ABAP Select data from SAP table MSSPFLIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MSSPFLIST
*  INTO TABLE @DATA(IT_MSSPFLIST2).
*--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_MSSPFLIST INDEX 1 INTO DATA(WA_MSSPFLIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MSSPFLIST>-EVENTNAME = 1.
<MSSPFLIST>-LINE = 1.
<MSSPFLIST>-EVENTCLASS = 1.
<MSSPFLIST>-STARTTIME = 1.
<MSSPFLIST>-DURATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MSSPFLIST-READS, sy-vline,
  WA_MSSPFLIST-WRITES, sy-vline,
  WA_MSSPFLIST-CPU, sy-vline,
  WA_MSSPFLIST-DATABASEID, sy-vline,
  WA_MSSPFLIST-SQLUSER, sy-vline,
  WA_MSSPFLIST-CONNECTID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MSSPFLIST 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_MSSPFLIST 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_MSSPFLIST INTO WA_MSSPFLIST.


*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_MSSPFLIST_STR, 
EVENTNAME TYPE STRING,
LINE TYPE STRING,
EVENTCLASS TYPE STRING,
STARTTIME TYPE STRING,
DURATION TYPE STRING,
READS TYPE STRING,
WRITES TYPE STRING,
CPU TYPE STRING,
DATABASEID TYPE STRING,
SQLUSER TYPE STRING,
CONNECTID TYPE STRING,
APPNAME TYPE STRING,
TEXTDATA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MSSPFLIST_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_MSSPFLIST_STR-EVENTNAME sy-vline 
WA_MSSPFLIST_STR-LINE sy-vline 
WA_MSSPFLIST_STR-EVENTCLASS sy-vline 
WA_MSSPFLIST_STR-STARTTIME sy-vline 
WA_MSSPFLIST_STR-DURATION sy-vline 
WA_MSSPFLIST_STR-READS sy-vline 
WA_MSSPFLIST_STR-WRITES sy-vline 
WA_MSSPFLIST_STR-CPU sy-vline 
WA_MSSPFLIST_STR-DATABASEID sy-vline 
WA_MSSPFLIST_STR-SQLUSER sy-vline 
WA_MSSPFLIST_STR-CONNECTID sy-vline 
WA_MSSPFLIST_STR-APPNAME sy-vline 
WA_MSSPFLIST_STR-TEXTDATA sy-vline      INTO ld_text SEPARATED BY SPACE.

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