ABAP Select data from SAP table TRLIS_AD_LIST_ITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRLIS_AD_LIST_ITEM
*  INTO TABLE @DATA(IT_TRLIS_AD_LIST_ITEM2).
*--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_TRLIS_AD_LIST_ITEM INDEX 1 INTO DATA(WA_TRLIS_AD_LIST_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRLIS_AD_LIST_ITEM>-POSITION_ID = 1.
<TRLIS_AD_LIST_ITEM>-TRANSACTION_DATE = 1.
<TRLIS_AD_LIST_ITEM>-FLOWTYPE = 1.
<TRLIS_AD_LIST_ITEM>-FLOWTYPE_TXT = 1.
<TRLIS_AD_LIST_ITEM>-KEY_DATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRLIS_AD_LIST_ITEM-KEY_DATE_INCL, sy-vline,
  WA_TRLIS_AD_LIST_ITEM-KEY_DATE_ULT, sy-vline,
  WA_TRLIS_AD_LIST_ITEM-CALC_BEGIN, sy-vline,
  WA_TRLIS_AD_LIST_ITEM-CALC_END, sy-vline,
  WA_TRLIS_AD_LIST_ITEM-DUE_DATE, sy-vline,
  WA_TRLIS_AD_LIST_ITEM-DAY_METHOD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRLIS_AD_LIST_ITEM 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_TRLIS_AD_LIST_ITEM 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_TRLIS_AD_LIST_ITEM INTO WA_TRLIS_AD_LIST_ITEM.


*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 EXCRT, internal->external for field FX_RATE_POS_TO_VAL
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_TRLIS_AD_LIST_ITEM-FX_RATE_POS_TO_VAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRLIS_AD_LIST_ITEM-FX_RATE_POS_TO_VAL.
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_TRLIS_AD_LIST_ITEM_STR, 
POSITION_ID TYPE STRING,
TRANSACTION_DATE TYPE STRING,
FLOWTYPE TYPE STRING,
FLOWTYPE_TXT TYPE STRING,
KEY_DATE TYPE STRING,
KEY_DATE_INCL TYPE STRING,
KEY_DATE_ULT TYPE STRING,
CALC_BEGIN TYPE STRING,
CALC_END TYPE STRING,
DUE_DATE TYPE STRING,
DAY_METHOD TYPE STRING,
DAY_METHOD_T TYPE STRING,
POSITION_CURR TYPE STRING,
POSITION_AMT TYPE STRING,
POSAMT_IDX_CLEAN TYPE STRING,
VALUATION_CURR TYPE STRING,
VALUATION_AMT TYPE STRING,
FX_RATE_POS_TO_VAL TYPE STRING,
FX_RATE_TYPE TYPE STRING,
TRD_BUSTRANSID TYPE STRING,
TRD_BUSTRANSCAT TYPE STRING,
TRD_FLOWNR TYPE STRING,
TYPE TYPE STRING,
NUMBER_DAYS TYPE STRING,
DAYS_IN_PERIOD TYPE STRING,
ABASTAGE TYPE STRING,
TRANSACTION_STATE TYPE STRING,
PART_POS_AMT TYPE STRING,
PART_VAL_AMT TYPE STRING,
COMP_POSITION_AMT TYPE STRING,
COMP_VALUATION_AMT TYPE STRING,
PKOND TYPE STRING,
PAVGINTEREST TYPE STRING,
JEXPOZINS TYPE STRING,
BBASIS TYPE STRING,
PPAYMENT TYPE STRING,
SZBMETH TYPE STRING,
SKALIDWT TYPE STRING,
LIST_FLOW_CAT TYPE STRING,
LIST_FLOW_CAT_TXT TYPE STRING,
ROUNDING_RULE TYPE STRING,
PART_PAYMENT_AMT TYPE STRING,
PAYMENT_CURR TYPE STRING,
FX_READ_DATE TYPE STRING,
FX_RATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRLIS_AD_LIST_ITEM_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_TRLIS_AD_LIST_ITEM_STR-POSITION_ID sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-TRANSACTION_DATE sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-FLOWTYPE sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-FLOWTYPE_TXT sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-KEY_DATE sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-KEY_DATE_INCL sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-KEY_DATE_ULT sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-CALC_BEGIN sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-CALC_END sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-DUE_DATE sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-DAY_METHOD sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-DAY_METHOD_T sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-POSITION_CURR sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-POSITION_AMT sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-POSAMT_IDX_CLEAN sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-VALUATION_CURR sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-VALUATION_AMT sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-FX_RATE_POS_TO_VAL sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-FX_RATE_TYPE sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-TRD_BUSTRANSID sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-TRD_BUSTRANSCAT sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-TRD_FLOWNR sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-TYPE sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-NUMBER_DAYS sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-DAYS_IN_PERIOD sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-ABASTAGE sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-TRANSACTION_STATE sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-PART_POS_AMT sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-PART_VAL_AMT sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-COMP_POSITION_AMT sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-COMP_VALUATION_AMT sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-PKOND sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-PAVGINTEREST sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-JEXPOZINS sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-BBASIS sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-PPAYMENT sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-SZBMETH sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-SKALIDWT sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-LIST_FLOW_CAT sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-LIST_FLOW_CAT_TXT sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-ROUNDING_RULE sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-PART_PAYMENT_AMT sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-PAYMENT_CURR sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-FX_READ_DATE sy-vline 
WA_TRLIS_AD_LIST_ITEM_STR-FX_RATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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