ABAP Select data from SAP table EDOCL_DIRLIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EDOCL_DIRLIST
*  INTO TABLE @DATA(IT_EDOCL_DIRLIST2).
*--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_EDOCL_DIRLIST INDEX 1 INTO DATA(WA_EDOCL_DIRLIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EDOCL_DIRLIST>-DIRNAME = 1.
<EDOCL_DIRLIST>-NAME = 1.
<EDOCL_DIRLIST>-TYPE = 1.
<EDOCL_DIRLIST>-LEN = 1.
<EDOCL_DIRLIST>-OWNER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EDOCL_DIRLIST-MTIME, sy-vline,
  WA_EDOCL_DIRLIST-FMODE, sy-vline,
  WA_EDOCL_DIRLIST-USEABLE, sy-vline,
  WA_EDOCL_DIRLIST-SUBRC, sy-vline,
  WA_EDOCL_DIRLIST-ERRNO, sy-vline,
  WA_EDOCL_DIRLIST-ERRMSG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EDOCL_DIRLIST 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_EDOCL_DIRLIST 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_EDOCL_DIRLIST INTO WA_EDOCL_DIRLIST.


*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_EDOCL_DIRLIST_STR, 
DIRNAME TYPE STRING,
NAME TYPE STRING,
TYPE TYPE STRING,
LEN TYPE STRING,
OWNER TYPE STRING,
MTIME TYPE STRING,
FMODE TYPE STRING,
USEABLE TYPE STRING,
SUBRC TYPE STRING,
ERRNO TYPE STRING,
ERRMSG TYPE STRING,
MOD_DATE TYPE STRING,
MOD_TIME TYPE STRING,
SEEN TYPE STRING,
CHANGED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EDOCL_DIRLIST_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_EDOCL_DIRLIST_STR-DIRNAME sy-vline 
WA_EDOCL_DIRLIST_STR-NAME sy-vline 
WA_EDOCL_DIRLIST_STR-TYPE sy-vline 
WA_EDOCL_DIRLIST_STR-LEN sy-vline 
WA_EDOCL_DIRLIST_STR-OWNER sy-vline 
WA_EDOCL_DIRLIST_STR-MTIME sy-vline 
WA_EDOCL_DIRLIST_STR-FMODE sy-vline 
WA_EDOCL_DIRLIST_STR-USEABLE sy-vline 
WA_EDOCL_DIRLIST_STR-SUBRC sy-vline 
WA_EDOCL_DIRLIST_STR-ERRNO sy-vline 
WA_EDOCL_DIRLIST_STR-ERRMSG sy-vline 
WA_EDOCL_DIRLIST_STR-MOD_DATE sy-vline 
WA_EDOCL_DIRLIST_STR-MOD_TIME sy-vline 
WA_EDOCL_DIRLIST_STR-SEEN sy-vline 
WA_EDOCL_DIRLIST_STR-CHANGED sy-vline      INTO ld_text SEPARATED BY SPACE.

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