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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ATL/AATRNSF
*  INTO TABLE @DATA(IT_/ATL/AATRNSF2).
*--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/AATRNSF INDEX 1 INTO DATA(WA_/ATL/AATRNSF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ATL/AATRNSF>-MANDT = 1.
</ATL/AATRNSF>-BUKRS = 1.
</ATL/AATRNSF>-ANLN1_FROM = 1.
</ATL/AATRNSF>-ANLN2_FROM = 1.
</ATL/AATRNSF>-BUKRS_TO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ATL/AATRNSF-ANLN1_TO, sy-vline,
  WA_/ATL/AATRNSF-ANLN2_TO, sy-vline,
  WA_/ATL/AATRNSF-TRANSF_DATE, sy-vline,
  WA_/ATL/AATRNSF-AFABE, sy-vline,
  WA_/ATL/AATRNSF-GJAHR, sy-vline,
  WA_/ATL/AATRNSF-PERIOD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ATL/AATRNSF 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/AATRNSF 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/AATRNSF INTO WA_/ATL/AATRNSF.


*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.

*Conversion exit ALPHA, internal->external for field ANLN1_FROM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ATL/AATRNSF-ANLN1_FROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ATL/AATRNSF-ANLN1_FROM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2_FROM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ATL/AATRNSF-ANLN2_FROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ATL/AATRNSF-ANLN2_FROM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN1_TO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ATL/AATRNSF-ANLN1_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ATL/AATRNSF-ANLN1_TO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2_TO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ATL/AATRNSF-ANLN2_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ATL/AATRNSF-ANLN2_TO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/ATL/AATRNSF-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ATL/AATRNSF-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field GAIN_AMOUNT_PY
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_/ATL/AATRNSF-GAIN_AMOUNT_PY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ATL/AATRNSF-GAIN_AMOUNT_PY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field GAIN_AMOUNT_FY
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_/ATL/AATRNSF-GAIN_AMOUNT_FY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ATL/AATRNSF-GAIN_AMOUNT_FY.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/ATL/AATRNSF_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
ANLN1_FROM TYPE STRING,
ANLN2_FROM TYPE STRING,
BUKRS_TO TYPE STRING,
ANLN1_TO TYPE STRING,
ANLN2_TO TYPE STRING,
TRANSF_DATE TYPE STRING,
AFABE TYPE STRING,
GJAHR TYPE STRING,
PERIOD TYPE STRING,
FACTOR_PY TYPE STRING,
FACTOR_ALL TYPE STRING,
GAIN_AMOUNT_PY TYPE STRING,
GAIN_AMOUNT_FY TYPE STRING,
FACTOR_GAIN_PY TYPE STRING,
FACTOR_GAIN_FY TYPE STRING,
FACTOR_TAX_PY TYPE STRING,
FACTOR_TAX TYPE STRING,
FACTOR1_TAX_PY TYPE STRING,
FACTOR1_TAX TYPE STRING,
FACT_TAX_GAIN_PY TYPE STRING,
FACT_TAX_GAIN1PY TYPE STRING,
FACT_TAX_GAIN TYPE STRING,
FACT_TAX_GAIN1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ATL/AATRNSF_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/AATRNSF_STR-MANDT sy-vline 
WA_/ATL/AATRNSF_STR-BUKRS sy-vline 
WA_/ATL/AATRNSF_STR-ANLN1_FROM sy-vline 
WA_/ATL/AATRNSF_STR-ANLN2_FROM sy-vline 
WA_/ATL/AATRNSF_STR-BUKRS_TO sy-vline 
WA_/ATL/AATRNSF_STR-ANLN1_TO sy-vline 
WA_/ATL/AATRNSF_STR-ANLN2_TO sy-vline 
WA_/ATL/AATRNSF_STR-TRANSF_DATE sy-vline 
WA_/ATL/AATRNSF_STR-AFABE sy-vline 
WA_/ATL/AATRNSF_STR-GJAHR sy-vline 
WA_/ATL/AATRNSF_STR-PERIOD sy-vline 
WA_/ATL/AATRNSF_STR-FACTOR_PY sy-vline 
WA_/ATL/AATRNSF_STR-FACTOR_ALL sy-vline 
WA_/ATL/AATRNSF_STR-GAIN_AMOUNT_PY sy-vline 
WA_/ATL/AATRNSF_STR-GAIN_AMOUNT_FY sy-vline 
WA_/ATL/AATRNSF_STR-FACTOR_GAIN_PY sy-vline 
WA_/ATL/AATRNSF_STR-FACTOR_GAIN_FY sy-vline 
WA_/ATL/AATRNSF_STR-FACTOR_TAX_PY sy-vline 
WA_/ATL/AATRNSF_STR-FACTOR_TAX sy-vline 
WA_/ATL/AATRNSF_STR-FACTOR1_TAX_PY sy-vline 
WA_/ATL/AATRNSF_STR-FACTOR1_TAX sy-vline 
WA_/ATL/AATRNSF_STR-FACT_TAX_GAIN_PY sy-vline 
WA_/ATL/AATRNSF_STR-FACT_TAX_GAIN1PY sy-vline 
WA_/ATL/AATRNSF_STR-FACT_TAX_GAIN sy-vline 
WA_/ATL/AATRNSF_STR-FACT_TAX_GAIN1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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