ABAP Select data from SAP table SPERFSTANO_SUM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SPERFSTANO_SUM
*  INTO TABLE @DATA(IT_SPERFSTANO_SUM2).
*--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_SPERFSTANO_SUM INDEX 1 INTO DATA(WA_SPERFSTANO_SUM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SPERFSTANO_SUM>-COMPONENT = 1.
<SPERFSTANO_SUM>-COMPTYPE = 1.
<SPERFSTANO_SUM>-TEXT = 1.
<SPERFSTANO_SUM>-LONGTEXT = 1.
<SPERFSTANO_SUM>-STEPCNT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SPERFSTANO_SUM-LUWCNT, sy-vline,
  WA_SPERFSTANO_SUM-RESPTI, sy-vline,
  WA_SPERFSTANO_SUM-CPUTI, sy-vline,
  WA_SPERFSTANO_SUM-QUEUETI, sy-vline,
  WA_SPERFSTANO_SUM-WAITTI, sy-vline,
  WA_SPERFSTANO_SUM-LOADTI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SPERFSTANO_SUM 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_SPERFSTANO_SUM 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_SPERFSTANO_SUM INTO WA_SPERFSTANO_SUM.


*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_SPERFSTANO_SUM_STR, 
COMPONENT TYPE STRING,
COMPTYPE TYPE STRING,
TEXT TYPE STRING,
LONGTEXT TYPE STRING,
STEPCNT TYPE STRING,
LUWCNT TYPE STRING,
RESPTI TYPE STRING,
CPUTI TYPE STRING,
QUEUETI TYPE STRING,
WAITTI TYPE STRING,
LOADTI TYPE STRING,
GENTI TYPE STRING,
NETTI TYPE STRING,
MAXMEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SPERFSTANO_SUM_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_SPERFSTANO_SUM_STR-COMPONENT sy-vline 
WA_SPERFSTANO_SUM_STR-COMPTYPE sy-vline 
WA_SPERFSTANO_SUM_STR-TEXT sy-vline 
WA_SPERFSTANO_SUM_STR-LONGTEXT sy-vline 
WA_SPERFSTANO_SUM_STR-STEPCNT sy-vline 
WA_SPERFSTANO_SUM_STR-LUWCNT sy-vline 
WA_SPERFSTANO_SUM_STR-RESPTI sy-vline 
WA_SPERFSTANO_SUM_STR-CPUTI sy-vline 
WA_SPERFSTANO_SUM_STR-QUEUETI sy-vline 
WA_SPERFSTANO_SUM_STR-WAITTI sy-vline 
WA_SPERFSTANO_SUM_STR-LOADTI sy-vline 
WA_SPERFSTANO_SUM_STR-GENTI sy-vline 
WA_SPERFSTANO_SUM_STR-NETTI sy-vline 
WA_SPERFSTANO_SUM_STR-MAXMEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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