ABAP Select data from SAP table /SAPAPO/CURTO_RSP_ITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/CURTO_RSP_ITEM
*  INTO TABLE @DATA(IT_/SAPAPO/CURTO_RSP_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_/SAPAPO/CURTO_RSP_ITEM INDEX 1 INTO DATA(WA_/SAPAPO/CURTO_RSP_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/CURTO_RSP_ITEM>-DATE_TO = 1.
</SAPAPO/CURTO_RSP_ITEM>-DATE_FROM = 1.
</SAPAPO/CURTO_RSP_ITEM>-BODY = 1.
</SAPAPO/CURTO_RSP_ITEM>-RETID = 1.
</SAPAPO/CURTO_RSP_ITEM>-RETNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/CURTO_RSP_ITEM-RETDESCR, sy-vline,
  WA_/SAPAPO/CURTO_RSP_ITEM-OFFSET, sy-vline,
  WA_/SAPAPO/CURTO_RSP_ITEM-KNOBJ, sy-vline,
  WA_/SAPAPO/CURTO_RSP_ITEM-RETSETID, sy-vline,
  WA_/SAPAPO/CURTO_RSP_ITEM-SETNAME, sy-vline,
  WA_/SAPAPO/CURTO_RSP_ITEM-AUTH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/CURTO_RSP_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_/SAPAPO/CURTO_RSP_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_/SAPAPO/CURTO_RSP_ITEM INTO WA_/SAPAPO/CURTO_RSP_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 VRSIO, internal->external for field APOVERS
CALL FUNCTION 'CONVERSION_EXIT_VRSIO_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/CURTO_RSP_ITEM-APOVERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/CURTO_RSP_ITEM-APOVERS.
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_/SAPAPO/CURTO_RSP_ITEM_STR, 
DATE_TO TYPE STRING,
DATE_FROM TYPE STRING,
BODY TYPE STRING,
RETID TYPE STRING,
RETNAME TYPE STRING,
RETDESCR TYPE STRING,
OFFSET TYPE STRING,
KNOBJ TYPE STRING,
RETSETID TYPE STRING,
SETNAME TYPE STRING,
AUTH TYPE STRING,
EFFID TYPE STRING,
EFFNAME TYPE STRING,
APOVERS TYPE STRING,
LOCID TYPE STRING,
LOCNO TYPE STRING,
SELLOC TYPE STRING,
SELVERS TYPE STRING,
SINGLEFLAG TYPE STRING,
CONJUNCTIONS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/CURTO_RSP_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_/SAPAPO/CURTO_RSP_ITEM_STR-DATE_TO sy-vline 
WA_/SAPAPO/CURTO_RSP_ITEM_STR-DATE_FROM sy-vline 
WA_/SAPAPO/CURTO_RSP_ITEM_STR-BODY sy-vline 
WA_/SAPAPO/CURTO_RSP_ITEM_STR-RETID sy-vline 
WA_/SAPAPO/CURTO_RSP_ITEM_STR-RETNAME sy-vline 
WA_/SAPAPO/CURTO_RSP_ITEM_STR-RETDESCR sy-vline 
WA_/SAPAPO/CURTO_RSP_ITEM_STR-OFFSET sy-vline 
WA_/SAPAPO/CURTO_RSP_ITEM_STR-KNOBJ sy-vline 
WA_/SAPAPO/CURTO_RSP_ITEM_STR-RETSETID sy-vline 
WA_/SAPAPO/CURTO_RSP_ITEM_STR-SETNAME sy-vline 
WA_/SAPAPO/CURTO_RSP_ITEM_STR-AUTH sy-vline 
WA_/SAPAPO/CURTO_RSP_ITEM_STR-EFFID sy-vline 
WA_/SAPAPO/CURTO_RSP_ITEM_STR-EFFNAME sy-vline 
WA_/SAPAPO/CURTO_RSP_ITEM_STR-APOVERS sy-vline 
WA_/SAPAPO/CURTO_RSP_ITEM_STR-LOCID sy-vline 
WA_/SAPAPO/CURTO_RSP_ITEM_STR-LOCNO sy-vline 
WA_/SAPAPO/CURTO_RSP_ITEM_STR-SELLOC sy-vline 
WA_/SAPAPO/CURTO_RSP_ITEM_STR-SELVERS sy-vline 
WA_/SAPAPO/CURTO_RSP_ITEM_STR-SINGLEFLAG sy-vline 
WA_/SAPAPO/CURTO_RSP_ITEM_STR-CONJUNCTIONS sy-vline      INTO ld_text SEPARATED BY SPACE.

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