ABAP Select data from SAP table DCSHACTCHK 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 DCSHACTCHK 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 DCSHACTCHK. 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 DCSHACTCHK 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_DCSHACTCHK TYPE STANDARD TABLE OF DCSHACTCHK,
      WA_DCSHACTCHK TYPE DCSHACTCHK,
      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: <DCSHACTCHK> TYPE DCSHACTCHK.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DCSHACTCHK
*  INTO TABLE @DATA(IT_DCSHACTCHK2).
*--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_DCSHACTCHK INDEX 1 INTO DATA(WA_DCSHACTCHK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DCSHACTCHK>-OBJNAME_OK = 1.
<DCSHACTCHK>-EXIS_SHLP = 1.
<DCSHACTCHK>-NAME_EQUHD = 1.
<DCSHACTCHK>-SELMTYPEOK = 1.
<DCSHACTCHK>-ELEMEXIOK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DCSHACTCHK-NOFIELDSOK, sy-vline,
  WA_DCSHACTCHK-ATTACHEXOK, sy-vline,
  WA_DCSHACTCHK-APPNOEXIT, sy-vline,
  WA_DCSHACTCHK-SELMEXITOK, sy-vline,
  WA_DCSHACTCHK-SELMEXITAC, sy-vline,
  WA_DCSHACTCHK-SELMETHOK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DCSHACTCHK 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_DCSHACTCHK 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_DCSHACTCHK INTO WA_DCSHACTCHK.


*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_DCSHACTCHK_STR, 
OBJNAME_OK TYPE STRING,
EXIS_SHLP TYPE STRING,
NAME_EQUHD TYPE STRING,
SELMTYPEOK TYPE STRING,
ELEMEXIOK TYPE STRING,
NOFIELDSOK TYPE STRING,
ATTACHEXOK TYPE STRING,
APPNOEXIT TYPE STRING,
SELMEXITOK TYPE STRING,
SELMEXITAC TYPE STRING,
SELMETHOK TYPE STRING,
SELMETHMIS TYPE STRING,
SELMETHSEL TYPE STRING,
HOTKEYOK TYPE STRING,
ONLYONETYP TYPE STRING,
ATLEASTONE TYPE STRING,
DIALOGOK TYPE STRING,
APPENDIF TYPE STRING,
APPENDING TYPE STRING,
SFWOK TYPE STRING,
AUTOSUGGESTOK TYPE STRING,
FUZZYSEARCHOK TYPE STRING,
FUZZY_SIMILAROK TYPE STRING,
FUZZYBASEOBJOK TYPE STRING,
NAME_EQUCO TYPE STRING,
HIDEFLAGOK TYPE STRING,
HOTKEYDOUB TYPE STRING,
NOAPPENDS TYPE STRING,
MAXINCLNUM TYPE STRING,
MAXSWITCHEDOFF TYPE STRING,
NAME_EQUFD TYPE STRING,
FIELDNAMOK TYPE STRING,
DTELEXISTS TYPE STRING,
DTELATOMAR TYPE STRING,
DTELNOSTR TYPE STRING,
DTELNOPRXY TYPE STRING,
FLDFLAGSOK TYPE STRING,
SELDISCONS TYPE STRING,
SELLISELEM TYPE STRING,
NONSENSFLD TYPE STRING,
DISFLDISIN TYPE STRING,
INDX_INFO TYPE STRING,
EXISINSELM TYPE STRING,
FITTOSELM TYPE STRING,
PARHVPRIM TYPE STRING,
DEFAULTDEF TYPE STRING,
DEFAULTFIT TYPE STRING,
REFFIELDOK TYPE STRING,
FLD_DIFFER TYPE STRING,
EXI_OUTPUT TYPE STRING,
FLDPOSOK TYPE STRING,
SELPOSOK TYPE STRING,
LISPOSOK TYPE STRING,
EMPTYLIS TYPE STRING,
RESWIDTHOK TYPE STRING,
PERSHLPPOS TYPE STRING,
CLNTUSEOK TYPE STRING,
MAXSELNUM TYPE STRING,
FRSTEXPCH TYPE STRING,
NAME_EQUAT TYPE STRING,
