ABAP Select data from SAP table IBKKPOHD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IBKKPOHD
*  INTO TABLE @DATA(IT_IBKKPOHD2).
*--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_IBKKPOHD INDEX 1 INTO DATA(WA_IBKKPOHD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IBKKPOHD>-MANDT = 1.
<IBKKPOHD>-BKKRS = 1.
<IBKKPOHD>-PAORN = 1.
<IBKKPOHD>-DATE_CR = 1.
<IBKKPOHD>-DATE_POST = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IBKKPOHD-XPOSTOLD, sy-vline,
  WA_IBKKPOHD-MEDIUM, sy-vline,
  WA_IBKKPOHD-PAYMETHOD, sy-vline,
  WA_IBKKPOHD-PROCESS, sy-vline,
  WA_IBKKPOHD-POSTATUS, sy-vline,
  WA_IBKKPOHD-RCV_EXTERN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IBKKPOHD 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_IBKKPOHD 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_IBKKPOHD INTO WA_IBKKPOHD.


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

*Conversion exit ALPHA, internal->external for field AWSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IBKKPOHD-AWSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKKPOHD-AWSYS.
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_IBKKPOHD_STR, 
MANDT TYPE STRING,
BKKRS TYPE STRING,
PAORN TYPE STRING,
DATE_CR TYPE STRING,
DATE_POST TYPE STRING,
XPOSTOLD TYPE STRING,
MEDIUM TYPE STRING,
PAYMETHOD TYPE STRING,
PROCESS TYPE STRING,
POSTATUS TYPE STRING,
RCV_EXTERN TYPE STRING,
RCV_EXTERN_ERROR TYPE STRING,
XPRI_PPROC TYPE STRING,
REMARK TYPE STRING,
S_TRNSTYPE TYPE STRING,
RETURNK TYPE STRING,
REFNO_CR TYPE STRING,
REFNO_PAYM TYPE STRING,
REFNO_PN TYPE STRING,
REF_IT_BK TYPE STRING,
REF_IT_NO TYPE STRING,
REF_IT_PS TYPE STRING,
REF_SONO TYPE STRING,
XREVERSE TYPE STRING,
XDOCUMENT TYPE STRING,
ITEMCNT TYPE STRING,
AWSYS TYPE STRING,
AWTYP TYPE STRING,
AWKEY TYPE STRING,
CRUSR TYPE STRING,
CRDAT TYPE STRING,
CRTIM TYPE STRING,
CHUSR TYPE STRING,
CHDAT TYPE STRING,
CHTIM TYPE STRING,
RLUSR TYPE STRING,
RLDAT TYPE STRING,
RLTIM TYPE STRING,
DATE_DUE TYPE STRING,
SND_EXTERN TYPE STRING,
SND_EXTERN_ERROR TYPE STRING,
XSDD TYPE STRING,
ITEMCNT8 TYPE STRING,
XSDD_SPLFD TYPE STRING,
XPPREL TYPE STRING,
XMEMO_ITEM TYPE STRING,
DATE_SYPO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IBKKPOHD_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_IBKKPOHD_STR-MANDT sy-vline 
WA_IBKKPOHD_STR-BKKRS sy-vline 
WA_IBKKPOHD_STR-PAORN sy-vline 
WA_IBKKPOHD_STR-DATE_CR sy-vline 
WA_IBKKPOHD_STR-DATE_POST sy-vline 
WA_IBKKPOHD_STR-XPOSTOLD sy-vline 
WA_IBKKPOHD_STR-MEDIUM sy-vline 
WA_IBKKPOHD_STR-PAYMETHOD sy-vline 
WA_IBKKPOHD_STR-PROCESS sy-vline 
WA_IBKKPOHD_STR-POSTATUS sy-vline 
WA_IBKKPOHD_STR-RCV_EXTERN sy-vline 
WA_IBKKPOHD_STR-RCV_EXTERN_ERROR sy-vline 
WA_IBKKPOHD_STR-XPRI_PPROC sy-vline 
WA_IBKKPOHD_STR-REMARK sy-vline 
WA_IBKKPOHD_STR-S_TRNSTYPE sy-vline 
WA_IBKKPOHD_STR-RETURNK sy-vline 
WA_IBKKPOHD_STR-REFNO_CR sy-vline 
WA_IBKKPOHD_STR-REFNO_PAYM sy-vline 
WA_IBKKPOHD_STR-REFNO_PN sy-vline 
WA_IBKKPOHD_STR-REF_IT_BK sy-vline 
WA_IBKKPOHD_STR-REF_IT_NO sy-vline 
WA_IBKKPOHD_STR-REF_IT_PS sy-vline 
WA_IBKKPOHD_STR-REF_SONO sy-vline 
WA_IBKKPOHD_STR-XREVERSE sy-vline 
WA_IBKKPOHD_STR-XDOCUMENT sy-vline 
WA_IBKKPOHD_STR-ITEMCNT sy-vline 
WA_IBKKPOHD_STR-AWSYS sy-vline 
WA_IBKKPOHD_STR-AWTYP sy-vline 
WA_IBKKPOHD_STR-AWKEY sy-vline 
WA_IBKKPOHD_STR-CRUSR sy-vline 
WA_IBKKPOHD_STR-CRDAT sy-vline 
WA_IBKKPOHD_STR-CRTIM sy-vline 
WA_IBKKPOHD_STR-CHUSR sy-vline 
WA_IBKKPOHD_STR-CHDAT sy-vline 
WA_IBKKPOHD_STR-CHTIM sy-vline 
WA_IBKKPOHD_STR-RLUSR sy-vline 
WA_IBKKPOHD_STR-RLDAT sy-vline 
WA_IBKKPOHD_STR-RLTIM sy-vline 
WA_IBKKPOHD_STR-DATE_DUE sy-vline 
WA_IBKKPOHD_STR-SND_EXTERN sy-vline 
WA_IBKKPOHD_STR-SND_EXTERN_ERROR sy-vline 
WA_IBKKPOHD_STR-XSDD sy-vline 
WA_IBKKPOHD_STR-ITEMCNT8 sy-vline 
WA_IBKKPOHD_STR-XSDD_SPLFD sy-vline 
WA_IBKKPOHD_STR-XPPREL sy-vline 
WA_IBKKPOHD_STR-XMEMO_ITEM sy-vline 
WA_IBKKPOHD_STR-DATE_SYPO sy-vline      INTO ld_text SEPARATED BY SPACE.

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