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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/STREEITEM
*  INTO TABLE @DATA(IT_/SAPAPO/STREEITEM2).
*--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/STREEITEM INDEX 1 INTO DATA(WA_/SAPAPO/STREEITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/STREEITEM>-BOBJ_TYPE = 1.
</SAPAPO/STREEITEM>-OBJID = 1.
</SAPAPO/STREEITEM>-LOCFR = 1.
</SAPAPO/STREEITEM>-LOCTO = 1.
</SAPAPO/STREEITEM>-MODEL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/STREEITEM-CRTYPE, sy-vline,
  WA_/SAPAPO/STREEITEM-DESCRS, sy-vline,
  WA_/SAPAPO/STREEITEM-DESCRL, sy-vline,
  WA_/SAPAPO/STREEITEM-DESCRS1, sy-vline,
  WA_/SAPAPO/STREEITEM-DESCRL1, sy-vline,
  WA_/SAPAPO/STREEITEM-DESCRS2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/STREEITEM 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/STREEITEM 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/STREEITEM INTO WA_/SAPAPO/STREEITEM.


*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_/SAPAPO/STREEITEM_STR, 
BOBJ_TYPE TYPE STRING,
OBJID TYPE STRING,
LOCFR TYPE STRING,
LOCTO TYPE STRING,
MODEL TYPE STRING,
CRTYPE TYPE STRING,
DESCRS TYPE STRING,
DESCRL TYPE STRING,
DESCRS1 TYPE STRING,
DESCRL1 TYPE STRING,
DESCRS2 TYPE STRING,
DESCRL2 TYPE STRING,
NUM1 TYPE STRING,
NUM2 TYPE STRING,
NUM3 TYPE STRING,
LVORM TYPE STRING,
XTREEITEMID TYPE STRING,
TREEID TYPE STRING,
TREELEVEL TYPE STRING,
SEQUENCE TYPE STRING,
PBOBJ_TYPE TYPE STRING,
POBJID TYPE STRING,
PLOCFR TYPE STRING,
PLOCTO TYPE STRING,
PMODEL TYPE STRING,
PARENTID TYPE STRING,
RBOBJ_TYPE TYPE STRING,
ROBJID TYPE STRING,
RLOCFR TYPE STRING,
RLOCTO TYPE STRING,
RMODEL TYPE STRING,
RXTREEITEMID TYPE STRING,
OBJTYPE TYPE STRING,
XTREETYPEID TYPE STRING,
NODISPLAY TYPE STRING,
EXPANDER TYPE STRING,
ICON_NOR TYPE STRING,
ICON_EXP TYPE STRING,
DDHANDLE TYPE STRING,
GENERICFLD TYPE STRING,
RELATSHIP TYPE STRING,
RELLEVID TYPE STRING,
RELLEVNO TYPE STRING,
RELLEVT TYPE STRING,
POS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/STREEITEM_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/STREEITEM_STR-BOBJ_TYPE sy-vline 
WA_/SAPAPO/STREEITEM_STR-OBJID sy-vline 
WA_/SAPAPO/STREEITEM_STR-LOCFR sy-vline 
WA_/SAPAPO/STREEITEM_STR-LOCTO sy-vline 
WA_/SAPAPO/STREEITEM_STR-MODEL sy-vline 
WA_/SAPAPO/STREEITEM_STR-CRTYPE sy-vline 
WA_/SAPAPO/STREEITEM_STR-DESCRS sy-vline 
WA_/SAPAPO/STREEITEM_STR-DESCRL sy-vline 
WA_/SAPAPO/STREEITEM_STR-DESCRS1 sy-vline 
WA_/SAPAPO/STREEITEM_STR-DESCRL1 sy-vline 
WA_/SAPAPO/STREEITEM_STR-DESCRS2 sy-vline 
WA_/SAPAPO/STREEITEM_STR-DESCRL2 sy-vline 
WA_/SAPAPO/STREEITEM_STR-NUM1 sy-vline 
WA_/SAPAPO/STREEITEM_STR-NUM2 sy-vline 
WA_/SAPAPO/STREEITEM_STR-NUM3 sy-vline 
WA_/SAPAPO/STREEITEM_STR-LVORM sy-vline 
WA_/SAPAPO/STREEITEM_STR-XTREEITEMID sy-vline 
WA_/SAPAPO/STREEITEM_STR-TREEID sy-vline 
WA_/SAPAPO/STREEITEM_STR-TREELEVEL sy-vline 
WA_/SAPAPO/STREEITEM_STR-SEQUENCE sy-vline 
WA_/SAPAPO/STREEITEM_STR-PBOBJ_TYPE sy-vline 
WA_/SAPAPO/STREEITEM_STR-POBJID sy-vline 
WA_/SAPAPO/STREEITEM_STR-PLOCFR sy-vline 
WA_/SAPAPO/STREEITEM_STR-PLOCTO sy-vline 
WA_/SAPAPO/STREEITEM_STR-PMODEL sy-vline 
WA_/SAPAPO/STREEITEM_STR-PARENTID sy-vline 
WA_/SAPAPO/STREEITEM_STR-RBOBJ_TYPE sy-vline 
WA_/SAPAPO/STREEITEM_STR-ROBJID sy-vline 
WA_/SAPAPO/STREEITEM_STR-RLOCFR sy-vline 
WA_/SAPAPO/STREEITEM_STR-RLOCTO sy-vline 
WA_/SAPAPO/STREEITEM_STR-RMODEL sy-vline 
WA_/SAPAPO/STREEITEM_STR-RXTREEITEMID sy-vline 
WA_/SAPAPO/STREEITEM_STR-OBJTYPE sy-vline 
WA_/SAPAPO/STREEITEM_STR-XTREETYPEID sy-vline 
WA_/SAPAPO/STREEITEM_STR-NODISPLAY sy-vline 
WA_/SAPAPO/STREEITEM_STR-EXPANDER sy-vline 
WA_/SAPAPO/STREEITEM_STR-ICON_NOR sy-vline 
WA_/SAPAPO/STREEITEM_STR-ICON_EXP sy-vline 
WA_/SAPAPO/STREEITEM_STR-DDHANDLE sy-vline 
WA_/SAPAPO/STREEITEM_STR-GENERICFLD sy-vline 
WA_/SAPAPO/STREEITEM_STR-RELATSHIP sy-vline 
WA_/SAPAPO/STREEITEM_STR-RELLEVID sy-vline 
WA_/SAPAPO/STREEITEM_STR-RELLEVNO sy-vline 
WA_/SAPAPO/STREEITEM_STR-RELLEVT sy-vline 
WA_/SAPAPO/STREEITEM_STR-POS sy-vline      INTO ld_text SEPARATED BY SPACE.

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