ABAP Select data from SAP table P10P_STREE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P10P_STREE 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 P10P_STREE. 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 P10P_STREE 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_P10P_STREE TYPE STANDARD TABLE OF P10P_STREE,
      WA_P10P_STREE TYPE P10P_STREE,
      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: <P10P_STREE> TYPE P10P_STREE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P10P_STREE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P10P_STREE
  INTO TABLE IT_P10P_STREE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P10P_STREE
*  INTO TABLE @DATA(IT_P10P_STREE2).
*--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_P10P_STREE INDEX 1 INTO DATA(WA_P10P_STREE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P10P_STREE ASSIGNING <P10P_STREE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P10P_STREE>-PERNR = 1.
<P10P_STREE>-ENAME = 1.
<P10P_STREE>-STTUS = 1.
<P10P_STREE>-SUBTY = 1.
<P10P_STREE>-CTNUM = 1.

ENDLOOP.

LOOP AT IT_P10P_STREE INTO WA_P10P_STREE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P10P_STREE-CTTYP, sy-vline,
  WA_P10P_STREE-CTTXT, sy-vline,
  WA_P10P_STREE-IFBEG, sy-vline,
  WA_P10P_STREE-IFEND, sy-vline,
  WA_P10P_STREE-CTBEG, sy-vline,
  WA_P10P_STREE-CTEND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P10P_STREE 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_P10P_STREE 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_P10P_STREE INTO WA_P10P_STREE.


*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_P10P_STREE_STR, 
PERNR TYPE STRING,
ENAME TYPE STRING,
STTUS TYPE STRING,
SUBTY TYPE STRING,
CTNUM TYPE STRING,
CTTYP TYPE STRING,
CTTXT TYPE STRING,
IFBEG TYPE STRING,
IFEND TYPE STRING,
CTBEG TYPE STRING,
CTEND TYPE STRING,
SCODE TYPE STRING,
CLASS TYPE STRING,
CLTXT TYPE STRING,
SUBJT TYPE STRING,
SJTXT TYPE STRING,
SUBLV TYPE STRING,
LVTXT TYPE STRING,
OBJID TYPE STRING,
QLTXT TYPE STRING,
QGROU TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P10P_STREE_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_P10P_STREE_STR-PERNR sy-vline 
WA_P10P_STREE_STR-ENAME sy-vline 
WA_P10P_STREE_STR-STTUS sy-vline 
WA_P10P_STREE_STR-SUBTY sy-vline 
WA_P10P_STREE_STR-CTNUM sy-vline 
WA_P10P_STREE_STR-CTTYP sy-vline 
WA_P10P_STREE_STR-CTTXT sy-vline 
WA_P10P_STREE_STR-IFBEG sy-vline 
WA_P10P_STREE_STR-IFEND sy-vline 
WA_P10P_STREE_STR-CTBEG sy-vline 
WA_P10P_STREE_STR-CTEND sy-vline 
WA_P10P_STREE_STR-SCODE sy-vline 
WA_P10P_STREE_STR-CLASS sy-vline 
WA_P10P_STREE_STR-CLTXT sy-vline 
WA_P10P_STREE_STR-SUBJT sy-vline 
WA_P10P_STREE_STR-SJTXT sy-vline 
WA_P10P_STREE_STR-SUBLV sy-vline 
WA_P10P_STREE_STR-LVTXT sy-vline 
WA_P10P_STREE_STR-OBJID sy-vline 
WA_P10P_STREE_STR-QLTXT sy-vline 
WA_P10P_STREE_STR-QGROU sy-vline 
WA_P10P_STREE_STR-BEGDA sy-vline 
WA_P10P_STREE_STR-ENDDA sy-vline      INTO ld_text SEPARATED BY SPACE.

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