ABAP Select data from SAP table EIDESWTDOC_ALV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EIDESWTDOC_ALV 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_ALV. 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_ALV 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_ALV TYPE STANDARD TABLE OF EIDESWTDOC_ALV,
      WA_EIDESWTDOC_ALV TYPE EIDESWTDOC_ALV,
      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_ALV> TYPE EIDESWTDOC_ALV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EIDESWTDOC_ALV
*  INTO TABLE @DATA(IT_EIDESWTDOC_ALV2).
*--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_ALV INDEX 1 INTO DATA(WA_EIDESWTDOC_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EIDESWTDOC_ALV>-SWITCHNUM = 1.
<EIDESWTDOC_ALV>-EXT_UI = 1.
<EIDESWTDOC_ALV>-INT_UI = 1.
<EIDESWTDOC_ALV>-PARTNER = 1.
<EIDESWTDOC_ALV>-PARTNER_NAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EIDESWTDOC_ALV-MOVEINDATE, sy-vline,
  WA_EIDESWTDOC_ALV-MOVEOUTDATE, sy-vline,
  WA_EIDESWTDOC_ALV-STATUS, sy-vline,
  WA_EIDESWTDOC_ALV-STATUSTXT, sy-vline,
  WA_EIDESWTDOC_ALV-STATUSICON, sy-vline,
  WA_EIDESWTDOC_ALV-SWTVIEW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EIDESWTDOC_ALV 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_ALV 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_ALV INTO WA_EIDESWTDOC_ALV.


*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_ALV-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EIDESWTDOC_ALV-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_ALV_STR, 
SWITCHNUM TYPE STRING,
EXT_UI TYPE STRING,
INT_UI TYPE STRING,
PARTNER TYPE STRING,
PARTNER_NAME TYPE STRING,
MOVEINDATE TYPE STRING,
MOVEOUTDATE TYPE STRING,
STATUS TYPE STRING,
STATUSTXT TYPE STRING,
STATUSICON TYPE STRING,
SWTVIEW TYPE STRING,
SWTVIEWTXT TYPE STRING,
SWITCHTYPE TYPE STRING,
SWITCHTYPETXT TYPE STRING,
SERVICE_PROV_OLD TYPE STRING,
SERVICE_PROV_OLD_TXT TYPE STRING,
SERVICE_PROV_NEW TYPE STRING,
SERVICE_PROV_NEW_TXT TYPE STRING,
DISTRIBUTOR TYPE STRING,
DISTRIBUTOR_TXT TYPE STRING,
STARTSCENARIO TYPE STRING,
STARTSCENARIOTXT TYPE STRING,
TARGETSCENARIO TYPE STRING,
TARGETSCENARIOTXT TYPE STRING,
WORKFLOW TYPE STRING,
SPARTYP TYPE STRING,
SPARTYP_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EIDESWTDOC_ALV_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_ALV_STR-SWITCHNUM sy-vline 
WA_EIDESWTDOC_ALV_STR-EXT_UI sy-vline 
WA_EIDESWTDOC_ALV_STR-INT_UI sy-vline 
WA_EIDESWTDOC_ALV_STR-PARTNER sy-vline 
WA_EIDESWTDOC_ALV_STR-PARTNER_NAME sy-vline 
WA_EIDESWTDOC_ALV_STR-MOVEINDATE sy-vline 
WA_EIDESWTDOC_ALV_STR-MOVEOUTDATE sy-vline 
WA_EIDESWTDOC_ALV_STR-STATUS sy-vline 
WA_EIDESWTDOC_ALV_STR-STATUSTXT sy-vline 
WA_EIDESWTDOC_ALV_STR-STATUSICON sy-vline 
WA_EIDESWTDOC_ALV_STR-SWTVIEW sy-vline 
WA_EIDESWTDOC_ALV_STR-SWTVIEWTXT sy-vline 
WA_EIDESWTDOC_ALV_STR-SWITCHTYPE sy-vline 
WA_EIDESWTDOC_ALV_STR-SWITCHTYPETXT sy-vline 
WA_EIDESWTDOC_ALV_STR-SERVICE_PROV_OLD sy-vline 
WA_EIDESWTDOC_ALV_STR-SERVICE_PROV_OLD_TXT sy-vline 
WA_EIDESWTDOC_ALV_STR-SERVICE_PROV_NEW sy-vline 
WA_EIDESWTDOC_ALV_STR-SERVICE_PROV_NEW_TXT sy-vline 
WA_EIDESWTDOC_ALV_STR-DISTRIBUTOR sy-vline 
WA_EIDESWTDOC_ALV_STR-DISTRIBUTOR_TXT sy-vline 
WA_EIDESWTDOC_ALV_STR-STARTSCENARIO sy-vline 
WA_EIDESWTDOC_ALV_STR-STARTSCENARIOTXT sy-vline 
WA_EIDESWTDOC_ALV_STR-TARGETSCENARIO sy-vline 
WA_EIDESWTDOC_ALV_STR-TARGETSCENARIOTXT sy-vline 
WA_EIDESWTDOC_ALV_STR-WORKFLOW sy-vline 
WA_EIDESWTDOC_ALV_STR-SPARTYP sy-vline 
WA_EIDESWTDOC_ALV_STR-SPARTYP_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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