ABAP Select data from SAP table ESH_S_CO_ASSIST_DEST_WS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESH_S_CO_ASSIST_DEST_WS
*  INTO TABLE @DATA(IT_ESH_S_CO_ASSIST_DEST_WS2).
*--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_ESH_S_CO_ASSIST_DEST_WS INDEX 1 INTO DATA(WA_ESH_S_CO_ASSIST_DEST_WS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESH_S_CO_ASSIST_DEST_WS>-CONTROL = 1.
<ESH_S_CO_ASSIST_DEST_WS>-REMOVE_LOGPORT_ENABLED = 1.
<ESH_S_CO_ASSIST_DEST_WS>-ADD_LOGPORT_ENABLED = 1.
<ESH_S_CO_ASSIST_DEST_WS>-USER_VISIBLE = 1.
<ESH_S_CO_ASSIST_DEST_WS>-USER_READONLY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESH_S_CO_ASSIST_DEST_WS-DISPLAY_MODE, sy-vline,
  WA_ESH_S_CO_ASSIST_DEST_WS-DEST_DETAILS_VISIBLE, sy-vline,
  WA_ESH_S_CO_ASSIST_DEST_WS-TABLE_SEL_MODE, sy-vline,
  WA_ESH_S_CO_ASSIST_DEST_WS-CON_STATUS_VISIBLE, sy-vline,
  WA_ESH_S_CO_ASSIST_DEST_WS-SELECT_BUTTON_VISIBLE, sy-vline,
  WA_ESH_S_CO_ASSIST_DEST_WS-DESTINATION_VISIBLE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESH_S_CO_ASSIST_DEST_WS 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_ESH_S_CO_ASSIST_DEST_WS 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_ESH_S_CO_ASSIST_DEST_WS INTO WA_ESH_S_CO_ASSIST_DEST_WS.


*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_ESH_S_CO_ASSIST_DEST_WS_STR, 
CONTROL TYPE STRING,
REMOVE_LOGPORT_ENABLED TYPE STRING,
ADD_LOGPORT_ENABLED TYPE STRING,
USER_VISIBLE TYPE STRING,
USER_READONLY TYPE STRING,
DISPLAY_MODE TYPE STRING,
DEST_DETAILS_VISIBLE TYPE STRING,
TABLE_SEL_MODE TYPE STRING,
CON_STATUS_VISIBLE TYPE STRING,
SELECT_BUTTON_VISIBLE TYPE STRING,
DESTINATION_VISIBLE TYPE STRING,
TEXT TYPE STRING,
TITLE TYPE STRING,
EXPL TYPE STRING,
EXPL_SEL_MODE TYPE STRING,
DEST_TAB_TITLE TYPE STRING,
DEST_TAB_EXPL TYPE STRING,
TAB_LOGICAL_PORT TYPE STRING,
TAB_HOST TYPE STRING,
TAB_PORT TYPE STRING,
TAB_PROTOCOL TYPE STRING,
TAB_WS_SUBTYPE TYPE STRING,
GROUP_TITLE_DEST TYPE STRING,
GROUP_TITLE_AUTH TYPE STRING,
PATH TYPE STRING,
USER TYPE STRING,
PASSWORD TYPE STRING,
DESTINATION TYPE STRING,
BUTTON_ADD_LOGPORT TYPE STRING,
BUTTON_REMOVE_LOGPORT TYPE STRING,
BUTTON_SELECT TYPE STRING,
BUTTON_CANCEL TYPE STRING,
CONNECTOR_STATUS TYPE STRING,
CONNECTOR_STATUS_TT TYPE STRING,
LP_INFO TYPE STRING,
DESTINATION_INFO TYPE STRING,
SEL_DEST_WS TYPE STRING,
SEL_DEST_DETAIL TYPE STRING,
CO_TYPE TYPE STRING,
CONNECTION_GUID TYPE STRING,
HOST TYPE STRING,
PORT TYPE STRING,
PROTOCOL TYPE STRING,
PATH TYPE STRING,
LOGICAL_PORT_NAME TYPE STRING,
AUTHENTICATION TYPE STRING,
USERNAME TYPE STRING,
PASSWORD TYPE STRING,
WS_SUBTYPE TYPE STRING,
DESTINATION TYPE STRING,
DEST_STATUS TYPE STRING,
LOGICAL_PORT_READONLY TYPE STRING,
PRODVERS TYPE STRING,
CONNECTOR_STATUS TYPE STRING,
LOGICAL_PORT_SELECTABLE TYPE STRING,
UPDATE_FLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESH_S_CO_ASSIST_DEST_WS_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_ESH_S_CO_ASSIST_DEST_WS_STR-CONTROL sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-REMOVE_LOGPORT_ENABLED sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-ADD_LOGPORT_ENABLED sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-USER_VISIBLE sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-USER_READONLY sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-DISPLAY_MODE sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-DEST_DETAILS_VISIBLE sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-TABLE_SEL_MODE sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-CON_STATUS_VISIBLE sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-SELECT_BUTTON_VISIBLE sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-DESTINATION_VISIBLE sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-TEXT sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-TITLE sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-EXPL sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-EXPL_SEL_MODE sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-DEST_TAB_TITLE sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-DEST_TAB_EXPL sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-TAB_LOGICAL_PORT sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-TAB_HOST sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-TAB_PORT sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-TAB_PROTOCOL sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-TAB_WS_SUBTYPE sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-GROUP_TITLE_DEST sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-GROUP_TITLE_AUTH sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-PATH sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-USER sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-PASSWORD sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-DESTINATION sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-BUTTON_ADD_LOGPORT sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-BUTTON_REMOVE_LOGPORT sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-BUTTON_SELECT sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-BUTTON_CANCEL sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-CONNECTOR_STATUS sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-CONNECTOR_STATUS_TT sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-LP_INFO sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-DESTINATION_INFO sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-SEL_DEST_WS sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-SEL_DEST_DETAIL sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-CO_TYPE sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-CONNECTION_GUID sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-HOST sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-PORT sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-PROTOCOL sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-PATH sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-LOGICAL_PORT_NAME sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-AUTHENTICATION sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-USERNAME sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-PASSWORD sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-WS_SUBTYPE sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-DESTINATION sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-DEST_STATUS sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-LOGICAL_PORT_READONLY sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-PRODVERS sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-CONNECTOR_STATUS sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-LOGICAL_PORT_SELECTABLE sy-vline 
WA_ESH_S_CO_ASSIST_DEST_WS_STR-UPDATE_FLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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