ABAP Select data from SAP table DIKBED into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DIKBED 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 DIKBED. 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 DIKBED 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_DIKBED TYPE STANDARD TABLE OF DIKBED,
      WA_DIKBED TYPE DIKBED,
      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: <DIKBED> TYPE DIKBED.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DIKBED
*  INTO TABLE @DATA(IT_DIKBED2).
*--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_DIKBED INDEX 1 INTO DATA(WA_DIKBED2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DIKBED>-MANDT = 1.
<DIKBED>-BEDID = 1.
<DIKBED>-BEDZL = 1.
<DIKBED>-CANUM = 1.
<DIKBED>-ARBID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DIKBED-TYPKZ, sy-vline,
  WA_DIKBED-OBJKZ, sy-vline,
  WA_DIKBED-KAPID, sy-vline,
  WA_DIKBED-BEDKZ, sy-vline,
  WA_DIKBED-KRUESOLL, sy-vline,
  WA_DIKBED-KRUEREST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DIKBED 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_DIKBED 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_DIKBED INTO WA_DIKBED.


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

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

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

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

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

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_DIKBED-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DIKBED-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DIKBED-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DIKBED-MEINH.
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_DIKBED_STR, 
MANDT TYPE STRING,
BEDID TYPE STRING,
BEDZL TYPE STRING,
CANUM TYPE STRING,
ARBID TYPE STRING,
TYPKZ TYPE STRING,
OBJKZ TYPE STRING,
KAPID TYPE STRING,
BEDKZ TYPE STRING,
KRUESOLL TYPE STRING,
KRUEREST TYPE STRING,
KBEASOLL TYPE STRING,
KBEAREST TYPE STRING,
KABRSOLL TYPE STRING,
KABRREST TYPE STRING,
KEINH TYPE STRING,
FSTAD TYPE STRING,
FSTAU TYPE STRING,
FENDD TYPE STRING,
FENDU TYPE STRING,
SSTAD TYPE STRING,
SSTAU TYPE STRING,
SENDD TYPE STRING,
SENDU TYPE STRING,
ISTAD TYPE STRING,
ISTAU TYPE STRING,
IENDD TYPE STRING,
IENDU TYPE STRING,
PENDD TYPE STRING,
PENDU TYPE STRING,
ISPLI TYPE STRING,
KPVER TYPE STRING,
OBSTA TYPE STRING,
AUFPL TYPE STRING,
APLZL TYPE STRING,
PLNUM TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
ZAEHL TYPE STRING,
PLNFL TYPE STRING,
ZAEHF TYPE STRING,
PLNKN TYPE STRING,
ZAEHP TYPE STRING,
SPLKN TYPE STRING,
SZAEHL TYPE STRING,
SAFNR TYPE STRING,
VORNR TYPE STRING,
OTYPE TYPE STRING,
PERNR TYPE STRING,
CANUMF TYPE STRING,
SPLIT TYPE STRING,
