ABAP Select data from SAP table SYB_SYSTABSTATS into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SYB_SYSTABSTATS
*  INTO TABLE @DATA(IT_SYB_SYSTABSTATS2).
*--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_SYB_SYSTABSTATS INDEX 1 INTO DATA(WA_SYB_SYSTABSTATS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SYB_SYSTABSTATS>-INDID = 1.
<SYB_SYSTABSTATS>-INDEXHEIGHT = 1.
<SYB_SYSTABSTATS>-CONOPT_THLD = 1.
<SYB_SYSTABSTATS>-PLLDEGREE = 1.
<SYB_SYSTABSTATS>-ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SYB_SYSTABSTATS-LEAFCNT, sy-vline,
  WA_SYB_SYSTABSTATS-PAGECNT, sy-vline,
  WA_SYB_SYSTABSTATS-OAMAPGCNT, sy-vline,
  WA_SYB_SYSTABSTATS-EXTENT0PGCNT, sy-vline,
  WA_SYB_SYSTABSTATS-PLLJOINDEGREE, sy-vline,
  WA_SYB_SYSTABSTATS-RSLASTOAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SYB_SYSTABSTATS 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_SYB_SYSTABSTATS 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_SYB_SYSTABSTATS INTO WA_SYB_SYSTABSTATS.


*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_SYB_SYSTABSTATS_STR, 
INDID TYPE STRING,
INDEXHEIGHT TYPE STRING,
CONOPT_THLD TYPE STRING,
PLLDEGREE TYPE STRING,
ID TYPE STRING,
LEAFCNT TYPE STRING,
PAGECNT TYPE STRING,
OAMAPGCNT TYPE STRING,
EXTENT0PGCNT TYPE STRING,
PLLJOINDEGREE TYPE STRING,
RSLASTOAM TYPE STRING,
RSLASTPAGE TYPE STRING,
FRLASTOAM TYPE STRING,
FRLASTPAGE TYPE STRING,
EMPTYPGCNT TYPE STRING,
PARTITIONID TYPE STRING,
WARMCACHEPGCNT TYPE STRING,
UNUSEDPGCNT TYPE STRING,
OAMPAGECNT TYPE STRING,
ROWCNT TYPE STRING,
FORWROWCNT TYPE STRING,
DELROWCNT TYPE STRING,
DPAGECRCNT TYPE STRING,
IPAGECRCNT TYPE STRING,
DROWCRCNT TYPE STRING,
DATAROWSIZE TYPE STRING,
LEAFROWSIZE TYPE STRING,
STATMODDATE TYPE STRING,
PIOCLMDATA TYPE STRING,
PIOCLMINDEX TYPE STRING,
PIOCSMDATA TYPE STRING,
PIOCSMINDEX TYPE STRING,
PAGECLRATIO TYPE STRING,
IPAGECLRATIO TYPE STRING,
ROWCLRATIO TYPE STRING,
LARGEIOEFF TYPE STRING,
DATACHANGE TYPE STRING,
SPACE_UTL_PCT TYPE STRING,
SPACE_UTL_KB TYPE STRING,
TAB_USED_KB TYPE STRING,
TAB_RESERVED_KB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SYB_SYSTABSTATS_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_SYB_SYSTABSTATS_STR-INDID sy-vline 
WA_SYB_SYSTABSTATS_STR-INDEXHEIGHT sy-vline 
WA_SYB_SYSTABSTATS_STR-CONOPT_THLD sy-vline 
WA_SYB_SYSTABSTATS_STR-PLLDEGREE sy-vline 
WA_SYB_SYSTABSTATS_STR-ID sy-vline 
WA_SYB_SYSTABSTATS_STR-LEAFCNT sy-vline 
WA_SYB_SYSTABSTATS_STR-PAGECNT sy-vline 
WA_SYB_SYSTABSTATS_STR-OAMAPGCNT sy-vline 
WA_SYB_SYSTABSTATS_STR-EXTENT0PGCNT sy-vline 
WA_SYB_SYSTABSTATS_STR-PLLJOINDEGREE sy-vline 
WA_SYB_SYSTABSTATS_STR-RSLASTOAM sy-vline 
WA_SYB_SYSTABSTATS_STR-RSLASTPAGE sy-vline 
WA_SYB_SYSTABSTATS_STR-FRLASTOAM sy-vline 
WA_SYB_SYSTABSTATS_STR-FRLASTPAGE sy-vline 
WA_SYB_SYSTABSTATS_STR-EMPTYPGCNT sy-vline 
WA_SYB_SYSTABSTATS_STR-PARTITIONID sy-vline 
WA_SYB_SYSTABSTATS_STR-WARMCACHEPGCNT sy-vline 
WA_SYB_SYSTABSTATS_STR-UNUSEDPGCNT sy-vline 
WA_SYB_SYSTABSTATS_STR-OAMPAGECNT sy-vline 
WA_SYB_SYSTABSTATS_STR-ROWCNT sy-vline 
WA_SYB_SYSTABSTATS_STR-FORWROWCNT sy-vline 
WA_SYB_SYSTABSTATS_STR-DELROWCNT sy-vline 
WA_SYB_SYSTABSTATS_STR-DPAGECRCNT sy-vline 
WA_SYB_SYSTABSTATS_STR-IPAGECRCNT sy-vline 
WA_SYB_SYSTABSTATS_STR-DROWCRCNT sy-vline 
WA_SYB_SYSTABSTATS_STR-DATAROWSIZE sy-vline 
WA_SYB_SYSTABSTATS_STR-LEAFROWSIZE sy-vline 
WA_SYB_SYSTABSTATS_STR-STATMODDATE sy-vline 
WA_SYB_SYSTABSTATS_STR-PIOCLMDATA sy-vline 
WA_SYB_SYSTABSTATS_STR-PIOCLMINDEX sy-vline 
WA_SYB_SYSTABSTATS_STR-PIOCSMDATA sy-vline 
WA_SYB_SYSTABSTATS_STR-PIOCSMINDEX sy-vline 
WA_SYB_SYSTABSTATS_STR-PAGECLRATIO sy-vline 
WA_SYB_SYSTABSTATS_STR-IPAGECLRATIO sy-vline 
WA_SYB_SYSTABSTATS_STR-ROWCLRATIO sy-vline 
WA_SYB_SYSTABSTATS_STR-LARGEIOEFF sy-vline 
WA_SYB_SYSTABSTATS_STR-DATACHANGE sy-vline 
WA_SYB_SYSTABSTATS_STR-SPACE_UTL_PCT sy-vline 
WA_SYB_SYSTABSTATS_STR-SPACE_UTL_KB sy-vline 
WA_SYB_SYSTABSTATS_STR-TAB_USED_KB sy-vline 
WA_SYB_SYSTABSTATS_STR-TAB_RESERVED_KB sy-vline      INTO ld_text SEPARATED BY SPACE.

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