ABAP Select data from SAP table UCD_SX_DA_CHARKEY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UCD_SX_DA_CHARKEY
*  INTO TABLE @DATA(IT_UCD_SX_DA_CHARKEY2).
*--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_UCD_SX_DA_CHARKEY INDEX 1 INTO DATA(WA_UCD_SX_DA_CHARKEY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UCD_SX_DA_CHARKEY>-S_CHAR = 1.
<UCD_SX_DA_CHARKEY>-INCLUDEREPUNIT = 1.
<UCD_SX_DA_CHARKEY>-DUMMY = 1.
<UCD_SX_DA_CHARKEY>-INCLUDEPARTNER = 1.
<UCD_SX_DA_CHARKEY>-DUMMY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UCD_SX_DA_CHARKEY-INCLUDEINVESTEE, sy-vline,
  WA_UCD_SX_DA_CHARKEY-DUMMY, sy-vline,
  WA_UCD_SX_DA_CHARKEY-INCLUDEREPGROUP, sy-vline,
  WA_UCD_SX_DA_CHARKEY-DUMMY, sy-vline,
  WA_UCD_SX_DA_CHARKEY-INCLUDEDOCNR, sy-vline,
  WA_UCD_SX_DA_CHARKEY-DUMMY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UCD_SX_DA_CHARKEY 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_UCD_SX_DA_CHARKEY 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_UCD_SX_DA_CHARKEY INTO WA_UCD_SX_DA_CHARKEY.


*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_UCD_SX_DA_CHARKEY_STR, 
S_CHAR TYPE STRING,
INCLUDEREPUNIT TYPE STRING,
DUMMY TYPE STRING,
INCLUDEPARTNER TYPE STRING,
DUMMY TYPE STRING,
INCLUDEINVESTEE TYPE STRING,
DUMMY TYPE STRING,
INCLUDEREPGROUP TYPE STRING,
DUMMY TYPE STRING,
INCLUDEDOCNR TYPE STRING,
DUMMY TYPE STRING,
NODE TYPE STRING,
INDEX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UCD_SX_DA_CHARKEY_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_UCD_SX_DA_CHARKEY_STR-S_CHAR sy-vline 
WA_UCD_SX_DA_CHARKEY_STR-INCLUDEREPUNIT sy-vline 
WA_UCD_SX_DA_CHARKEY_STR-DUMMY sy-vline 
WA_UCD_SX_DA_CHARKEY_STR-INCLUDEPARTNER sy-vline 
WA_UCD_SX_DA_CHARKEY_STR-DUMMY sy-vline 
WA_UCD_SX_DA_CHARKEY_STR-INCLUDEINVESTEE sy-vline 
WA_UCD_SX_DA_CHARKEY_STR-DUMMY sy-vline 
WA_UCD_SX_DA_CHARKEY_STR-INCLUDEREPGROUP sy-vline 
WA_UCD_SX_DA_CHARKEY_STR-DUMMY sy-vline 
WA_UCD_SX_DA_CHARKEY_STR-INCLUDEDOCNR sy-vline 
WA_UCD_SX_DA_CHARKEY_STR-DUMMY sy-vline 
WA_UCD_SX_DA_CHARKEY_STR-NODE sy-vline 
WA_UCD_SX_DA_CHARKEY_STR-INDEX sy-vline      INTO ld_text SEPARATED BY SPACE.

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