ABAP Select data from SAP table SQLTISTAT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SQLTISTAT
*  INTO TABLE @DATA(IT_SQLTISTAT2).
*--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_SQLTISTAT INDEX 1 INTO DATA(WA_SQLTISTAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SQLTISTAT>-EXECUTIONS = 1.
<SQLTISTAT>-IDENTICAL = 1.
<SQLTISTAT>-DURATION = 1.
<SQLTISTAT>-TIMEPEREXE = 1.
<SQLTISTAT>-ROWS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SQLTISTAT-ROWSPEREXE, sy-vline,
  WA_SQLTISTAT-AVGTPERROW, sy-vline,
  WA_SQLTISTAT-MINTPERROW, sy-vline,
  WA_SQLTISTAT-BUFFERTYPE, sy-vline,
  WA_SQLTISTAT-TABLEN, sy-vline,
  WA_SQLTISTAT-TABCLASS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SQLTISTAT 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_SQLTISTAT 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_SQLTISTAT INTO WA_SQLTISTAT.


*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_SQLTISTAT_STR, 
EXECUTIONS TYPE STRING,
IDENTICAL TYPE STRING,
DURATION TYPE STRING,
TIMEPEREXE TYPE STRING,
ROWS TYPE STRING,
ROWSPEREXE TYPE STRING,
AVGTPERROW TYPE STRING,
MINTPERROW TYPE STRING,
BUFFERTYPE TYPE STRING,
TABLEN TYPE STRING,
TABCLASS TYPE STRING,
TABLE_L TYPE STRING,
STATEMENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SQLTISTAT_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_SQLTISTAT_STR-EXECUTIONS sy-vline 
WA_SQLTISTAT_STR-IDENTICAL sy-vline 
WA_SQLTISTAT_STR-DURATION sy-vline 
WA_SQLTISTAT_STR-TIMEPEREXE sy-vline 
WA_SQLTISTAT_STR-ROWS sy-vline 
WA_SQLTISTAT_STR-ROWSPEREXE sy-vline 
WA_SQLTISTAT_STR-AVGTPERROW sy-vline 
WA_SQLTISTAT_STR-MINTPERROW sy-vline 
WA_SQLTISTAT_STR-BUFFERTYPE sy-vline 
WA_SQLTISTAT_STR-TABLEN sy-vline 
WA_SQLTISTAT_STR-TABCLASS sy-vline 
WA_SQLTISTAT_STR-TABLE_L sy-vline 
WA_SQLTISTAT_STR-STATEMENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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