ABAP Select data from SAP table EIDESWTDOC_DISPLAY into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EIDESWTDOC_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 EIDESWTDOC_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 EIDESWTDOC_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_EIDESWTDOC_DISPLAY TYPE STANDARD TABLE OF EIDESWTDOC_DISPLAY,
      WA_EIDESWTDOC_DISPLAY TYPE EIDESWTDOC_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: <EIDESWTDOC_DISPLAY> TYPE EIDESWTDOC_DISPLAY.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EIDESWTDOC_DISPLAY
*  INTO TABLE @DATA(IT_EIDESWTDOC_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_EIDESWTDOC_DISPLAY INDEX 1 INTO DATA(WA_EIDESWTDOC_DISPLAY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EIDESWTDOC_DISPLAY>-SWITCHNUM = 1.
<EIDESWTDOC_DISPLAY>-POD_EXT = 1.
<EIDESWTDOC_DISPLAY>-SWITCHTYPE = 1.
<EIDESWTDOC_DISPLAY>-SWITCHTYPETXT = 1.
<EIDESWTDOC_DISPLAY>-OWNER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EIDESWTDOC_DISPLAY-OWNERNAME, sy-vline,
  WA_EIDESWTDOC_DISPLAY-SWTVIEW, sy-vline,
  WA_EIDESWTDOC_DISPLAY-SWTVIEWTXT, sy-vline,
  WA_EIDESWTDOC_DISPLAY-MOVEINDATE, sy-vline,
  WA_EIDESWTDOC_DISPLAY-MOVEOUTDATE, sy-vline,
  WA_EIDESWTDOC_DISPLAY-REALMOVEINDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EIDESWTDOC_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_EIDESWTDOC_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_EIDESWTDOC_DISPLAY INTO WA_EIDESWTDOC_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 ALPHA, internal->external for field PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EIDESWTDOC_DISPLAY-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EIDESWTDOC_DISPLAY-PARTNER.
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_EIDESWTDOC_DISPLAY_STR, 
SWITCHNUM TYPE STRING,
POD_EXT TYPE STRING,
SWITCHTYPE TYPE STRING,
SWITCHTYPETXT TYPE STRING,
OWNER TYPE STRING,
OWNERNAME TYPE STRING,
SWTVIEW TYPE STRING,
SWTVIEWTXT TYPE STRING,
MOVEINDATE TYPE STRING,
MOVEOUTDATE TYPE STRING,
REALMOVEINDATE TYPE STRING,
REALMOVEOUTDATE TYPE STRING,
PARTNER TYPE STRING,
PARTNERNAME TYPE STRING,
SERVICE_PROV_OLD TYPE STRING,
SERVPROVNAME_OLD TYPE STRING,
SERVICE_PROV_NEW TYPE STRING,
SERVPROVNAME_NEW TYPE STRING,
DISTRIBUTOR TYPE STRING,
DISTRIBUTORNAME TYPE STRING,
STARTSCENARIO TYPE STRING,
STARTSCENARIOTXT TYPE STRING,
TARGETSCENARIO TYPE STRING,
TARGETSCENARIOTXT TYPE STRING,
ENROLLDOC TYPE STRING,
DROPDOC TYPE STRING,
STATUS TYPE STRING,
STATUSTEXT TYPE STRING,
STATUSICON TYPE STRING,
STATUSDATE TYPE STRING,
STATUSTIMS TYPE STRING,
TIME_ZONE TYPE STRING,
TIME_ZONETXT TYPE STRING,
KEYDATE TYPE STRING,
SPARTYP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EIDESWTDOC_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_EIDESWTDOC_DISPLAY_STR-SWITCHNUM sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-POD_EXT sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-SWITCHTYPE sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-SWITCHTYPETXT sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-OWNER sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-OWNERNAME sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-SWTVIEW sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-SWTVIEWTXT sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-MOVEINDATE sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-MOVEOUTDATE sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-REALMOVEINDATE sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-REALMOVEOUTDATE sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-PARTNER sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-PARTNERNAME sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-SERVICE_PROV_OLD sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-SERVPROVNAME_OLD sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-SERVICE_PROV_NEW sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-SERVPROVNAME_NEW sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-DISTRIBUTOR sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-DISTRIBUTORNAME sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-STARTSCENARIO sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-STARTSCENARIOTXT sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-TARGETSCENARIO sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-TARGETSCENARIOTXT sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-ENROLLDOC sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-DROPDOC sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-STATUS sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-STATUSTEXT sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-STATUSICON sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-STATUSDATE sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-STATUSTIMS sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-TIME_ZONE sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-TIME_ZONETXT sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-KEYDATE sy-vline 
WA_EIDESWTDOC_DISPLAY_STR-SPARTYP sy-vline      INTO ld_text SEPARATED BY SPACE.

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