ABAP Select data from SAP table /SDF/E2E_ENQUEUE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SDF/E2E_ENQUEUE 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 /SDF/E2E_ENQUEUE. 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 /SDF/E2E_ENQUEUE 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_/SDF/E2E_ENQUEUE TYPE STANDARD TABLE OF /SDF/E2E_ENQUEUE,
      WA_/SDF/E2E_ENQUEUE TYPE /SDF/E2E_ENQUEUE,
      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: </SDF/E2E_ENQUEUE> TYPE /SDF/E2E_ENQUEUE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SDF/E2E_ENQUEUE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SDF/E2E_ENQUEUE
  INTO TABLE IT_/SDF/E2E_ENQUEUE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SDF/E2E_ENQUEUE
*  INTO TABLE @DATA(IT_/SDF/E2E_ENQUEUE2).
*--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_/SDF/E2E_ENQUEUE INDEX 1 INTO DATA(WA_/SDF/E2E_ENQUEUE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SDF/E2E_ENQUEUE ASSIGNING </SDF/E2E_ENQUEUE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SDF/E2E_ENQUEUE>-GNAME = 1.
</SDF/E2E_ENQUEUE>-GARG = 1.
</SDF/E2E_ENQUEUE>-GMODE = 1.
</SDF/E2E_ENQUEUE>-GUSR = 1.
</SDF/E2E_ENQUEUE>-GUSRVB = 1.

ENDLOOP.

LOOP AT IT_/SDF/E2E_ENQUEUE INTO WA_/SDF/E2E_ENQUEUE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SDF/E2E_ENQUEUE-GUSE, sy-vline,
  WA_/SDF/E2E_ENQUEUE-GUSEVB, sy-vline,
  WA_/SDF/E2E_ENQUEUE-GOBJ, sy-vline,
  WA_/SDF/E2E_ENQUEUE-GCLIENT, sy-vline,
  WA_/SDF/E2E_ENQUEUE-GUNAME, sy-vline,
  WA_/SDF/E2E_ENQUEUE-GTARG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SDF/E2E_ENQUEUE 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_/SDF/E2E_ENQUEUE 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_/SDF/E2E_ENQUEUE INTO WA_/SDF/E2E_ENQUEUE.


*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_/SDF/E2E_ENQUEUE_STR, 
GNAME TYPE STRING,
GARG TYPE STRING,
GMODE TYPE STRING,
GUSR TYPE STRING,
GUSRVB TYPE STRING,
GUSE TYPE STRING,
GUSEVB TYPE STRING,
GOBJ TYPE STRING,
GCLIENT TYPE STRING,
GUNAME TYPE STRING,
GTARG TYPE STRING,
GTCODE TYPE STRING,
GBCKTYPE TYPE STRING,
GTHOST TYPE STRING,
GTWP TYPE STRING,
GTSYSNR TYPE STRING,
GTDATE TYPE STRING,
GTTIME TYPE STRING,
GTUSEC TYPE STRING,
GTMARK TYPE STRING,
GUSETXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SDF/E2E_ENQUEUE_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_/SDF/E2E_ENQUEUE_STR-GNAME sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GARG sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GMODE sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GUSR sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GUSRVB sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GUSE sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GUSEVB sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GOBJ sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GCLIENT sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GUNAME sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GTARG sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GTCODE sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GBCKTYPE sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GTHOST sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GTWP sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GTSYSNR sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GTDATE sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GTTIME sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GTUSEC sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GTMARK sy-vline 
WA_/SDF/E2E_ENQUEUE_STR-GUSETXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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