ABAP Select data from SAP table DDTTACTRES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DDTTACTRES
*  INTO TABLE @DATA(IT_DDTTACTRES2).
*--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_DDTTACTRES INDEX 1 INTO DATA(WA_DDTTACTRES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DDTTACTRES>-NAME = 1.
<DDTTACTRES>-STATE = 1.
<DDTTACTRES>-ACT_RESULT = 1.
<DDTTACTRES>-DEP_RESULT = 1.
<DDTTACTRES>-NTAB_GEN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DDTTACTRES-MODEFLAG, sy-vline,
  WA_DDTTACTRES-DEPACTION, sy-vline,
  WA_DDTTACTRES-A_PRESENT, sy-vline,
  WA_DDTTACTRES-E_PRESENT, sy-vline,
  WA_DDTTACTRES-W_PRESENT, sy-vline,
  WA_DDTTACTRES-AS4DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DDTTACTRES 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_DDTTACTRES 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_DDTTACTRES INTO WA_DDTTACTRES.


*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_DDTTACTRES_STR, 
NAME TYPE STRING,
STATE TYPE STRING,
ACT_RESULT TYPE STRING,
DEP_RESULT TYPE STRING,
NTAB_GEN TYPE STRING,
MODEFLAG TYPE STRING,
DEPACTION TYPE STRING,
A_PRESENT TYPE STRING,
E_PRESENT TYPE STRING,
W_PRESENT TYPE STRING,
AS4DATE TYPE STRING,
AS4TIME TYPE STRING,
ACT_MODE TYPE STRING,
ACT_ALIAS TYPE STRING,
CHK_ID TYPE STRING,
SAANAME TYPE STRING,
NAMESPACE TYPE STRING,
DDTYPENAME TYPE STRING,
ACCESSMODE TYPE STRING,
KEYDEF TYPE STRING,
KEYKIND TYPE STRING,
INDXHDR TYPE STRING,
KEYDEFKIND TYPE STRING,
KEY_ACC TYPE STRING,
TTYPGEN TYPE STRING,
TTYPUSED TYPE STRING,
RANGESROW TYPE STRING,
DIRECTTYPE TYPE STRING,
DTELACTIVE TYPE STRING,
STRUACTIVE TYPE STRING,
TTYPACTIVE TYPE STRING,
REFTYPE TYPE STRING,
CLIFREFTYP TYPE STRING,
ROWTYPEGEN TYPE STRING,
ROWTYPEKEY TYPE STRING,
PROXYTYPE TYPE STRING,
ABAP_LANG_VERS_USED_OBJ TYPE STRING,
TYPEXISTS TYPE STRING,
NOTVARC TYPE STRING,
NOTTMST TYPE STRING,
TYPLEN TYPE STRING,
TYPDBLEN TYPE STRING,
TYPDECIMAL TYPE STRING,
KEYFDCOUNT TYPE STRING,
KEYFDPOS TYPE STRING,
KEYSYNTAX TYPE STRING,
KFDEXIST TYPE STRING,
KEY_NOTAB TYPE STRING,
EMPTY_KEY TYPE STRING,
KEY_DOUBLE TYPE STRING,
TTRECURSIV TYPE STRING,
TTYPELEN TYPE STRING,
RTTYPFLAGS TYPE STRING,
RTTYPCTYP TYPE STRING,
RTTYPSTRUC TYPE STRING,
RTCTDIRT TYPE STRING,
OCCURS TYPE STRING,
PACKAGECHK TYPE STRING,
SECKEYCHK TYPE STRING,
ALIASNAME TYPE STRING,
SECKEYRESTR TYPE STRING,
SECKEYROWT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DDTTACTRES_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_DDTTACTRES_STR-NAME sy-vline 
