ABAP Select data from SAP table KKB_DIPRO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KKB_DIPRO
*  INTO TABLE @DATA(IT_KKB_DIPRO2).
*--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_KKB_DIPRO INDEX 1 INTO DATA(WA_KKB_DIPRO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KKB_DIPRO>-GSIGN = 1.
<KKB_DIPRO>-SINGLE_VAL = 1.
<KKB_DIPRO>-FROM_VALUE = 1.
<KKB_DIPRO>-TO_VALUE = 1.
<KKB_DIPRO>-KOSTAB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KKB_DIPRO-MENGAB, sy-vline,
  WA_KKB_DIPRO-PLANIST, sy-vline,
  WA_KKB_DIPRO-SOLLIST, sy-vline,
  WA_KKB_DIPRO-ABSOLUT, sy-vline,
  WA_KKB_DIPRO-PROZENTUAL, sy-vline,
  WA_KKB_DIPRO-ABWWERT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KKB_DIPRO 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_KKB_DIPRO 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_KKB_DIPRO INTO WA_KKB_DIPRO.


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

*Conversion exit GJAHR, internal->external for field BGJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_KKB_DIPRO-BGJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKB_DIPRO-BGJAHR.
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_KKB_DIPRO_STR, 
GSIGN TYPE STRING,
SINGLE_VAL TYPE STRING,
FROM_VALUE TYPE STRING,
TO_VALUE TYPE STRING,
KOSTAB TYPE STRING,
MENGAB TYPE STRING,
PLANIST TYPE STRING,
SOLLIST TYPE STRING,
ABSOLUT TYPE STRING,
PROZENTUAL TYPE STRING,
ABWWERT TYPE STRING,
ABWBEREICH TYPE STRING,
ANZEIGEN TYPE STRING,
AUSBLENDEN TYPE STRING,
ALLPERGJAR TYPE STRING,
EINZEITRAU TYPE STRING,
VGJAHR TYPE STRING,
VPERIO TYPE STRING,
BGJAHR TYPE STRING,
BPERIO TYPE STRING,
P_BESTA TYPE STRING,
P_KUPRI TYPE STRING,
STATUS_HEAD TYPE STRING,
STATUS_COHEAD TYPE STRING,
STATUS_COITEM TYPE STRING,
P_CLSC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KKB_DIPRO_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_KKB_DIPRO_STR-GSIGN sy-vline 
WA_KKB_DIPRO_STR-SINGLE_VAL sy-vline 
WA_KKB_DIPRO_STR-FROM_VALUE sy-vline 
WA_KKB_DIPRO_STR-TO_VALUE sy-vline 
WA_KKB_DIPRO_STR-KOSTAB sy-vline 
WA_KKB_DIPRO_STR-MENGAB sy-vline 
WA_KKB_DIPRO_STR-PLANIST sy-vline 
WA_KKB_DIPRO_STR-SOLLIST sy-vline 
WA_KKB_DIPRO_STR-ABSOLUT sy-vline 
WA_KKB_DIPRO_STR-PROZENTUAL sy-vline 
WA_KKB_DIPRO_STR-ABWWERT sy-vline 
WA_KKB_DIPRO_STR-ABWBEREICH sy-vline 
WA_KKB_DIPRO_STR-ANZEIGEN sy-vline 
WA_KKB_DIPRO_STR-AUSBLENDEN sy-vline 
WA_KKB_DIPRO_STR-ALLPERGJAR sy-vline 
WA_KKB_DIPRO_STR-EINZEITRAU sy-vline 
WA_KKB_DIPRO_STR-VGJAHR sy-vline 
WA_KKB_DIPRO_STR-VPERIO sy-vline 
WA_KKB_DIPRO_STR-BGJAHR sy-vline 
WA_KKB_DIPRO_STR-BPERIO sy-vline 
WA_KKB_DIPRO_STR-P_BESTA sy-vline 
WA_KKB_DIPRO_STR-P_KUPRI sy-vline 
WA_KKB_DIPRO_STR-STATUS_HEAD sy-vline 
WA_KKB_DIPRO_STR-STATUS_COHEAD sy-vline 
WA_KKB_DIPRO_STR-STATUS_COITEM sy-vline 
WA_KKB_DIPRO_STR-P_CLSC sy-vline      INTO ld_text SEPARATED BY SPACE.

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