KBSTA TYPE STRING,
FSSBD TYPE STRING,
FSSBZ TYPE STRING,
FSSAD TYPE STRING,
FSSAZ TYPE STRING,
SSSBD TYPE STRING,
SSSBZ TYPE STRING,
SSSAD TYPE STRING,
SSSAZ TYPE STRING,
MGVRG TYPE STRING,
MEINH TYPE STRING,
RSTUF TYPE STRING,
PLSCN TYPE STRING,
BSTKZ TYPE STRING,
BEDZLF TYPE STRING,
PHASE_KZ TYPE STRING,
MAXBD_KZ TYPE STRING,
ANZMA TYPE STRING,
GEWRK TYPE STRING,
NAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DIKBED_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_DIKBED_STR-MANDT sy-vline 
WA_DIKBED_STR-BEDID sy-vline 
WA_DIKBED_STR-BEDZL sy-vline 
WA_DIKBED_STR-CANUM sy-vline 
WA_DIKBED_STR-ARBID sy-vline 
WA_DIKBED_STR-TYPKZ sy-vline 
WA_DIKBED_STR-OBJKZ sy-vline 
WA_DIKBED_STR-KAPID sy-vline 
WA_DIKBED_STR-BEDKZ sy-vline 
WA_DIKBED_STR-KRUESOLL sy-vline 
WA_DIKBED_STR-KRUEREST sy-vline 
WA_DIKBED_STR-KBEASOLL sy-vline 
WA_DIKBED_STR-KBEAREST sy-vline 
WA_DIKBED_STR-KABRSOLL sy-vline 
WA_DIKBED_STR-KABRREST sy-vline 
WA_DIKBED_STR-KEINH sy-vline 
WA_DIKBED_STR-FSTAD sy-vline 
WA_DIKBED_STR-FSTAU sy-vline 
WA_DIKBED_STR-FENDD sy-vline 
WA_DIKBED_STR-FENDU sy-vline 
WA_DIKBED_STR-SSTAD sy-vline 
WA_DIKBED_STR-SSTAU sy-vline 
WA_DIKBED_STR-SENDD sy-vline 
WA_DIKBED_STR-SENDU sy-vline 
WA_DIKBED_STR-ISTAD sy-vline 
WA_DIKBED_STR-ISTAU sy-vline 
WA_DIKBED_STR-IENDD sy-vline 
WA_DIKBED_STR-IENDU sy-vline 
WA_DIKBED_STR-PENDD sy-vline 
WA_DIKBED_STR-PENDU sy-vline 
WA_DIKBED_STR-ISPLI sy-vline 
WA_DIKBED_STR-KPVER sy-vline 
WA_DIKBED_STR-OBSTA sy-vline 
WA_DIKBED_STR-AUFPL sy-vline 
WA_DIKBED_STR-APLZL sy-vline 
WA_DIKBED_STR-PLNUM sy-vline 
WA_DIKBED_STR-PLNTY sy-vline 
WA_DIKBED_STR-PLNNR sy-vline 
WA_DIKBED_STR-PLNAL sy-vline 
WA_DIKBED_STR-ZAEHL sy-vline 
WA_DIKBED_STR-PLNFL sy-vline 
WA_DIKBED_STR-ZAEHF sy-vline 
WA_DIKBED_STR-PLNKN sy-vline 
WA_DIKBED_STR-ZAEHP sy-vline 
WA_DIKBED_STR-SPLKN sy-vline 
WA_DIKBED_STR-SZAEHL sy-vline 
WA_DIKBED_STR-SAFNR sy-vline 
WA_DIKBED_STR-VORNR sy-vline 
WA_DIKBED_STR-OTYPE sy-vline 
WA_DIKBED_STR-PERNR sy-vline 
WA_DIKBED_STR-CANUMF sy-vline 
WA_DIKBED_STR-SPLIT sy-vline 
WA_DIKBED_STR-KBSTA sy-vline 
WA_DIKBED_STR-FSSBD sy-vline 
WA_DIKBED_STR-FSSBZ sy-vline 
WA_DIKBED_STR-FSSAD sy-vline 
WA_DIKBED_STR-FSSAZ sy-vline 
WA_DIKBED_STR-SSSBD sy-vline 
WA_DIKBED_STR-SSSBZ sy-vline 
WA_DIKBED_STR-SSSAD sy-vline 
WA_DIKBED_STR-SSSAZ sy-vline 
WA_DIKBED_STR-MGVRG sy-vline 
WA_DIKBED_STR-MEINH sy-vline 
WA_DIKBED_STR-RSTUF sy-vline 
WA_DIKBED_STR-PLSCN sy-vline 
WA_DIKBED_STR-BSTKZ sy-vline 
WA_DIKBED_STR-BEDZLF sy-vline 
WA_DIKBED_STR-PHASE_KZ sy-vline 
WA_DIKBED_STR-MAXBD_KZ sy-vline 
WA_DIKBED_STR-ANZMA sy-vline 
WA_DIKBED_STR-GEWRK sy-vline 
WA_DIKBED_STR-NAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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