ABAP Select data from SAP table ILM_S_JOBLOG_LIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ILM_S_JOBLOG_LIST
*  INTO TABLE @DATA(IT_ILM_S_JOBLOG_LIST2).
*--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_ILM_S_JOBLOG_LIST INDEX 1 INTO DATA(WA_ILM_S_JOBLOG_LIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ILM_S_JOBLOG_LIST>-ENTERTIME = 1.
<ILM_S_JOBLOG_LIST>-ENTERDATE = 1.
<ILM_S_JOBLOG_LIST>-MSGID = 1.
<ILM_S_JOBLOG_LIST>-MSGNO = 1.
<ILM_S_JOBLOG_LIST>-MSGTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ILM_S_JOBLOG_LIST-TEXT, sy-vline,
  WA_ILM_S_JOBLOG_LIST-RABAXKEY, sy-vline,
  WA_ILM_S_JOBLOG_LIST-RABAXKEYLN, sy-vline,
  WA_ILM_S_JOBLOG_LIST-MSGV1, sy-vline,
  WA_ILM_S_JOBLOG_LIST-MSGV2, sy-vline,
  WA_ILM_S_JOBLOG_LIST-MSGV3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ILM_S_JOBLOG_LIST 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_ILM_S_JOBLOG_LIST 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_ILM_S_JOBLOG_LIST INTO WA_ILM_S_JOBLOG_LIST.


*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_ILM_S_JOBLOG_LIST_STR, 
ENTERTIME TYPE STRING,
ENTERDATE TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,
MSGTYPE TYPE STRING,
TEXT TYPE STRING,
RABAXKEY TYPE STRING,
RABAXKEYLN TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
PROGRAM TYPE STRING,
PFKEY TYPE STRING,
DYNPRO TYPE STRING,
MSGTYPE_IMG TYPE STRING,
LONGTXT_IMG TYPE STRING,
LONGTEXT_VISIBILITY TYPE STRING,
TOOLTIP_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ILM_S_JOBLOG_LIST_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_ILM_S_JOBLOG_LIST_STR-ENTERTIME sy-vline 
WA_ILM_S_JOBLOG_LIST_STR-ENTERDATE sy-vline 
WA_ILM_S_JOBLOG_LIST_STR-MSGID sy-vline 
WA_ILM_S_JOBLOG_LIST_STR-MSGNO sy-vline 
WA_ILM_S_JOBLOG_LIST_STR-MSGTYPE sy-vline 
WA_ILM_S_JOBLOG_LIST_STR-TEXT sy-vline 
WA_ILM_S_JOBLOG_LIST_STR-RABAXKEY sy-vline 
WA_ILM_S_JOBLOG_LIST_STR-RABAXKEYLN sy-vline 
WA_ILM_S_JOBLOG_LIST_STR-MSGV1 sy-vline 
WA_ILM_S_JOBLOG_LIST_STR-MSGV2 sy-vline 
WA_ILM_S_JOBLOG_LIST_STR-MSGV3 sy-vline 
WA_ILM_S_JOBLOG_LIST_STR-MSGV4 sy-vline 
WA_ILM_S_JOBLOG_LIST_STR-PROGRAM sy-vline 
WA_ILM_S_JOBLOG_LIST_STR-PFKEY sy-vline 
WA_ILM_S_JOBLOG_LIST_STR-DYNPRO sy-vline 
WA_ILM_S_JOBLOG_LIST_STR-MSGTYPE_IMG sy-vline 
WA_ILM_S_JOBLOG_LIST_STR-LONGTXT_IMG sy-vline 
WA_ILM_S_JOBLOG_LIST_STR-LONGTEXT_VISIBILITY sy-vline 
WA_ILM_S_JOBLOG_LIST_STR-TOOLTIP_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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