPHS_STR-KTRKA sy-vline 
WA_CKPHS_STR-PLINT sy-vline      INTO ld_text SEPARATED BY SPACE.

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