ABAP Select data from SAP table DCTBFKCHKE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DCTBFKCHKE
*  INTO TABLE @DATA(IT_DCTBFKCHKE2).
*--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_DCTBFKCHKE INDEX 1 INTO DATA(WA_DCTBFKCHKE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DCTBFKCHKE>-MODUS = 1.
<DCTBFKCHKE>-TABCLASS = 1.
<DCTBFKCHKE>-AS4LOCAL = 1.
<DCTBFKCHKE>-WARNDELETE = 1.
<DCTBFKCHKE>-AGGRUSAGE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DCTBFKCHKE-AGGRCHANGE, sy-vline,
  WA_DCTBFKCHKE-MULTITEXT, sy-vline,
  WA_DCTBFKCHKE-ENTTABEXI, sy-vline,
  WA_DCTBFKCHKE-TRANSDEP, sy-vline,
  WA_DCTBFKCHKE-CHKTABACT, sy-vline,
  WA_DCTBFKCHKE-CHKTABCYCL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DCTBFKCHKE 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_DCTBFKCHKE 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_DCTBFKCHKE INTO WA_DCTBFKCHKE.


*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_DCTBFKCHKE_STR, 
MODUS TYPE STRING,
TABCLASS TYPE STRING,
AS4LOCAL TYPE STRING,
WARNDELETE TYPE STRING,
AGGRUSAGE TYPE STRING,
AGGRCHANGE TYPE STRING,
MULTITEXT TYPE STRING,
ENTTABEXI TYPE STRING,
TRANSDEP TYPE STRING,
CHKTABACT TYPE STRING,
CHKTABCYCL TYPE STRING,
FRKARTCARD TYPE STRING,
WRONGCARD TYPE STRING,
WRONGFART TYPE STRING,
NOTEXTFRK TYPE STRING,
MSGARBGB TYPE STRING,
CHKFLDINCL TYPE STRING,
FTABCHANGE TYPE STRING,
UNCOMPLETE TYPE STRING,
REPUNCOMPL TYPE STRING,
ADDFRKFLD TYPE STRING,
SAMEDOMAIN TYPE STRING,
FIELDEXIST TYPE STRING,
WRONGCONST TYPE STRING,
PART_CONST TYPE STRING,
GENCHKENTR TYPE STRING,
STRGEXIST TYPE STRING,
ABAP_LANG_VERS_FRGN_KEYS_CHECK TYPE STRING,
LUSER TYPE STRING,
LDATE TYPE STRING,
LTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DCTBFKCHKE_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_DCTBFKCHKE_STR-MODUS sy-vline 
WA_DCTBFKCHKE_STR-TABCLASS sy-vline 
WA_DCTBFKCHKE_STR-AS4LOCAL sy-vline 
WA_DCTBFKCHKE_STR-WARNDELETE sy-vline 
WA_DCTBFKCHKE_STR-AGGRUSAGE sy-vline 
WA_DCTBFKCHKE_STR-AGGRCHANGE sy-vline 
WA_DCTBFKCHKE_STR-MULTITEXT sy-vline 
WA_DCTBFKCHKE_STR-ENTTABEXI sy-vline 
WA_DCTBFKCHKE_STR-TRANSDEP sy-vline 
WA_DCTBFKCHKE_STR-CHKTABACT sy-vline 
WA_DCTBFKCHKE_STR-CHKTABCYCL sy-vline 
WA_DCTBFKCHKE_STR-FRKARTCARD sy-vline 
WA_DCTBFKCHKE_STR-WRONGCARD sy-vline 
WA_DCTBFKCHKE_STR-WRONGFART sy-vline 
WA_DCTBFKCHKE_STR-NOTEXTFRK sy-vline 
WA_DCTBFKCHKE_STR-MSGARBGB sy-vline 
WA_DCTBFKCHKE_STR-CHKFLDINCL sy-vline 
WA_DCTBFKCHKE_STR-FTABCHANGE sy-vline 
WA_DCTBFKCHKE_STR-UNCOMPLETE sy-vline 
WA_DCTBFKCHKE_STR-REPUNCOMPL sy-vline 
WA_DCTBFKCHKE_STR-ADDFRKFLD sy-vline 
WA_DCTBFKCHKE_STR-SAMEDOMAIN sy-vline 
WA_DCTBFKCHKE_STR-FIELDEXIST sy-vline 
WA_DCTBFKCHKE_STR-WRONGCONST sy-vline 
WA_DCTBFKCHKE_STR-PART_CONST sy-vline 
WA_DCTBFKCHKE_STR-GENCHKENTR sy-vline 
WA_DCTBFKCHKE_STR-STRGEXIST sy-vline 
WA_DCTBFKCHKE_STR-ABAP_LANG_VERS_FRGN_KEYS_CHECK sy-vline 
WA_DCTBFKCHKE_STR-LUSER sy-vline 
WA_DCTBFKCHKE_STR-LDATE sy-vline 
WA_DCTBFKCHKE_STR-LTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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