ABAP Select data from SAP table COD_UTILITIES_CA_OPEN_ITEM_S into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COD_UTILITIES_CA_OPEN_ITEM_S
*  INTO TABLE @DATA(IT_COD_UTILITIES_CA_OPEN_ITEM_S2).
*--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_COD_UTILITIES_CA_OPEN_ITEM_S INDEX 1 INTO DATA(WA_COD_UTILITIES_CA_OPEN_ITEM_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COD_UTILITIES_CA_OPEN_ITEM_S>-CONTRACT_ACCOUNT = 1.
<COD_UTILITIES_CA_OPEN_ITEM_S>-OPBEL = 1.
<COD_UTILITIES_CA_OPEN_ITEM_S>-OPUPW = 1.
<COD_UTILITIES_CA_OPEN_ITEM_S>-OPUPK = 1.
<COD_UTILITIES_CA_OPEN_ITEM_S>-OPUPZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COD_UTILITIES_CA_OPEN_ITEM_S-MAIN_TRANSACTION, sy-vline,
  WA_COD_UTILITIES_CA_OPEN_ITEM_S-SUB_TRANSACTION, sy-vline,
  WA_COD_UTILITIES_CA_OPEN_ITEM_S-AMOUNT_TOTAL_TC, sy-vline,
  WA_COD_UTILITIES_CA_OPEN_ITEM_S-AMOUNT, sy-vline,
  WA_COD_UTILITIES_CA_OPEN_ITEM_S-CURRENCY, sy-vline,
  WA_COD_UTILITIES_CA_OPEN_ITEM_S-AMOUNT_TOTAL_LC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COD_UTILITIES_CA_OPEN_ITEM_S 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_COD_UTILITIES_CA_OPEN_ITEM_S 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_COD_UTILITIES_CA_OPEN_ITEM_S INTO WA_COD_UTILITIES_CA_OPEN_ITEM_S.


*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 CONTRACT_ACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COD_UTILITIES_CA_OPEN_ITEM_S-CONTRACT_ACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COD_UTILITIES_CA_OPEN_ITEM_S-CONTRACT_ACCOUNT.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field ABWBL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COD_UTILITIES_CA_OPEN_ITEM_S-ABWBL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COD_UTILITIES_CA_OPEN_ITEM_S-ABWBL.
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_COD_UTILITIES_CA_OPEN_ITEM_S_STR, 
CONTRACT_ACCOUNT TYPE STRING,
OPBEL TYPE STRING,
OPUPW TYPE STRING,
OPUPK TYPE STRING,
OPUPZ TYPE STRING,
MAIN_TRANSACTION TYPE STRING,
SUB_TRANSACTION TYPE STRING,
AMOUNT_TOTAL_TC TYPE STRING,
AMOUNT TYPE STRING,
CURRENCY TYPE STRING,
AMOUNT_TOTAL_LC TYPE STRING,
AMOUNT TYPE STRING,
CURRENCY TYPE STRING,
DEFERRAL_TO TYPE STRING,
NET_DUE_DATE TYPE STRING,
HAS_LOCKS TYPE STRING,
ORIG_INV_NUMBER TYPE STRING,
CALC_PERIOD_FROM TYPE STRING,
CALC_PERIOD_TO TYPE STRING,
DAYS_PAST_DUE TYPE STRING,
TOTAL_AMOUNT_OPEN TYPE STRING,
AMOUNT TYPE STRING,
CURRENCY TYPE STRING,
DUNNING_LEVEL TYPE STRING,
DUNNING_TEXT TYPE STRING,
STEP TYPE STRING,
STEP_TEXT TYPE STRING,
AUGRS TYPE STRING,
HVORG TYPE STRING,
TVORG TYPE STRING,
ABWBL TYPE STRING,
ABWTP TYPE STRING,
OPTXT TYPE STRING,
VOTXT TYPE STRING,
POSTING_DATE TYPE STRING,
ORIGIN_KEY TYPE STRING,
ORIGIN_KEY_DES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COD_UTILITIES_CA_OPEN_ITEM_S_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_COD_UTILITIES_CA_OPEN_ITEM_S_STR-CONTRACT_ACCOUNT sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-OPBEL sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-OPUPW sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-OPUPK sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-OPUPZ sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-MAIN_TRANSACTION sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-SUB_TRANSACTION sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-AMOUNT_TOTAL_TC sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-AMOUNT sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-CURRENCY sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-AMOUNT_TOTAL_LC sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-AMOUNT sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-CURRENCY sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-DEFERRAL_TO sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-NET_DUE_DATE sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-HAS_LOCKS sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-ORIG_INV_NUMBER sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-CALC_PERIOD_FROM sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-CALC_PERIOD_TO sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-DAYS_PAST_DUE sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-TOTAL_AMOUNT_OPEN sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-AMOUNT sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-CURRENCY sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-DUNNING_LEVEL sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-DUNNING_TEXT sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-STEP sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-STEP_TEXT sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-AUGRS sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-HVORG sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-TVORG sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-ABWBL sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-ABWTP sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-OPTXT sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-VOTXT sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-POSTING_DATE sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-ORIGIN_KEY sy-vline 
WA_COD_UTILITIES_CA_OPEN_ITEM_S_STR-ORIGIN_KEY_DES sy-vline      INTO ld_text SEPARATED BY SPACE.

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