ABAP Select data from SAP table KKRDYN00 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP KKRDYN00 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 KKRDYN00. 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 KKRDYN00 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_KKRDYN00 TYPE STANDARD TABLE OF KKRDYN00,
      WA_KKRDYN00 TYPE KKRDYN00,
      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: <KKRDYN00> TYPE KKRDYN00.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_KKRDYN00.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM KKRDYN00
  INTO TABLE IT_KKRDYN00.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KKRDYN00
*  INTO TABLE @DATA(IT_KKRDYN002).
*--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_KKRDYN00 INDEX 1 INTO DATA(WA_KKRDYN002).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KKRDYN00 ASSIGNING <KKRDYN00>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KKRDYN00>-HIEART = 1.
<KKRDYN00>-HIERID = 1.
<KKRDYN00>-KOKRS = 1.
<KKRDYN00>-VONDAT = 1.
<KKRDYN00>-BISDAT = 1.

ENDLOOP.

LOOP AT IT_KKRDYN00 INTO WA_KKRDYN00.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KKRDYN00-VONPER, sy-vline,
  WA_KKRDYN00-BISPER, sy-vline,
  WA_KKRDYN00-VONJHR, sy-vline,
  WA_KKRDYN00-BISJHR, sy-vline,
  WA_KKRDYN00-RESET, sy-vline,
  WA_KKRDYN00-HSTUF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KKRDYN00 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_KKRDYN00 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_KKRDYN00 INTO WA_KKRDYN00.


*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 VONJHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_KKRDYN00-VONJHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKRDYN00-VONJHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field BISJHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_KKRDYN00-BISJHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKRDYN00-BISJHR.
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_KKRDYN00_STR, 
HIEART TYPE STRING,
HIERID TYPE STRING,
KOKRS TYPE STRING,
VONDAT TYPE STRING,
BISDAT TYPE STRING,
VONPER TYPE STRING,
BISPER TYPE STRING,
VONJHR TYPE STRING,
BISJHR TYPE STRING,
RESET TYPE STRING,
HSTUF TYPE STRING,
ROOT30 TYPE STRING,
ROOT50 TYPE STRING,
ROOT60 TYPE STRING,
KNOT30 TYPE STRING,
KNOT34 TYPE STRING,
KNOT50 TYPE STRING,
KNOT60 TYPE STRING,
EDTHIE TYPE STRING,
RTEXT TYPE STRING,
KTEXT TYPE STRING,
HIERAR TYPE STRING,
LOESCH TYPE STRING,
OBJ_FIRST TYPE STRING,
OBJ_TOTAL TYPE STRING,
HIATEXT TYPE STRING,
HIDTEXT TYPE STRING,
KRSTEXT TYPE STRING,
NO_RESET TYPE STRING,
OBJGEN TYPE STRING,
SELID TYPE STRING,
BATCH TYPE STRING,
WERKS TYPE STRING,
VERD TYPE STRING,
TXT_NOGEN TYPE STRING,
TXT_NOREP TYPE STRING,
TXT_REPL TYPE STRING,
PARAL_ONL TYPE STRING,
PARAL_TASK TYPE STRING,
PARAL_NODE TYPE STRING,
PARAL_SERV TYPE STRING,
PARAL_BLSI TYPE STRING,
BEZEICHNUNG TYPE STRING,
SPOOL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KKRDYN00_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_KKRDYN00_STR-HIEART sy-vline 
WA_KKRDYN00_STR-HIERID sy-vline 
WA_KKRDYN00_STR-KOKRS sy-vline 
WA_KKRDYN00_STR-VONDAT sy-vline 
WA_KKRDYN00_STR-BISDAT sy-vline 
WA_KKRDYN00_STR-VONPER sy-vline 
WA_KKRDYN00_STR-BISPER sy-vline 
WA_KKRDYN00_STR-VONJHR sy-vline 
WA_KKRDYN00_STR-BISJHR sy-vline 
WA_KKRDYN00_STR-RESET sy-vline 
WA_KKRDYN00_STR-HSTUF sy-vline 
WA_KKRDYN00_STR-ROOT30 sy-vline 
WA_KKRDYN00_STR-ROOT50 sy-vline 
WA_KKRDYN00_STR-ROOT60 sy-vline 
WA_KKRDYN00_STR-KNOT30 sy-vline 
WA_KKRDYN00_STR-KNOT34 sy-vline 
WA_KKRDYN00_STR-KNOT50 sy-vline 
WA_KKRDYN00_STR-KNOT60 sy-vline 
WA_KKRDYN00_STR-EDTHIE sy-vline 
WA_KKRDYN00_STR-RTEXT sy-vline 
WA_KKRDYN00_STR-KTEXT sy-vline 
WA_KKRDYN00_STR-HIERAR sy-vline 
WA_KKRDYN00_STR-LOESCH sy-vline 
WA_KKRDYN00_STR-OBJ_FIRST sy-vline 
WA_KKRDYN00_STR-OBJ_TOTAL sy-vline 
WA_KKRDYN00_STR-HIATEXT sy-vline 
WA_KKRDYN00_STR-HIDTEXT sy-vline 
WA_KKRDYN00_STR-KRSTEXT sy-vline 
WA_KKRDYN00_STR-NO_RESET sy-vline 
WA_KKRDYN00_STR-OBJGEN sy-vline 
WA_KKRDYN00_STR-SELID sy-vline 
WA_KKRDYN00_STR-BATCH sy-vline 
WA_KKRDYN00_STR-WERKS sy-vline 
WA_KKRDYN00_STR-VERD sy-vline 
WA_KKRDYN00_STR-TXT_NOGEN sy-vline 
WA_KKRDYN00_STR-TXT_NOREP sy-vline 
WA_KKRDYN00_STR-TXT_REPL sy-vline 
WA_KKRDYN00_STR-PARAL_ONL sy-vline 
WA_KKRDYN00_STR-PARAL_TASK sy-vline 
WA_KKRDYN00_STR-PARAL_NODE sy-vline 
WA_KKRDYN00_STR-PARAL_SERV sy-vline 
WA_KKRDYN00_STR-PARAL_BLSI sy-vline 
WA_KKRDYN00_STR-BEZEICHNUNG sy-vline 
WA_KKRDYN00_STR-SPOOL sy-vline      INTO ld_text SEPARATED BY SPACE.

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