ABAP Select data from SAP table ATSYC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ATSYC
*  INTO TABLE @DATA(IT_ATSYC2).
*--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_ATSYC INDEX 1 INTO DATA(WA_ATSYC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ATSYC>-MANDT = 1.
<ATSYC>-AUSWT = 1.
<ATSYC>-AUTGR = 1.
<ATSYC>-BCURVE = 1.
<ATSYC>-BCURVEB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ATSYC-BCURVEM, sy-vline,
  WA_ATSYC-DVOLARTB, sy-vline,
  WA_ATSYC-DVOLARTG, sy-vline,
  WA_ATSYC-DVOLARTM, sy-vline,
  WA_ATSYC-ZVOLARTG, sy-vline,
  WA_ATSYC-ZVOLARTB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ATSYC 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_ATSYC 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_ATSYC INTO WA_ATSYC.


*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_ATSYC_STR, 
MANDT TYPE STRING,
AUSWT TYPE STRING,
AUTGR TYPE STRING,
BCURVE TYPE STRING,
BCURVEB TYPE STRING,
BCURVEM TYPE STRING,
DVOLARTB TYPE STRING,
DVOLARTG TYPE STRING,
DVOLARTM TYPE STRING,
ZVOLARTG TYPE STRING,
ZVOLARTB TYPE STRING,
ZVOLARTM TYPE STRING,
WVOLARTG TYPE STRING,
WVOLARTB TYPE STRING,
WVOLARTM TYPE STRING,
KORRARTM TYPE STRING,
KORRARTG TYPE STRING,
KORRARTB TYPE STRING,
SVOLART TYPE STRING,
XCONVADJ TYPE STRING,
XDFCURR TYPE STRING,
XDFINTE TYPE STRING,
XDFIVOL TYPE STRING,
XDFCVOL TYPE STRING,
XDFWERT TYPE STRING,
WPKURSART TYPE STRING,
KURSTG TYPE STRING,
KURSTB TYPE STRING,
KURSTM TYPE STRING,
WKTAGE TYPE STRING,
RWORKMODUS TYPE STRING,
FEEDNAME TYPE STRING,
XHOR_CASHF TYPE STRING,
IDXART TYPE STRING,
BFART TYPE STRING,
XREAL_CASHF TYPE STRING,
COMAXAGEPR TYPE STRING,
COPRTYPE TYPE STRING,
COVOLTYPB TYPE STRING,
COVOLTYPA TYPE STRING,
COVOLTYPM TYPE STRING,
X_INTVAL TYPE STRING,
COEXPVALTYP TYPE STRING,
BCURVEB_RF TYPE STRING,
BCURVEM_RF TYPE STRING,
BCURVE_RF TYPE STRING,
XCREDITSPREAD TYPE STRING,
CSPREAD_TYPE TYPE STRING,
CTY_CURVE_B TYPE STRING,
CTY_CURVE_M TYPE STRING,
CTY_CURVE_A TYPE STRING,
XDDELIVERY TYPE STRING,
DD_DAYS TYPE STRING,
XCSP_USE_VAR_RT TYPE STRING,
CSP_FWD_RT_TYPE TYPE STRING,
POS23_PRIO TYPE STRING,
OPEX_PRIO TYPE STRING,
HWVOLARTG TYPE STRING,
HWVOLARTB TYPE STRING,
HWVOLARTM TYPE STRING,
XEXTBW TYPE STRING,
XDEST_T1 TYPE STRING,
XFUNC_T1 TYPE STRING,
XDEST_T2 TYPE STRING,
