ABAP Select data from SAP table SDME_SDPDA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SDME_SDPDA
*  INTO TABLE @DATA(IT_SDME_SDPDA2).
*--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_SDME_SDPDA INDEX 1 INTO DATA(WA_SDME_SDPDA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SDME_SDPDA>-DLGPOOL = 1.
<SDME_SDPDA>-DIALOGNAME = 1.
<SDME_SDPDA>-AREANAME = 1.
<SDME_SDPDA>-DPNAMEVIEW = 1.
<SDME_SDPDA>-VIEWNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SDME_SDPDA-DPNAMESEL, sy-vline,
  WA_SDME_SDPDA-SELCOND, sy-vline,
  WA_SDME_SDPDA-PARENTAREA, sy-vline,
  WA_SDME_SDPDA-RELATTR, sy-vline,
  WA_SDME_SDPDA-RELTYPE, sy-vline,
  WA_SDME_SDPDA-READONLY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SDME_SDPDA 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_SDME_SDPDA 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_SDME_SDPDA INTO WA_SDME_SDPDA.


*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 ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_SDME_SDPDA-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SDME_SDPDA-LANGU.
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_SDME_SDPDA_STR, 
DLGPOOL TYPE STRING,
DIALOGNAME TYPE STRING,
AREANAME TYPE STRING,
DPNAMEVIEW TYPE STRING,
VIEWNAME TYPE STRING,
DPNAMESEL TYPE STRING,
SELCOND TYPE STRING,
PARENTAREA TYPE STRING,
RELATTR TYPE STRING,
RELTYPE TYPE STRING,
READONLY TYPE STRING,
PRELOAD TYPE STRING,
EDITORDER TYPE STRING,
TITLEFRAME TYPE STRING,
OBJFRAME TYPE STRING,
OBJNAME TYPE STRING,
ATTRNAME TYPE STRING,
LANGU TYPE STRING,
TITLE TYPE STRING,
TITLE_FRM TYPE STRING,
OBJ_FRM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SDME_SDPDA_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_SDME_SDPDA_STR-DLGPOOL sy-vline 
WA_SDME_SDPDA_STR-DIALOGNAME sy-vline 
WA_SDME_SDPDA_STR-AREANAME sy-vline 
WA_SDME_SDPDA_STR-DPNAMEVIEW sy-vline 
WA_SDME_SDPDA_STR-VIEWNAME sy-vline 
WA_SDME_SDPDA_STR-DPNAMESEL sy-vline 
WA_SDME_SDPDA_STR-SELCOND sy-vline 
WA_SDME_SDPDA_STR-PARENTAREA sy-vline 
WA_SDME_SDPDA_STR-RELATTR sy-vline 
WA_SDME_SDPDA_STR-RELTYPE sy-vline 
WA_SDME_SDPDA_STR-READONLY sy-vline 
WA_SDME_SDPDA_STR-PRELOAD sy-vline 
WA_SDME_SDPDA_STR-EDITORDER sy-vline 
WA_SDME_SDPDA_STR-TITLEFRAME sy-vline 
WA_SDME_SDPDA_STR-OBJFRAME sy-vline 
WA_SDME_SDPDA_STR-OBJNAME sy-vline 
WA_SDME_SDPDA_STR-ATTRNAME sy-vline 
WA_SDME_SDPDA_STR-LANGU sy-vline 
WA_SDME_SDPDA_STR-TITLE sy-vline 
WA_SDME_SDPDA_STR-TITLE_FRM sy-vline 
WA_SDME_SDPDA_STR-OBJ_FRM sy-vline      INTO ld_text SEPARATED BY SPACE.

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