ABAP Select data from SAP table WFDSS_UI_DMD_SEARCH_PAR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WFDSS_UI_DMD_SEARCH_PAR
*  INTO TABLE @DATA(IT_WFDSS_UI_DMD_SEARCH_PAR2).
*--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_WFDSS_UI_DMD_SEARCH_PAR INDEX 1 INTO DATA(WA_WFDSS_UI_DMD_SEARCH_PAR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WFDSS_UI_DMD_SEARCH_PAR>-RESOURCE_GUID = 1.
<WFDSS_UI_DMD_SEARCH_PAR>-DEMAND_TYPE = 1.
<WFDSS_UI_DMD_SEARCH_PAR>-MAX_DISTANCE = 1.
<WFDSS_UI_DMD_SEARCH_PAR>-DIST_UNIT = 1.
<WFDSS_UI_DMD_SEARCH_PAR>-DISPLAY_DISTANCE_UNIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WFDSS_UI_DMD_SEARCH_PAR-BEG_TSTMP, sy-vline,
  WA_WFDSS_UI_DMD_SEARCH_PAR-END_TSTMP, sy-vline,
  WA_WFDSS_UI_DMD_SEARCH_PAR-QUICK_DATE, sy-vline,
  WA_WFDSS_UI_DMD_SEARCH_PAR-SHOW_CLOCKTIMES, sy-vline,
  WA_WFDSS_UI_DMD_SEARCH_PAR-SKILLS, sy-vline,
  WA_WFDSS_UI_DMD_SEARCH_PAR-ORG_UNITS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WFDSS_UI_DMD_SEARCH_PAR 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_WFDSS_UI_DMD_SEARCH_PAR 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_WFDSS_UI_DMD_SEARCH_PAR INTO WA_WFDSS_UI_DMD_SEARCH_PAR.


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

*Conversion exit CUNIT, internal->external for field DISPLAY_DISTANCE_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WFDSS_UI_DMD_SEARCH_PAR-DISPLAY_DISTANCE_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WFDSS_UI_DMD_SEARCH_PAR-DISPLAY_DISTANCE_UNIT.
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_WFDSS_UI_DMD_SEARCH_PAR_STR, 
RESOURCE_GUID TYPE STRING,
DEMAND_TYPE TYPE STRING,
MAX_DISTANCE TYPE STRING,
DIST_UNIT TYPE STRING,
DISPLAY_DISTANCE_UNIT TYPE STRING,
BEG_TSTMP TYPE STRING,
END_TSTMP TYPE STRING,
QUICK_DATE TYPE STRING,
SHOW_CLOCKTIMES TYPE STRING,
SKILLS TYPE STRING,
ORG_UNITS TYPE STRING,
CUSTOMERS TYPE STRING,
PROJECT_ROLE_TYPES TYPE STRING,
ASSIGNMENT_STATES TYPE STRING,
PROJECT_IDS TYPE STRING,
PROJECT_ROLE_ID TYPE STRING,
COST_IDS TYPE STRING,
PROJECT_LOCATIONS TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
POST_CODE TYPE STRING,
CITY TYPE STRING,
STREET TYPE STRING,
HOUSE_NUMBER TYPE STRING,
ITEM_NUMBER TYPE STRING,
CANCEL_STATUS TYPE STRING,
LC_STATUS TYPE STRING,
ORDER_IDS TYPE STRING,
ORDER_TYPES TYPE STRING,
ITEM_CATS TYPE STRING,
IOBJECT_IDS TYPE STRING,
IBASE_IDS TYPE STRING,
IBASE_COMP_IDS TYPE STRING,
SRV_PRODUCTS TYPE STRING,
PRIORITIES TYPE STRING,
SERV_AREAS TYPE STRING,
CLASSIC_PR_VARIANT TYPE STRING,
EA_DUMMY TYPE STRING,
RES_HEADER_FLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WFDSS_UI_DMD_SEARCH_PAR_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_WFDSS_UI_DMD_SEARCH_PAR_STR-RESOURCE_GUID sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-DEMAND_TYPE sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-MAX_DISTANCE sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-DIST_UNIT sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-DISPLAY_DISTANCE_UNIT sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-BEG_TSTMP sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-END_TSTMP sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-QUICK_DATE sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-SHOW_CLOCKTIMES sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-SKILLS sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-ORG_UNITS sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-CUSTOMERS sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-PROJECT_ROLE_TYPES sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-ASSIGNMENT_STATES sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-PROJECT_IDS sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-PROJECT_ROLE_ID sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-COST_IDS sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-PROJECT_LOCATIONS sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-COUNTRY sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-REGION sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-POST_CODE sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-CITY sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-STREET sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-HOUSE_NUMBER sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-ITEM_NUMBER sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-CANCEL_STATUS sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-LC_STATUS sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-ORDER_IDS sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-ORDER_TYPES sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-ITEM_CATS sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-IOBJECT_IDS sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-IBASE_IDS sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-IBASE_COMP_IDS sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-SRV_PRODUCTS sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-PRIORITIES sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-SERV_AREAS sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-CLASSIC_PR_VARIANT sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-EA_DUMMY sy-vline 
WA_WFDSS_UI_DMD_SEARCH_PAR_STR-RES_HEADER_FLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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