ABAP Select data from SAP table V_EWU_CKIP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_EWU_CKIP
*  INTO TABLE @DATA(IT_V_EWU_CKIP2).
*--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_V_EWU_CKIP INDEX 1 INTO DATA(WA_V_EWU_CKIP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_EWU_CKIP>-MANDT = 1.
<V_EWU_CKIP>-LEDNR = 1.
<V_EWU_CKIP>-BZOBJ = 1.
<V_EWU_CKIP>-KALNR = 1.
<V_EWU_CKIP>-KALKA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_EWU_CKIP-KADKY, sy-vline,
  WA_V_EWU_CKIP-TVERS, sy-vline,
  WA_V_EWU_CKIP-BWVAR, sy-vline,
  WA_V_EWU_CKIP-KKZMA, sy-vline,
  WA_V_EWU_CKIP-POSNR, sy-vline,
  WA_V_EWU_CKIP-PERBL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_EWU_CKIP 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_V_EWU_CKIP 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_V_EWU_CKIP INTO WA_V_EWU_CKIP.


*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 LEDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_EWU_CKIP-LEDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_EWU_CKIP-LEDNR.
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_V_EWU_CKIP_STR, 
MANDT TYPE STRING,
LEDNR TYPE STRING,
BZOBJ TYPE STRING,
KALNR TYPE STRING,
KALKA TYPE STRING,
KADKY TYPE STRING,
TVERS TYPE STRING,
BWVAR TYPE STRING,
KKZMA TYPE STRING,
POSNR TYPE STRING,
PERBL TYPE STRING,
PPG TYPE STRING,
PPG001 TYPE STRING,
PPG002 TYPE STRING,
PPG003 TYPE STRING,
PPG004 TYPE STRING,
PPG005 TYPE STRING,
PPG006 TYPE STRING,
PPG007 TYPE STRING,
PPG008 TYPE STRING,
PPG009 TYPE STRING,
PPG010 TYPE STRING,
PPG011 TYPE STRING,
PPG012 TYPE STRING,
PPG013 TYPE STRING,
PPG014 TYPE STRING,
PPG015 TYPE STRING,
PPG016 TYPE STRING,
PPO001 TYPE STRING,
PPO002 TYPE STRING,
PPO003 TYPE STRING,
PPO004 TYPE STRING,
PPO005 TYPE STRING,
PPO006 TYPE STRING,
PPO007 TYPE STRING,
PPO008 TYPE STRING,
PPO009 TYPE STRING,
PPO010 TYPE STRING,
PPO011 TYPE STRING,
PPO012 TYPE STRING,
PPO013 TYPE STRING,
PPO014 TYPE STRING,
PPO015 TYPE STRING,
PPO016 TYPE STRING,
PPT001 TYPE STRING,
PPT002 TYPE STRING,
PPT003 TYPE STRING,
PPT004 TYPE STRING,
PPT005 TYPE STRING,
PPT006 TYPE STRING,
PPT007 TYPE STRING,
PPT008 TYPE STRING,
PPT009 TYPE STRING,
PPT010 TYPE STRING,
PPT011 TYPE STRING,
PPT012 TYPE STRING,
PPT013 TYPE STRING,
PPT014 TYPE STRING,
PPT015 TYPE STRING,
PPT016 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_EWU_CKIP_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_V_EWU_CKIP_STR-MANDT sy-vline 
WA_V_EWU_CKIP_STR-LEDNR sy-vline 
WA_V_EWU_CKIP_STR-BZOBJ sy-vline 
WA_V_EWU_CKIP_STR-KALNR sy-vline 
WA_V_EWU_CKIP_STR-KALKA sy-vline 
WA_V_EWU_CKIP_STR-KADKY sy-vline 
WA_V_EWU_CKIP_STR-TVERS sy-vline 
WA_V_EWU_CKIP_STR-BWVAR sy-vline 
WA_V_EWU_CKIP_STR-KKZMA sy-vline 
WA_V_EWU_CKIP_STR-POSNR sy-vline 
WA_V_EWU_CKIP_STR-PERBL sy-vline 
WA_V_EWU_CKIP_STR-PPG sy-vline 
WA_V_EWU_CKIP_STR-PPG001 sy-vline 
WA_V_EWU_CKIP_STR-PPG002 sy-vline 
WA_V_EWU_CKIP_STR-PPG003 sy-vline 
WA_V_EWU_CKIP_STR-PPG004 sy-vline 
WA_V_EWU_CKIP_STR-PPG005 sy-vline 
WA_V_EWU_CKIP_STR-PPG006 sy-vline 
WA_V_EWU_CKIP_STR-PPG007 sy-vline 
WA_V_EWU_CKIP_STR-PPG008 sy-vline 
WA_V_EWU_CKIP_STR-PPG009 sy-vline 
WA_V_EWU_CKIP_STR-PPG010 sy-vline 
WA_V_EWU_CKIP_STR-PPG011 sy-vline 
WA_V_EWU_CKIP_STR-PPG012 sy-vline 
WA_V_EWU_CKIP_STR-PPG013 sy-vline 
WA_V_EWU_CKIP_STR-PPG014 sy-vline 
WA_V_EWU_CKIP_STR-PPG015 sy-vline 
WA_V_EWU_CKIP_STR-PPG016 sy-vline 
WA_V_EWU_CKIP_STR-PPO001 sy-vline 
WA_V_EWU_CKIP_STR-PPO002 sy-vline 
WA_V_EWU_CKIP_STR-PPO003 sy-vline 
WA_V_EWU_CKIP_STR-PPO004 sy-vline 
WA_V_EWU_CKIP_STR-PPO005 sy-vline 
WA_V_EWU_CKIP_STR-PPO006 sy-vline 
WA_V_EWU_CKIP_STR-PPO007 sy-vline 
WA_V_EWU_CKIP_STR-PPO008 sy-vline 
WA_V_EWU_CKIP_STR-PPO009 sy-vline 
WA_V_EWU_CKIP_STR-PPO010 sy-vline 
WA_V_EWU_CKIP_STR-PPO011 sy-vline 
WA_V_EWU_CKIP_STR-PPO012 sy-vline 
WA_V_EWU_CKIP_STR-PPO013 sy-vline 
WA_V_EWU_CKIP_STR-PPO014 sy-vline 
WA_V_EWU_CKIP_STR-PPO015 sy-vline 
WA_V_EWU_CKIP_STR-PPO016 sy-vline 
WA_V_EWU_CKIP_STR-PPT001 sy-vline 
WA_V_EWU_CKIP_STR-PPT002 sy-vline 
WA_V_EWU_CKIP_STR-PPT003 sy-vline 
WA_V_EWU_CKIP_STR-PPT004 sy-vline 
WA_V_EWU_CKIP_STR-PPT005 sy-vline 
WA_V_EWU_CKIP_STR-PPT006 sy-vline 
WA_V_EWU_CKIP_STR-PPT007 sy-vline 
WA_V_EWU_CKIP_STR-PPT008 sy-vline 
WA_V_EWU_CKIP_STR-PPT009 sy-vline 
WA_V_EWU_CKIP_STR-PPT010 sy-vline 
WA_V_EWU_CKIP_STR-PPT011 sy-vline 
WA_V_EWU_CKIP_STR-PPT012 sy-vline 
WA_V_EWU_CKIP_STR-PPT013 sy-vline 
WA_V_EWU_CKIP_STR-PPT014 sy-vline 
WA_V_EWU_CKIP_STR-PPT015 sy-vline 
WA_V_EWU_CKIP_STR-PPT016 sy-vline      INTO ld_text SEPARATED BY SPACE.

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