ABAP Select data from SAP table EHPRCS_PROPTREE_DISPLAY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHPRCS_PROPTREE_DISPLAY
*  INTO TABLE @DATA(IT_EHPRCS_PROPTREE_DISPLAY2).
*--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_EHPRCS_PROPTREE_DISPLAY INDEX 1 INTO DATA(WA_EHPRCS_PROPTREE_DISPLAY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHPRCS_PROPTREE_DISPLAY>-MENID = 1.
<EHPRCS_PROPTREE_DISPLAY>-ID = 1.
<EHPRCS_PROPTREE_DISPLAY>-ESTCAT = 1.
<EHPRCS_PROPTREE_DISPLAY>-ESTNAM = 1.
<EHPRCS_PROPTREE_DISPLAY>-CLINT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHPRCS_PROPTREE_DISPLAY-CLASS, sy-vline,
  WA_EHPRCS_PROPTREE_DISPLAY-TXTBZ, sy-vline,
  WA_EHPRCS_PROPTREE_DISPLAY-KSCHL, sy-vline,
  WA_EHPRCS_PROPTREE_DISPLAY-POSNR, sy-vline,
  WA_EHPRCS_PROPTREE_DISPLAY-ATINN, sy-vline,
  WA_EHPRCS_PROPTREE_DISPLAY-ATNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHPRCS_PROPTREE_DISPLAY 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_EHPRCS_PROPTREE_DISPLAY 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_EHPRCS_PROPTREE_DISPLAY INTO WA_EHPRCS_PROPTREE_DISPLAY.


*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 ATINN, internal->external for field ATINN
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_EHPRCS_PROPTREE_DISPLAY-ATINN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPRCS_PROPTREE_DISPLAY-ATINN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field C_MSEHI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EHPRCS_PROPTREE_DISPLAY-C_MSEHI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPRCS_PROPTREE_DISPLAY-C_MSEHI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field V_ATAWE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EHPRCS_PROPTREE_DISPLAY-V_ATAWE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPRCS_PROPTREE_DISPLAY-V_ATAWE.
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_EHPRCS_PROPTREE_DISPLAY_STR, 
MENID TYPE STRING,
ID TYPE STRING,
ESTCAT TYPE STRING,
ESTNAM TYPE STRING,
CLINT TYPE STRING,
CLASS TYPE STRING,
TXTBZ TYPE STRING,
KSCHL TYPE STRING,
POSNR TYPE STRING,
ATINN TYPE STRING,
ATNAM TYPE STRING,
C_ATFOR TYPE STRING,
C_ANZST TYPE STRING,
C_ANZDZ TYPE STRING,
C_ATVOR TYPE STRING,
C_ATKLE TYPE STRING,
C_ATEIN TYPE STRING,
C_MSEHI TYPE STRING,
C_ATINT TYPE STRING,
C_ATSON TYPE STRING,
C_ATPRT TYPE STRING,
C_ATPRF TYPE STRING,
ATBEZ TYPE STRING,
V_ATWRT TYPE STRING,
V_ATFLV TYPE STRING,
V_ATFLB TYPE STRING,
V_ATCOD TYPE STRING,
V_ATAWE TYPE STRING,
V_ATWTB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHPRCS_PROPTREE_DISPLAY_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_EHPRCS_PROPTREE_DISPLAY_STR-MENID sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-ID sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-ESTCAT sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-ESTNAM sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-CLINT sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-CLASS sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-TXTBZ sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-KSCHL sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-POSNR sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-ATINN sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-ATNAM sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-C_ATFOR sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-C_ANZST sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-C_ANZDZ sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-C_ATVOR sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-C_ATKLE sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-C_ATEIN sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-C_MSEHI sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-C_ATINT sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-C_ATSON sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-C_ATPRT sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-C_ATPRF sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-ATBEZ sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-V_ATWRT sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-V_ATFLV sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-V_ATFLB sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-V_ATCOD sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-V_ATAWE sy-vline 
WA_EHPRCS_PROPTREE_DISPLAY_STR-V_ATWTB sy-vline      INTO ld_text SEPARATED BY SPACE.

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