ABAP Select data from SAP table PDBKBESUM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PDBKBESUM
*  INTO TABLE @DATA(IT_PDBKBESUM2).
*--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_PDBKBESUM INDEX 1 INTO DATA(WA_PDBKBESUM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PDBKBESUM>-MANDT = 1.
<PDBKBESUM>-BNRSK = 1.
<PDBKBESUM>-INPER = 1.
<PDBKBESUM>-FPPER = 1.
<PDBKBESUM>-SEQNO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PDBKBESUM-KENID, sy-vline,
  WA_PDBKBESUM-ZVKAS, sy-vline,
  WA_PDBKBESUM-STATS, sy-vline,
  WA_PDBKBESUM-BESCH, sy-vline,
  WA_PDBKBESUM-WERKS, sy-vline,
  WA_PDBKBESUM-BTRTL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PDBKBESUM 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_PDBKBESUM 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_PDBKBESUM INTO WA_PDBKBESUM.


*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_PDBKBESUM_STR, 
MANDT TYPE STRING,
BNRSK TYPE STRING,
INPER TYPE STRING,
FPPER TYPE STRING,
SEQNO TYPE STRING,
KENID TYPE STRING,
ZVKAS TYPE STRING,
STATS TYPE STRING,
BESCH TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
RZNSK TYPE STRING,
RZNAG TYPE STRING,
NUS01 TYPE STRING,
NUS02 TYPE STRING,
RZDAT TYPE STRING,
VERNR TYPE STRING,
FNAME TYPE STRING,
ZVKAN TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
ABRMO TYPE STRING,
ABRJA TYPE STRING,
WAERS TYPE STRING,
BLSUM TYPE STRING,
ANZGE TYPE STRING,
BEIGE TYPE STRING,
ANZAN TYPE STRING,
BEIAN TYPE STRING,
ANZTA TYPE STRING,
BEIAT TYPE STRING,
BLWBU TYPE STRING,
ANZGW TYPE STRING,
UMLWB TYPE STRING,
LFDBE TYPE STRING,
STRME TYPE STRING,
STREG TYPE STRING,
REPRT TYPE STRING,
UNAME TYPE STRING,
GDATE TYPE STRING,
GTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PDBKBESUM_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_PDBKBESUM_STR-MANDT sy-vline 
WA_PDBKBESUM_STR-BNRSK sy-vline 
WA_PDBKBESUM_STR-INPER sy-vline 
WA_PDBKBESUM_STR-FPPER sy-vline 
WA_PDBKBESUM_STR-SEQNO sy-vline 
WA_PDBKBESUM_STR-KENID sy-vline 
WA_PDBKBESUM_STR-ZVKAS sy-vline 
WA_PDBKBESUM_STR-STATS sy-vline 
WA_PDBKBESUM_STR-BESCH sy-vline 
WA_PDBKBESUM_STR-WERKS sy-vline 
WA_PDBKBESUM_STR-BTRTL sy-vline 
WA_PDBKBESUM_STR-RZNSK sy-vline 
WA_PDBKBESUM_STR-RZNAG sy-vline 
WA_PDBKBESUM_STR-NUS01 sy-vline 
WA_PDBKBESUM_STR-NUS02 sy-vline 
WA_PDBKBESUM_STR-RZDAT sy-vline 
WA_PDBKBESUM_STR-VERNR sy-vline 
WA_PDBKBESUM_STR-FNAME sy-vline 
WA_PDBKBESUM_STR-ZVKAN sy-vline 
WA_PDBKBESUM_STR-BEGDA sy-vline 
WA_PDBKBESUM_STR-ENDDA sy-vline 
WA_PDBKBESUM_STR-ABRMO sy-vline 
WA_PDBKBESUM_STR-ABRJA sy-vline 
WA_PDBKBESUM_STR-WAERS sy-vline 
WA_PDBKBESUM_STR-BLSUM sy-vline 
WA_PDBKBESUM_STR-ANZGE sy-vline 
WA_PDBKBESUM_STR-BEIGE sy-vline 
WA_PDBKBESUM_STR-ANZAN sy-vline 
WA_PDBKBESUM_STR-BEIAN sy-vline 
WA_PDBKBESUM_STR-ANZTA sy-vline 
WA_PDBKBESUM_STR-BEIAT sy-vline 
WA_PDBKBESUM_STR-BLWBU sy-vline 
WA_PDBKBESUM_STR-ANZGW sy-vline 
WA_PDBKBESUM_STR-UMLWB sy-vline 
WA_PDBKBESUM_STR-LFDBE sy-vline 
WA_PDBKBESUM_STR-STRME sy-vline 
WA_PDBKBESUM_STR-STREG sy-vline 
WA_PDBKBESUM_STR-REPRT sy-vline 
WA_PDBKBESUM_STR-UNAME sy-vline 
WA_PDBKBESUM_STR-GDATE sy-vline 
WA_PDBKBESUM_STR-GTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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