FIELD_EXIS TYPE STRING,
TYPE_EQUAL TYPE STRING,
TWOVALBACK TYPE STRING,
TWOVALINTO TYPE STRING,
NOVALBACK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DCSHACTCHK_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_DCSHACTCHK_STR-OBJNAME_OK sy-vline 
WA_DCSHACTCHK_STR-EXIS_SHLP sy-vline 
WA_DCSHACTCHK_STR-NAME_EQUHD sy-vline 
WA_DCSHACTCHK_STR-SELMTYPEOK sy-vline 
WA_DCSHACTCHK_STR-ELEMEXIOK sy-vline 
WA_DCSHACTCHK_STR-NOFIELDSOK sy-vline 
WA_DCSHACTCHK_STR-ATTACHEXOK sy-vline 
WA_DCSHACTCHK_STR-APPNOEXIT sy-vline 
WA_DCSHACTCHK_STR-SELMEXITOK sy-vline 
WA_DCSHACTCHK_STR-SELMEXITAC sy-vline 
WA_DCSHACTCHK_STR-SELMETHOK sy-vline 
WA_DCSHACTCHK_STR-SELMETHMIS sy-vline 
WA_DCSHACTCHK_STR-SELMETHSEL sy-vline 
WA_DCSHACTCHK_STR-HOTKEYOK sy-vline 
WA_DCSHACTCHK_STR-ONLYONETYP sy-vline 
WA_DCSHACTCHK_STR-ATLEASTONE sy-vline 
WA_DCSHACTCHK_STR-DIALOGOK sy-vline 
WA_DCSHACTCHK_STR-APPENDIF sy-vline 
WA_DCSHACTCHK_STR-APPENDING sy-vline 
WA_DCSHACTCHK_STR-SFWOK sy-vline 
WA_DCSHACTCHK_STR-AUTOSUGGESTOK sy-vline 
WA_DCSHACTCHK_STR-FUZZYSEARCHOK sy-vline 
WA_DCSHACTCHK_STR-FUZZY_SIMILAROK sy-vline 
WA_DCSHACTCHK_STR-FUZZYBASEOBJOK sy-vline 
WA_DCSHACTCHK_STR-NAME_EQUCO sy-vline 
WA_DCSHACTCHK_STR-HIDEFLAGOK sy-vline 
WA_DCSHACTCHK_STR-HOTKEYDOUB sy-vline 
WA_DCSHACTCHK_STR-NOAPPENDS sy-vline 
WA_DCSHACTCHK_STR-MAXINCLNUM sy-vline 
WA_DCSHACTCHK_STR-MAXSWITCHEDOFF sy-vline 
WA_DCSHACTCHK_STR-NAME_EQUFD sy-vline 
WA_DCSHACTCHK_STR-FIELDNAMOK sy-vline 
WA_DCSHACTCHK_STR-DTELEXISTS sy-vline 
WA_DCSHACTCHK_STR-DTELATOMAR sy-vline 
WA_DCSHACTCHK_STR-DTELNOSTR sy-vline 
WA_DCSHACTCHK_STR-DTELNOPRXY sy-vline 
WA_DCSHACTCHK_STR-FLDFLAGSOK sy-vline 
WA_DCSHACTCHK_STR-SELDISCONS sy-vline 
WA_DCSHACTCHK_STR-SELLISELEM sy-vline 
WA_DCSHACTCHK_STR-NONSENSFLD sy-vline 
WA_DCSHACTCHK_STR-DISFLDISIN sy-vline 
WA_DCSHACTCHK_STR-INDX_INFO sy-vline 
WA_DCSHACTCHK_STR-EXISINSELM sy-vline 
WA_DCSHACTCHK_STR-FITTOSELM sy-vline 
WA_DCSHACTCHK_STR-PARHVPRIM sy-vline 
WA_DCSHACTCHK_STR-DEFAULTDEF sy-vline 
WA_DCSHACTCHK_STR-DEFAULTFIT sy-vline 
WA_DCSHACTCHK_STR-REFFIELDOK sy-vline 
WA_DCSHACTCHK_STR-FLD_DIFFER sy-vline 
WA_DCSHACTCHK_STR-EXI_OUTPUT sy-vline 
WA_DCSHACTCHK_STR-FLDPOSOK sy-vline 
WA_DCSHACTCHK_STR-SELPOSOK sy-vline 
WA_DCSHACTCHK_STR-LISPOSOK sy-vline 
WA_DCSHACTCHK_STR-EMPTYLIS sy-vline 
WA_DCSHACTCHK_STR-RESWIDTHOK sy-vline 
WA_DCSHACTCHK_STR-PERSHLPPOS sy-vline 
WA_DCSHACTCHK_STR-CLNTUSEOK sy-vline 
WA_DCSHACTCHK_STR-MAXSELNUM sy-vline 
WA_DCSHACTCHK_STR-FRSTEXPCH sy-vline 
WA_DCSHACTCHK_STR-NAME_EQUAT sy-vline 
WA_DCSHACTCHK_STR-FIELD_EXIS sy-vline 
WA_DCSHACTCHK_STR-TYPE_EQUAL sy-vline 
WA_DCSHACTCHK_STR-TWOVALBACK sy-vline 
WA_DCSHACTCHK_STR-TWOVALINTO sy-vline 
WA_DCSHACTCHK_STR-NOVALBACK sy-vline      INTO ld_text SEPARATED BY SPACE.

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