ABAP Select data from SAP table PDS_RESULT_DISPLAY into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PDS_RESULT_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 PDS_RESULT_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 PDS_RESULT_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_PDS_RESULT_DISPLAY TYPE STANDARD TABLE OF PDS_RESULT_DISPLAY,
      WA_PDS_RESULT_DISPLAY TYPE PDS_RESULT_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: <PDS_RESULT_DISPLAY> TYPE PDS_RESULT_DISPLAY.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PDS_RESULT_DISPLAY
*  INTO TABLE @DATA(IT_PDS_RESULT_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_PDS_RESULT_DISPLAY INDEX 1 INTO DATA(WA_PDS_RESULT_DISPLAY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PDS_RESULT_DISPLAY>-DETAIL = 1.
<PDS_RESULT_DISPLAY>-NAME = 1.
<PDS_RESULT_DISPLAY>-MANDT = 1.
<PDS_RESULT_DISPLAY>-GUID = 1.
<PDS_RESULT_DISPLAY>-MATNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PDS_RESULT_DISPLAY-WERKS, sy-vline,
  WA_PDS_RESULT_DISPLAY-VERID, sy-vline,
  WA_PDS_RESULT_DISPLAY-PLAN_TYPE, sy-vline,
  WA_PDS_RESULT_DISPLAY-PDS_TYPE, sy-vline,
  WA_PDS_RESULT_DISPLAY-STLAN, sy-vline,
  WA_PDS_RESULT_DISPLAY-STLAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PDS_RESULT_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_PDS_RESULT_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_PDS_RESULT_DISPLAY INTO WA_PDS_RESULT_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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PDS_RESULT_DISPLAY-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PDS_RESULT_DISPLAY-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field STLAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PDS_RESULT_DISPLAY-STLAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PDS_RESULT_DISPLAY-STLAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ELIFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PDS_RESULT_DISPLAY-ELIFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PDS_RESULT_DISPLAY-ELIFN.
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_PDS_RESULT_DISPLAY_STR, 
DETAIL TYPE STRING,
NAME TYPE STRING,
MANDT TYPE STRING,
GUID TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
VERID TYPE STRING,
PLAN_TYPE TYPE STRING,
PDS_TYPE TYPE STRING,
STLAN TYPE STRING,
STLAL TYPE STRING,
ELIFN TYPE STRING,
CREATE_USER TYPE STRING,
CREATE_TIME TYPE STRING,
CHANGE_USER TYPE STRING,
CHANGE_TIME TYPE STRING,
COST_VAR_S TYPE STRING,
COST_FIX_S TYPE STRING,
COST_VAR_M TYPE STRING,
COST_FIX_M TYPE STRING,
PROC_PRIO TYPE STRING,
PDISC TYPE STRING,
COSTFKT TYPE STRING,
PDSRNDPR TYPE STRING,
PREQ_COVER_TYP TYPE STRING,
CHAR_REQ TYPE STRING,
KNOBJ TYPE STRING,
REL_PDS_NAME TYPE STRING,
PDS_REF TYPE STRING,
PDS_BUFFER_REF TYPE STRING,
CHG_FLAG TYPE STRING,
PROP_FLAG TYPE STRING,
CELLTAB TYPE STRING,
COLORTAB TYPE STRING,
CHG_ICON TYPE STRING,
TEXT1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PDS_RESULT_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_PDS_RESULT_DISPLAY_STR-DETAIL sy-vline 
WA_PDS_RESULT_DISPLAY_STR-NAME sy-vline 
WA_PDS_RESULT_DISPLAY_STR-MANDT sy-vline 
WA_PDS_RESULT_DISPLAY_STR-GUID sy-vline 
WA_PDS_RESULT_DISPLAY_STR-MATNR sy-vline 
WA_PDS_RESULT_DISPLAY_STR-WERKS sy-vline 
WA_PDS_RESULT_DISPLAY_STR-VERID sy-vline 
WA_PDS_RESULT_DISPLAY_STR-PLAN_TYPE sy-vline 
WA_PDS_RESULT_DISPLAY_STR-PDS_TYPE sy-vline 
WA_PDS_RESULT_DISPLAY_STR-STLAN sy-vline 
WA_PDS_RESULT_DISPLAY_STR-STLAL sy-vline 
WA_PDS_RESULT_DISPLAY_STR-ELIFN sy-vline 
WA_PDS_RESULT_DISPLAY_STR-CREATE_USER sy-vline 
WA_PDS_RESULT_DISPLAY_STR-CREATE_TIME sy-vline 
WA_PDS_RESULT_DISPLAY_STR-CHANGE_USER sy-vline 
WA_PDS_RESULT_DISPLAY_STR-CHANGE_TIME sy-vline 
WA_PDS_RESULT_DISPLAY_STR-COST_VAR_S sy-vline 
WA_PDS_RESULT_DISPLAY_STR-COST_FIX_S sy-vline 
WA_PDS_RESULT_DISPLAY_STR-COST_VAR_M sy-vline 
WA_PDS_RESULT_DISPLAY_STR-COST_FIX_M sy-vline 
WA_PDS_RESULT_DISPLAY_STR-PROC_PRIO sy-vline 
WA_PDS_RESULT_DISPLAY_STR-PDISC sy-vline 
WA_PDS_RESULT_DISPLAY_STR-COSTFKT sy-vline 
WA_PDS_RESULT_DISPLAY_STR-PDSRNDPR sy-vline 
WA_PDS_RESULT_DISPLAY_STR-PREQ_COVER_TYP sy-vline 
WA_PDS_RESULT_DISPLAY_STR-CHAR_REQ sy-vline 
WA_PDS_RESULT_DISPLAY_STR-KNOBJ sy-vline 
WA_PDS_RESULT_DISPLAY_STR-REL_PDS_NAME sy-vline 
WA_PDS_RESULT_DISPLAY_STR-PDS_REF sy-vline 
WA_PDS_RESULT_DISPLAY_STR-PDS_BUFFER_REF sy-vline 
WA_PDS_RESULT_DISPLAY_STR-CHG_FLAG sy-vline 
WA_PDS_RESULT_DISPLAY_STR-PROP_FLAG sy-vline 
WA_PDS_RESULT_DISPLAY_STR-CELLTAB sy-vline 
WA_PDS_RESULT_DISPLAY_STR-COLORTAB sy-vline 
WA_PDS_RESULT_DISPLAY_STR-CHG_ICON sy-vline 
WA_PDS_RESULT_DISPLAY_STR-TEXT1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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