ABAP Select data from SAP table KKBCS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KKBCS
*  INTO TABLE @DATA(IT_KKBCS2).
*--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_KKBCS INDEX 1 INTO DATA(WA_KKBCS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KKBCS>-OBJNR = 1.
<KKBCS>-HERKZ = 1.
<KKBCS>-VALUTYP = 1.
<KKBCS>-VERSN = 1.
<KKBCS>-BELAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KKBCS-WRTTP, sy-vline,
  WA_KKBCS-ABKAT, sy-vline,
  WA_KKBCS-KSTAR, sy-vline,
  WA_KKBCS-ELEMT, sy-vline,
  WA_KKBCS-EGRUP, sy-vline,
  WA_KKBCS-PERIO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KKBCS 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_KKBCS 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_KKBCS INTO WA_KKBCS.


*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 VERSN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KKBCS-VERSN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKBCS-VERSN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit BELAR, internal->external for field BELAR
CALL FUNCTION 'CONVERSION_EXIT_BELAR_OUTPUT'
  EXPORTING
    input =                      WA_KKBCS-BELAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKBCS-BELAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ABKAT, internal->external for field ABKAT
CALL FUNCTION 'CONVERSION_EXIT_ABKAT_OUTPUT'
  EXPORTING
    input =                      WA_KKBCS-ABKAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKBCS-ABKAT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit PERI7, internal->external for field PERIO
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_KKBCS-PERIO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKBCS-PERIO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit BEWEG, internal->external for field BEWEG
CALL FUNCTION 'CONVERSION_EXIT_BEWEG_OUTPUT'
  EXPORTING
    input =                      WA_KKBCS-BEWEG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKBCS-BEWEG.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_KKBCS-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKBCS-MATNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AC152, internal->external for field WKG000
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KKBCS-WKG000
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKBCS-WKG000.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKF000
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KKBCS-WKF000
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKBCS-WKF000.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOG000
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KKBCS-WOG000
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKBCS-WOG000.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOF000
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KKBCS-WOF000
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKBCS-WOF000.
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_KKBCS_STR, 
OBJNR TYPE STRING,
HERKZ TYPE STRING,
VALUTYP TYPE STRING,
VERSN TYPE STRING,
BELAR TYPE STRING,
WRTTP TYPE STRING,
ABKAT TYPE STRING,
KSTAR TYPE STRING,
ELEMT TYPE STRING,
EGRUP TYPE STRING,
PERIO TYPE STRING,
BEWEG TYPE STRING,
HKTYP TYPE STRING,
PRZNR TYPE STRING,
AUFNR TYPE STRING,
HERKU TYPE STRING,
KOSTL TYPE STRING,
LSTAR TYPE STRING,
PKSLA TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
PMAWR TYPE STRING,
HKGRP TYPE STRING,
BEMOT TYPE STRING,
PARTN TYPE STRING,
MEINH TYPE STRING,
OWAER TYPE STRING,
KWAER TYPE STRING,
ELEHK TYPE STRING,
KOKRS TYPE STRING,
WKG000 TYPE STRING,
WKF000 TYPE STRING,
WOG000 TYPE STRING,
WOF000 TYPE STRING,
MEG000 TYPE STRING,
MEF000 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KKBCS_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_KKBCS_STR-OBJNR sy-vline 
WA_KKBCS_STR-HERKZ sy-vline 
WA_KKBCS_STR-VALUTYP sy-vline 
WA_KKBCS_STR-VERSN sy-vline 
WA_KKBCS_STR-BELAR sy-vline 
WA_KKBCS_STR-WRTTP sy-vline 
WA_KKBCS_STR-ABKAT sy-vline 
WA_KKBCS_STR-KSTAR sy-vline 
WA_KKBCS_STR-ELEMT sy-vline 
WA_KKBCS_STR-EGRUP sy-vline 
WA_KKBCS_STR-PERIO sy-vline 
WA_KKBCS_STR-BEWEG sy-vline 
WA_KKBCS_STR-HKTYP sy-vline 
WA_KKBCS_STR-PRZNR sy-vline 
WA_KKBCS_STR-AUFNR sy-vline 
WA_KKBCS_STR-HERKU sy-vline 
WA_KKBCS_STR-KOSTL sy-vline 
WA_KKBCS_STR-LSTAR sy-vline 
WA_KKBCS_STR-PKSLA sy-vline 
WA_KKBCS_STR-MATNR sy-vline 
WA_KKBCS_STR-WERKS sy-vline 
WA_KKBCS_STR-PMAWR sy-vline 
WA_KKBCS_STR-HKGRP sy-vline 
WA_KKBCS_STR-BEMOT sy-vline 
WA_KKBCS_STR-PARTN sy-vline 
WA_KKBCS_STR-MEINH sy-vline 
WA_KKBCS_STR-OWAER sy-vline 
WA_KKBCS_STR-KWAER sy-vline 
WA_KKBCS_STR-ELEHK sy-vline 
WA_KKBCS_STR-KOKRS sy-vline 
WA_KKBCS_STR-WKG000 sy-vline 
WA_KKBCS_STR-WKF000 sy-vline 
WA_KKBCS_STR-WOG000 sy-vline 
WA_KKBCS_STR-WOF000 sy-vline 
WA_KKBCS_STR-MEG000 sy-vline 
WA_KKBCS_STR-MEF000 sy-vline      INTO ld_text SEPARATED BY SPACE.

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