WA_DDTTACTRES_STR-STATE sy-vline 
WA_DDTTACTRES_STR-ACT_RESULT sy-vline 
WA_DDTTACTRES_STR-DEP_RESULT sy-vline 
WA_DDTTACTRES_STR-NTAB_GEN sy-vline 
WA_DDTTACTRES_STR-MODEFLAG sy-vline 
WA_DDTTACTRES_STR-DEPACTION sy-vline 
WA_DDTTACTRES_STR-A_PRESENT sy-vline 
WA_DDTTACTRES_STR-E_PRESENT sy-vline 
WA_DDTTACTRES_STR-W_PRESENT sy-vline 
WA_DDTTACTRES_STR-AS4DATE sy-vline 
WA_DDTTACTRES_STR-AS4TIME sy-vline 
WA_DDTTACTRES_STR-ACT_MODE sy-vline 
WA_DDTTACTRES_STR-ACT_ALIAS sy-vline 
WA_DDTTACTRES_STR-CHK_ID sy-vline 
WA_DDTTACTRES_STR-SAANAME sy-vline 
WA_DDTTACTRES_STR-NAMESPACE sy-vline 
WA_DDTTACTRES_STR-DDTYPENAME sy-vline 
WA_DDTTACTRES_STR-ACCESSMODE sy-vline 
WA_DDTTACTRES_STR-KEYDEF sy-vline 
WA_DDTTACTRES_STR-KEYKIND sy-vline 
WA_DDTTACTRES_STR-INDXHDR sy-vline 
WA_DDTTACTRES_STR-KEYDEFKIND sy-vline 
WA_DDTTACTRES_STR-KEY_ACC sy-vline 
WA_DDTTACTRES_STR-TTYPGEN sy-vline 
WA_DDTTACTRES_STR-TTYPUSED sy-vline 
WA_DDTTACTRES_STR-RANGESROW sy-vline 
WA_DDTTACTRES_STR-DIRECTTYPE sy-vline 
WA_DDTTACTRES_STR-DTELACTIVE sy-vline 
WA_DDTTACTRES_STR-STRUACTIVE sy-vline 
WA_DDTTACTRES_STR-TTYPACTIVE sy-vline 
WA_DDTTACTRES_STR-REFTYPE sy-vline 
WA_DDTTACTRES_STR-CLIFREFTYP sy-vline 
WA_DDTTACTRES_STR-ROWTYPEGEN sy-vline 
WA_DDTTACTRES_STR-ROWTYPEKEY sy-vline 
WA_DDTTACTRES_STR-PROXYTYPE sy-vline 
WA_DDTTACTRES_STR-ABAP_LANG_VERS_USED_OBJ sy-vline 
WA_DDTTACTRES_STR-TYPEXISTS sy-vline 
WA_DDTTACTRES_STR-NOTVARC sy-vline 
WA_DDTTACTRES_STR-NOTTMST sy-vline 
WA_DDTTACTRES_STR-TYPLEN sy-vline 
WA_DDTTACTRES_STR-TYPDBLEN sy-vline 
WA_DDTTACTRES_STR-TYPDECIMAL sy-vline 
WA_DDTTACTRES_STR-KEYFDCOUNT sy-vline 
WA_DDTTACTRES_STR-KEYFDPOS sy-vline 
WA_DDTTACTRES_STR-KEYSYNTAX sy-vline 
WA_DDTTACTRES_STR-KFDEXIST sy-vline 
WA_DDTTACTRES_STR-KEY_NOTAB sy-vline 
WA_DDTTACTRES_STR-EMPTY_KEY sy-vline 
WA_DDTTACTRES_STR-KEY_DOUBLE sy-vline 
WA_DDTTACTRES_STR-TTRECURSIV sy-vline 
WA_DDTTACTRES_STR-TTYPELEN sy-vline 
WA_DDTTACTRES_STR-RTTYPFLAGS sy-vline 
WA_DDTTACTRES_STR-RTTYPCTYP sy-vline 
WA_DDTTACTRES_STR-RTTYPSTRUC sy-vline 
WA_DDTTACTRES_STR-RTCTDIRT sy-vline 
WA_DDTTACTRES_STR-OCCURS sy-vline 
WA_DDTTACTRES_STR-PACKAGECHK sy-vline 
WA_DDTTACTRES_STR-SECKEYCHK sy-vline 
WA_DDTTACTRES_STR-ALIASNAME sy-vline 
WA_DDTTACTRES_STR-SECKEYRESTR sy-vline 
WA_DDTTACTRES_STR-SECKEYROWT sy-vline      INTO ld_text SEPARATED BY SPACE.

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