ABAP Select data from SAP table /ATL/INT_OT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ATL/INT_OT 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 /ATL/INT_OT. 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 /ATL/INT_OT 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_/ATL/INT_OT TYPE STANDARD TABLE OF /ATL/INT_OT,
      WA_/ATL/INT_OT TYPE /ATL/INT_OT,
      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: </ATL/INT_OT> TYPE /ATL/INT_OT.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ATL/INT_OT
  INTO TABLE IT_/ATL/INT_OT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ATL/INT_OT
*  INTO TABLE @DATA(IT_/ATL/INT_OT2).
*--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_/ATL/INT_OT INDEX 1 INTO DATA(WA_/ATL/INT_OT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ATL/INT_OT ASSIGNING </ATL/INT_OT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ATL/INT_OT>-ZSTATUS = 1.
</ATL/INT_OT>-FILLER = 1.
</ATL/INT_OT>-ZCRDNUM = 1.
</ATL/INT_OT>-CCBRAND = 1.
</ATL/INT_OT>-CLEARID = 1.

ENDLOOP.

LOOP AT IT_/ATL/INT_OT INTO WA_/ATL/INT_OT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ATL/INT_OT-SERVCOD, sy-vline,
  WA_/ATL/INT_OT-ZPARAM, sy-vline,
  WA_/ATL/INT_OT-ZVALDAT, sy-vline,
  WA_/ATL/INT_OT-IDNUM_9ST, sy-vline,
  WA_/ATL/INT_OT-CVVCVST, sy-vline,
  WA_/ATL/INT_OT-ZAMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ATL/INT_OT 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_/ATL/INT_OT 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_/ATL/INT_OT INTO WA_/ATL/INT_OT.


*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_/ATL/INT_OT_STR, 
ZSTATUS TYPE STRING,
FILLER TYPE STRING,
ZCRDNUM TYPE STRING,
CCBRAND TYPE STRING,
CLEARID TYPE STRING,
SERVCOD TYPE STRING,
ZPARAM TYPE STRING,
ZVALDAT TYPE STRING,
IDNUM_9ST TYPE STRING,
CVVCVST TYPE STRING,
ZAMOUNT TYPE STRING,
FILLER2 TYPE STRING,
STAR_AMOUNT TYPE STRING,
CLEARID1 TYPE STRING,
ZDEALTYPE TYPE STRING,
ZCRDTYP TYPE STRING,
FILLER3 TYPE STRING,
ZCURR TYPE STRING,
ZDOTYPE TYPE STRING,
MOADON TYPE STRING,
ZAKNRES TYPE STRING,
ZAKNBY TYPE STRING,
ZAKNNO TYPE STRING,
ZFIRSTPM TYPE STRING,
ZRESTPM TYPE STRING,
ZCRDPAY TYPE STRING,
ZNUMFILE TYPE STRING,
ZKPNO TYPE STRING,
ZNUMKP TYPE STRING,
ZCRDNAM TYPE STRING,
TURISTFL TYPE STRING,
REFERENCE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ATL/INT_OT_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_/ATL/INT_OT_STR-ZSTATUS sy-vline 
WA_/ATL/INT_OT_STR-FILLER sy-vline 
WA_/ATL/INT_OT_STR-ZCRDNUM sy-vline 
WA_/ATL/INT_OT_STR-CCBRAND sy-vline 
WA_/ATL/INT_OT_STR-CLEARID sy-vline 
WA_/ATL/INT_OT_STR-SERVCOD sy-vline 
WA_/ATL/INT_OT_STR-ZPARAM sy-vline 
WA_/ATL/INT_OT_STR-ZVALDAT sy-vline 
WA_/ATL/INT_OT_STR-IDNUM_9ST sy-vline 
WA_/ATL/INT_OT_STR-CVVCVST sy-vline 
WA_/ATL/INT_OT_STR-ZAMOUNT sy-vline 
WA_/ATL/INT_OT_STR-FILLER2 sy-vline 
WA_/ATL/INT_OT_STR-STAR_AMOUNT sy-vline 
WA_/ATL/INT_OT_STR-CLEARID1 sy-vline 
WA_/ATL/INT_OT_STR-ZDEALTYPE sy-vline 
WA_/ATL/INT_OT_STR-ZCRDTYP sy-vline 
WA_/ATL/INT_OT_STR-FILLER3 sy-vline 
WA_/ATL/INT_OT_STR-ZCURR sy-vline 
WA_/ATL/INT_OT_STR-ZDOTYPE sy-vline 
WA_/ATL/INT_OT_STR-MOADON sy-vline 
WA_/ATL/INT_OT_STR-ZAKNRES sy-vline 
WA_/ATL/INT_OT_STR-ZAKNBY sy-vline 
WA_/ATL/INT_OT_STR-ZAKNNO sy-vline 
WA_/ATL/INT_OT_STR-ZFIRSTPM sy-vline 
WA_/ATL/INT_OT_STR-ZRESTPM sy-vline 
WA_/ATL/INT_OT_STR-ZCRDPAY sy-vline 
WA_/ATL/INT_OT_STR-ZNUMFILE sy-vline 
WA_/ATL/INT_OT_STR-ZKPNO sy-vline 
WA_/ATL/INT_OT_STR-ZNUMKP sy-vline 
WA_/ATL/INT_OT_STR-ZCRDNAM sy-vline 
WA_/ATL/INT_OT_STR-TURISTFL sy-vline 
WA_/ATL/INT_OT_STR-REFERENCE sy-vline      INTO ld_text SEPARATED BY SPACE.

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