ABAP Select data from SAP table CKI_ABR_ML into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CKI_ABR_ML 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_ABR_ML. 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_ABR_ML 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_ABR_ML TYPE STANDARD TABLE OF CKI_ABR_ML,
      WA_CKI_ABR_ML TYPE CKI_ABR_ML,
      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_ABR_ML> TYPE CKI_ABR_ML.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CKI_ABR_ML
*  INTO TABLE @DATA(IT_CKI_ABR_ML2).
*--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_ABR_ML INDEX 1 INTO DATA(WA_CKI_ABR_ML2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CKI_ABR_ML>-WEKUM = 1.
<CKI_ABR_ML>-WEWRT_1 = 1.
<CKI_ABR_ML>-WEWRT_2 = 1.
<CKI_ABR_ML>-WEWRT_3 = 1.
<CKI_ABR_ML>-REKUM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CKI_ABR_ML-REWRT_1, sy-vline,
  WA_CKI_ABR_ML-REWRT_2, sy-vline,
  WA_CKI_ABR_ML-REWRT_3, sy-vline,
  WA_CKI_ABR_ML-LVREKUM, sy-vline,
  WA_CKI_ABR_ML-LVREW_1, sy-vline,
  WA_CKI_ABR_ML-LVREW_2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CKI_ABR_ML 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_ABR_ML 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_ABR_ML INTO WA_CKI_ABR_ML.


*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_CKI_ABR_ML_STR, 
WEKUM TYPE STRING,
WEWRT_1 TYPE STRING,
WEWRT_2 TYPE STRING,
WEWRT_3 TYPE STRING,
REKUM TYPE STRING,
REWRT_1 TYPE STRING,
REWRT_2 TYPE STRING,
REWRT_3 TYPE STRING,
LVREKUM TYPE STRING,
LVREW_1 TYPE STRING,
LVREW_2 TYPE STRING,
LVREW_3 TYPE STRING,
ZUKUM TYPE STRING,
ZUABW_1 TYPE STRING,
ZUABW_2 TYPE STRING,
ZUABW_3 TYPE STRING,
LVABW_1 TYPE STRING,
LVABW_2 TYPE STRING,
LVABW_3 TYPE STRING,
LVWEKUM TYPE STRING,
LVWEW_1 TYPE STRING,
LVWEW_2 TYPE STRING,
LVWEW_3 TYPE STRING,
ZUOME_1 TYPE STRING,
ZUOME_2 TYPE STRING,
ZUOME_3 TYPE STRING,
ZUUMB_1 TYPE STRING,
ZUUMB_2 TYPE STRING,
ZUUMB_3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CKI_ABR_ML_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_ABR_ML_STR-WEKUM sy-vline 
WA_CKI_ABR_ML_STR-WEWRT_1 sy-vline 
WA_CKI_ABR_ML_STR-WEWRT_2 sy-vline 
WA_CKI_ABR_ML_STR-WEWRT_3 sy-vline 
WA_CKI_ABR_ML_STR-REKUM sy-vline 
WA_CKI_ABR_ML_STR-REWRT_1 sy-vline 
WA_CKI_ABR_ML_STR-REWRT_2 sy-vline 
WA_CKI_ABR_ML_STR-REWRT_3 sy-vline 
WA_CKI_ABR_ML_STR-LVREKUM sy-vline 
WA_CKI_ABR_ML_STR-LVREW_1 sy-vline 
WA_CKI_ABR_ML_STR-LVREW_2 sy-vline 
WA_CKI_ABR_ML_STR-LVREW_3 sy-vline 
WA_CKI_ABR_ML_STR-ZUKUM sy-vline 
WA_CKI_ABR_ML_STR-ZUABW_1 sy-vline 
WA_CKI_ABR_ML_STR-ZUABW_2 sy-vline 
WA_CKI_ABR_ML_STR-ZUABW_3 sy-vline 
WA_CKI_ABR_ML_STR-LVABW_1 sy-vline 
WA_CKI_ABR_ML_STR-LVABW_2 sy-vline 
WA_CKI_ABR_ML_STR-LVABW_3 sy-vline 
WA_CKI_ABR_ML_STR-LVWEKUM sy-vline 
WA_CKI_ABR_ML_STR-LVWEW_1 sy-vline 
WA_CKI_ABR_ML_STR-LVWEW_2 sy-vline 
WA_CKI_ABR_ML_STR-LVWEW_3 sy-vline 
WA_CKI_ABR_ML_STR-ZUOME_1 sy-vline 
WA_CKI_ABR_ML_STR-ZUOME_2 sy-vline 
WA_CKI_ABR_ML_STR-ZUOME_3 sy-vline 
WA_CKI_ABR_ML_STR-ZUUMB_1 sy-vline 
WA_CKI_ABR_ML_STR-ZUUMB_2 sy-vline 
WA_CKI_ABR_ML_STR-ZUUMB_3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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