XFUNC_T2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ATSYC_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_ATSYC_STR-MANDT sy-vline 
WA_ATSYC_STR-AUSWT sy-vline 
WA_ATSYC_STR-AUTGR sy-vline 
WA_ATSYC_STR-BCURVE sy-vline 
WA_ATSYC_STR-BCURVEB sy-vline 
WA_ATSYC_STR-BCURVEM sy-vline 
WA_ATSYC_STR-DVOLARTB sy-vline 
WA_ATSYC_STR-DVOLARTG sy-vline 
WA_ATSYC_STR-DVOLARTM sy-vline 
WA_ATSYC_STR-ZVOLARTG sy-vline 
WA_ATSYC_STR-ZVOLARTB sy-vline 
WA_ATSYC_STR-ZVOLARTM sy-vline 
WA_ATSYC_STR-WVOLARTG sy-vline 
WA_ATSYC_STR-WVOLARTB sy-vline 
WA_ATSYC_STR-WVOLARTM sy-vline 
WA_ATSYC_STR-KORRARTM sy-vline 
WA_ATSYC_STR-KORRARTG sy-vline 
WA_ATSYC_STR-KORRARTB sy-vline 
WA_ATSYC_STR-SVOLART sy-vline 
WA_ATSYC_STR-XCONVADJ sy-vline 
WA_ATSYC_STR-XDFCURR sy-vline 
WA_ATSYC_STR-XDFINTE sy-vline 
WA_ATSYC_STR-XDFIVOL sy-vline 
WA_ATSYC_STR-XDFCVOL sy-vline 
WA_ATSYC_STR-XDFWERT sy-vline 
WA_ATSYC_STR-WPKURSART sy-vline 
WA_ATSYC_STR-KURSTG sy-vline 
WA_ATSYC_STR-KURSTB sy-vline 
WA_ATSYC_STR-KURSTM sy-vline 
WA_ATSYC_STR-WKTAGE sy-vline 
WA_ATSYC_STR-RWORKMODUS sy-vline 
WA_ATSYC_STR-FEEDNAME sy-vline 
WA_ATSYC_STR-XHOR_CASHF sy-vline 
WA_ATSYC_STR-IDXART sy-vline 
WA_ATSYC_STR-BFART sy-vline 
WA_ATSYC_STR-XREAL_CASHF sy-vline 
WA_ATSYC_STR-COMAXAGEPR sy-vline 
WA_ATSYC_STR-COPRTYPE sy-vline 
WA_ATSYC_STR-COVOLTYPB sy-vline 
WA_ATSYC_STR-COVOLTYPA sy-vline 
WA_ATSYC_STR-COVOLTYPM sy-vline 
WA_ATSYC_STR-X_INTVAL sy-vline 
WA_ATSYC_STR-COEXPVALTYP sy-vline 
WA_ATSYC_STR-BCURVEB_RF sy-vline 
WA_ATSYC_STR-BCURVEM_RF sy-vline 
WA_ATSYC_STR-BCURVE_RF sy-vline 
WA_ATSYC_STR-XCREDITSPREAD sy-vline 
WA_ATSYC_STR-CSPREAD_TYPE sy-vline 
WA_ATSYC_STR-CTY_CURVE_B sy-vline 
WA_ATSYC_STR-CTY_CURVE_M sy-vline 
WA_ATSYC_STR-CTY_CURVE_A sy-vline 
WA_ATSYC_STR-XDDELIVERY sy-vline 
WA_ATSYC_STR-DD_DAYS sy-vline 
WA_ATSYC_STR-XCSP_USE_VAR_RT sy-vline 
WA_ATSYC_STR-CSP_FWD_RT_TYPE sy-vline 
WA_ATSYC_STR-POS23_PRIO sy-vline 
WA_ATSYC_STR-OPEX_PRIO sy-vline 
WA_ATSYC_STR-HWVOLARTG sy-vline 
WA_ATSYC_STR-HWVOLARTB sy-vline 
WA_ATSYC_STR-HWVOLARTM sy-vline 
WA_ATSYC_STR-XEXTBW sy-vline 
WA_ATSYC_STR-XDEST_T1 sy-vline 
WA_ATSYC_STR-XFUNC_T1 sy-vline 
WA_ATSYC_STR-XDEST_T2 sy-vline 
WA_ATSYC_STR-XFUNC_T2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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