ABAP Select data from SAP table DDDDLCHARTYPES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DDDDLCHARTYPES
*  INTO TABLE @DATA(IT_DDDDLCHARTYPES2).
*--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_DDDDLCHARTYPES INDEX 1 INTO DATA(WA_DDDDLCHARTYPES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DDDDLCHARTYPES>-KCHAR = 1.
<DDDDLCHARTYPES>-CSTRING = 1.
<DDDDLCHARTYPES>-CCHAR1 = 1.
<DDDDLCHARTYPES>-CCHAR2 = 1.
<DDDDLCHARTYPES>-CCHAR3 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DDDDLCHARTYPES-CCHAR4, sy-vline,
  WA_DDDDLCHARTYPES-CCHAR5, sy-vline,
  WA_DDDDLCHARTYPES-CCHAR6, sy-vline,
  WA_DDDDLCHARTYPES-CCHAR8, sy-vline,
  WA_DDDDLCHARTYPES-CCHAR10, sy-vline,
  WA_DDDDLCHARTYPES-CCHAR30, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DDDDLCHARTYPES 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_DDDDLCHARTYPES 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_DDDDLCHARTYPES INTO WA_DDDDLCHARTYPES.


*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_DDDDLCHARTYPES_STR, 
KCHAR TYPE STRING,
CSTRING TYPE STRING,
CCHAR1 TYPE STRING,
CCHAR2 TYPE STRING,
CCHAR3 TYPE STRING,
CCHAR4 TYPE STRING,
CCHAR5 TYPE STRING,
CCHAR6 TYPE STRING,
CCHAR8 TYPE STRING,
CCHAR10 TYPE STRING,
CCHAR30 TYPE STRING,
CCHAR50 TYPE STRING,
CCHAR100 TYPE STRING,
CCHAR250 TYPE STRING,
CCHAR1333 TYPE STRING,
CUNIT TYPE STRING,
CDATS TYPE STRING,
CTIMS TYPE STRING,
CLANG TYPE STRING,
CCUKY TYPE STRING,
CSSTR1 TYPE STRING,
CSSTR2 TYPE STRING,
CSSTR3 TYPE STRING,
CSSTR4 TYPE STRING,
CSSTR5 TYPE STRING,
CSSTR6 TYPE STRING,
CSSTR8 TYPE STRING,
CSSTR10 TYPE STRING,
CSSTR30 TYPE STRING,
CSSTR50 TYPE STRING,
CSSTR100 TYPE STRING,
CSSTR250 TYPE STRING,
CSSTR1333 TYPE STRING,
CDATN TYPE STRING,
CTIMN TYPE STRING,
CUTCL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DDDDLCHARTYPES_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_DDDDLCHARTYPES_STR-KCHAR sy-vline 
WA_DDDDLCHARTYPES_STR-CSTRING sy-vline 
WA_DDDDLCHARTYPES_STR-CCHAR1 sy-vline 
WA_DDDDLCHARTYPES_STR-CCHAR2 sy-vline 
WA_DDDDLCHARTYPES_STR-CCHAR3 sy-vline 
WA_DDDDLCHARTYPES_STR-CCHAR4 sy-vline 
WA_DDDDLCHARTYPES_STR-CCHAR5 sy-vline 
WA_DDDDLCHARTYPES_STR-CCHAR6 sy-vline 
WA_DDDDLCHARTYPES_STR-CCHAR8 sy-vline 
WA_DDDDLCHARTYPES_STR-CCHAR10 sy-vline 
WA_DDDDLCHARTYPES_STR-CCHAR30 sy-vline 
WA_DDDDLCHARTYPES_STR-CCHAR50 sy-vline 
WA_DDDDLCHARTYPES_STR-CCHAR100 sy-vline 
WA_DDDDLCHARTYPES_STR-CCHAR250 sy-vline 
WA_DDDDLCHARTYPES_STR-CCHAR1333 sy-vline 
WA_DDDDLCHARTYPES_STR-CUNIT sy-vline 
WA_DDDDLCHARTYPES_STR-CDATS sy-vline 
WA_DDDDLCHARTYPES_STR-CTIMS sy-vline 
WA_DDDDLCHARTYPES_STR-CLANG sy-vline 
WA_DDDDLCHARTYPES_STR-CCUKY sy-vline 
WA_DDDDLCHARTYPES_STR-CSSTR1 sy-vline 
WA_DDDDLCHARTYPES_STR-CSSTR2 sy-vline 
WA_DDDDLCHARTYPES_STR-CSSTR3 sy-vline 
WA_DDDDLCHARTYPES_STR-CSSTR4 sy-vline 
WA_DDDDLCHARTYPES_STR-CSSTR5 sy-vline 
WA_DDDDLCHARTYPES_STR-CSSTR6 sy-vline 
WA_DDDDLCHARTYPES_STR-CSSTR8 sy-vline 
WA_DDDDLCHARTYPES_STR-CSSTR10 sy-vline 
WA_DDDDLCHARTYPES_STR-CSSTR30 sy-vline 
WA_DDDDLCHARTYPES_STR-CSSTR50 sy-vline 
WA_DDDDLCHARTYPES_STR-CSSTR100 sy-vline 
WA_DDDDLCHARTYPES_STR-CSSTR250 sy-vline 
WA_DDDDLCHARTYPES_STR-CSSTR1333 sy-vline 
WA_DDDDLCHARTYPES_STR-CDATN sy-vline 
WA_DDDDLCHARTYPES_STR-CTIMN sy-vline 
WA_DDDDLCHARTYPES_STR-CUTCL sy-vline      INTO ld_text SEPARATED BY SPACE.

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