ABAP Select data from SAP table /SAPTRX/AOTREFD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPTRX/AOTREFD
*  INTO TABLE @DATA(IT_/SAPTRX/AOTREFD2).
*--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_/SAPTRX/AOTREFD INDEX 1 INTO DATA(WA_/SAPTRX/AOTREFD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPTRX/AOTREFD>-CLIENT = 1.
</SAPTRX/AOTREFD>-AOTYPE = 1.
</SAPTRX/AOTREFD>-AOID = 1.
</SAPTRX/AOTREFD>-TRK_OBJ_TYPE = 1.
</SAPTRX/AOTREFD>-TRXSERVER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPTRX/AOTREFD-TRXOBJECT, sy-vline,
  WA_/SAPTRX/AOTREFD-BUSOBJTYPE, sy-vline,
  WA_/SAPTRX/AOTREFD-BUSOBJKEY, sy-vline,
  WA_/SAPTRX/AOTREFD-MAINTABDEF, sy-vline,
  WA_/SAPTRX/AOTREFD-MAINTABKEY, sy-vline,
  WA_/SAPTRX/AOTREFD-POSTSTATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPTRX/AOTREFD 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_/SAPTRX/AOTREFD 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_/SAPTRX/AOTREFD INTO WA_/SAPTRX/AOTREFD.


*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_/SAPTRX/AOTREFD_STR, 
CLIENT TYPE STRING,
AOTYPE TYPE STRING,
AOID TYPE STRING,
TRK_OBJ_TYPE TYPE STRING,
TRXSERVER TYPE STRING,
TRXOBJECT TYPE STRING,
BUSOBJTYPE TYPE STRING,
BUSOBJKEY TYPE STRING,
MAINTABDEF TYPE STRING,
MAINTABKEY TYPE STRING,
POSTSTATUS TYPE STRING,
AOPOSTACTION TYPE STRING,
TRREL TYPE STRING,
TRACT TYPE STRING,
TRXCOD TYPE STRING,
TRXID TYPE STRING,
CHGDATE TYPE STRING,
CHGTIME TYPE STRING,
PROCLOG TYPE STRING,
BOBJLOG TYPE STRING,
AOBJLOG TYPE STRING,
UPDATEIND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPTRX/AOTREFD_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_/SAPTRX/AOTREFD_STR-CLIENT sy-vline 
WA_/SAPTRX/AOTREFD_STR-AOTYPE sy-vline 
WA_/SAPTRX/AOTREFD_STR-AOID sy-vline 
WA_/SAPTRX/AOTREFD_STR-TRK_OBJ_TYPE sy-vline 
WA_/SAPTRX/AOTREFD_STR-TRXSERVER sy-vline 
WA_/SAPTRX/AOTREFD_STR-TRXOBJECT sy-vline 
WA_/SAPTRX/AOTREFD_STR-BUSOBJTYPE sy-vline 
WA_/SAPTRX/AOTREFD_STR-BUSOBJKEY sy-vline 
WA_/SAPTRX/AOTREFD_STR-MAINTABDEF sy-vline 
WA_/SAPTRX/AOTREFD_STR-MAINTABKEY sy-vline 
WA_/SAPTRX/AOTREFD_STR-POSTSTATUS sy-vline 
WA_/SAPTRX/AOTREFD_STR-AOPOSTACTION sy-vline 
WA_/SAPTRX/AOTREFD_STR-TRREL sy-vline 
WA_/SAPTRX/AOTREFD_STR-TRACT sy-vline 
WA_/SAPTRX/AOTREFD_STR-TRXCOD sy-vline 
WA_/SAPTRX/AOTREFD_STR-TRXID sy-vline 
WA_/SAPTRX/AOTREFD_STR-CHGDATE sy-vline 
WA_/SAPTRX/AOTREFD_STR-CHGTIME sy-vline 
WA_/SAPTRX/AOTREFD_STR-PROCLOG sy-vline 
WA_/SAPTRX/AOTREFD_STR-BOBJLOG sy-vline 
WA_/SAPTRX/AOTREFD_STR-AOBJLOG sy-vline 
WA_/SAPTRX/AOTREFD_STR-UPDATEIND sy-vline      INTO ld_text SEPARATED BY SPACE.

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