ABAP Select data from SAP table /ISDFPS/E1DIACL_LOG_ENTRY into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ISDFPS/E1DIACL_LOG_ENTRY 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 /ISDFPS/E1DIACL_LOG_ENTRY. 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 /ISDFPS/E1DIACL_LOG_ENTRY 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_/ISDFPS/E1DIACL_LOG_ENTRY TYPE STANDARD TABLE OF /ISDFPS/E1DIACL_LOG_ENTRY,
      WA_/ISDFPS/E1DIACL_LOG_ENTRY TYPE /ISDFPS/E1DIACL_LOG_ENTRY,
      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: </ISDFPS/E1DIACL_LOG_ENTRY> TYPE /ISDFPS/E1DIACL_LOG_ENTRY.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/ISDFPS/E1DIACL_LOG_ENTRY.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ISDFPS/E1DIACL_LOG_ENTRY
  INTO TABLE IT_/ISDFPS/E1DIACL_LOG_ENTRY.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ISDFPS/E1DIACL_LOG_ENTRY
*  INTO TABLE @DATA(IT_/ISDFPS/E1DIACL_LOG_ENTRY2).
*--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_/ISDFPS/E1DIACL_LOG_ENTRY INDEX 1 INTO DATA(WA_/ISDFPS/E1DIACL_LOG_ENTRY2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ISDFPS/E1DIACL_LOG_ENTRY ASSIGNING </ISDFPS/E1DIACL_LOG_ENTRY>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ISDFPS/E1DIACL_LOG_ENTRY>-MANDT = 1.
</ISDFPS/E1DIACL_LOG_ENTRY>-LOGID = 1.
</ISDFPS/E1DIACL_LOG_ENTRY>-STXT = 1.
</ISDFPS/E1DIACL_LOG_ENTRY>-COCE = 1.
</ISDFPS/E1DIACL_LOG_ENTRY>-MDOCM_OPTIME = 1.

ENDLOOP.

LOOP AT IT_/ISDFPS/E1DIACL_LOG_ENTRY INTO WA_/ISDFPS/E1DIACL_LOG_ENTRY.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ISDFPS/E1DIACL_LOG_ENTRY-MDOCM_CYCLES, sy-vline,
  WA_/ISDFPS/E1DIACL_LOG_ENTRY-STARTTM, sy-vline,
  WA_/ISDFPS/E1DIACL_LOG_ENTRY-ENDTM, sy-vline,
  WA_/ISDFPS/E1DIACL_LOG_ENTRY-STARTDT, sy-vline,
  WA_/ISDFPS/E1DIACL_LOG_ENTRY-ENDDT, sy-vline,
  WA_/ISDFPS/E1DIACL_LOG_ENTRY-STARTTZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ISDFPS/E1DIACL_LOG_ENTRY 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_/ISDFPS/E1DIACL_LOG_ENTRY 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_/ISDFPS/E1DIACL_LOG_ENTRY INTO WA_/ISDFPS/E1DIACL_LOG_ENTRY.


*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_/ISDFPS/E1DIACL_LOG_ENTRY_STR, 
MANDT TYPE STRING,
LOGID TYPE STRING,
STXT TYPE STRING,
COCE TYPE STRING,
MDOCM_OPTIME TYPE STRING,
MDOCM_CYCLES TYPE STRING,
STARTTM TYPE STRING,
ENDTM TYPE STRING,
STARTDT TYPE STRING,
ENDDT TYPE STRING,
STARTTZ TYPE STRING,
ENDTZ TYPE STRING,
CYCLES TYPE STRING,
LETYP TYPE STRING,
OBJNR TYPE STRING,
FLID TYPE STRING,
FREE_TEXT TYPE STRING,
UTYPE TYPE STRING,
VBKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ISDFPS/E1DIACL_LOG_ENTRY_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_/ISDFPS/E1DIACL_LOG_ENTRY_STR-MANDT sy-vline 
WA_/ISDFPS/E1DIACL_LOG_ENTRY_STR-LOGID sy-vline 
WA_/ISDFPS/E1DIACL_LOG_ENTRY_STR-STXT sy-vline 
WA_/ISDFPS/E1DIACL_LOG_ENTRY_STR-COCE sy-vline 
WA_/ISDFPS/E1DIACL_LOG_ENTRY_STR-MDOCM_OPTIME sy-vline 
WA_/ISDFPS/E1DIACL_LOG_ENTRY_STR-MDOCM_CYCLES sy-vline 
WA_/ISDFPS/E1DIACL_LOG_ENTRY_STR-STARTTM sy-vline 
WA_/ISDFPS/E1DIACL_LOG_ENTRY_STR-ENDTM sy-vline 
WA_/ISDFPS/E1DIACL_LOG_ENTRY_STR-STARTDT sy-vline 
WA_/ISDFPS/E1DIACL_LOG_ENTRY_STR-ENDDT sy-vline 
WA_/ISDFPS/E1DIACL_LOG_ENTRY_STR-STARTTZ sy-vline 
WA_/ISDFPS/E1DIACL_LOG_ENTRY_STR-ENDTZ sy-vline 
WA_/ISDFPS/E1DIACL_LOG_ENTRY_STR-CYCLES sy-vline 
WA_/ISDFPS/E1DIACL_LOG_ENTRY_STR-LETYP sy-vline 
WA_/ISDFPS/E1DIACL_LOG_ENTRY_STR-OBJNR sy-vline 
WA_/ISDFPS/E1DIACL_LOG_ENTRY_STR-FLID sy-vline 
WA_/ISDFPS/E1DIACL_LOG_ENTRY_STR-FREE_TEXT sy-vline 
WA_/ISDFPS/E1DIACL_LOG_ENTRY_STR-UTYPE sy-vline 
WA_/ISDFPS/E1DIACL_LOG_ENTRY_STR-VBKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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