ABAP Select data from SAP table SAPWLSTATS 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 SAPWLSTATS 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 SAPWLSTATS. 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 SAPWLSTATS 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_SAPWLSTATS TYPE STANDARD TABLE OF SAPWLSTATS,
      WA_SAPWLSTATS TYPE SAPWLSTATS,
      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: <SAPWLSTATS> TYPE SAPWLSTATS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SAPWLSTATS
*  INTO TABLE @DATA(IT_SAPWLSTATS2).
*--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_SAPWLSTATS INDEX 1 INTO DATA(WA_SAPWLSTATS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SAPWLSTATS>-RESPTI = 1.
<SAPWLSTATS>-DBCALLS = 1.
<SAPWLSTATS>-CPUTI = 1.
<SAPWLSTATS>-QUEUETI = 1.
<SAPWLSTATS>-INPUTLEN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SAPWLSTATS-OUTPUTLEN, sy-vline,
  WA_SAPWLSTATS-ROLLINCNT, sy-vline,
  WA_SAPWLSTATS-ROLLINTI, sy-vline,
  WA_SAPWLSTATS-ROLLOUTCNT, sy-vline,
  WA_SAPWLSTATS-ROLLOUTTI, sy-vline,
  WA_SAPWLSTATS-ROLLED_OUT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SAPWLSTATS 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_SAPWLSTATS 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_SAPWLSTATS INTO WA_SAPWLSTATS.


*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_SAPWLSTATS_STR, 
RESPTI TYPE STRING,
DBCALLS TYPE STRING,
CPUTI TYPE STRING,
QUEUETI TYPE STRING,
INPUTLEN TYPE STRING,
OUTPUTLEN TYPE STRING,
ROLLINCNT TYPE STRING,
ROLLINTI TYPE STRING,
ROLLOUTCNT TYPE STRING,
ROLLOUTTI TYPE STRING,
ROLLED_OUT TYPE STRING,
LOCKCNT TYPE STRING,
LOCKTI TYPE STRING,
READDIRCNT TYPE STRING,
READDIRTI TYPE STRING,
READDIRREC TYPE STRING,
READDIRBUF TYPE STRING,
READSEQCNT TYPE STRING,
READSEQTI TYPE STRING,
READSEQREC TYPE STRING,
READSEQBUF TYPE STRING,
PHYREADCNT TYPE STRING,
INSCNT TYPE STRING,
INSTI TYPE STRING,
INSREC TYPE STRING,
PHYINSCNT TYPE STRING,
UPDCNT TYPE STRING,
UPDTI TYPE STRING,
UPDREC TYPE STRING,
PHYUPDCNT TYPE STRING,
DELCNT TYPE STRING,
DELTI TYPE STRING,
DELREC TYPE STRING,
PHYDELCNT TYPE STRING,
COMMITTI TYPE STRING,
GENERATETI TYPE STRING,
REPLOADTI TYPE STRING,
CUALOADTI TYPE STRING,
DYNPLOADTI TYPE STRING,
DSQLCNT TYPE STRING,
QUECNT TYPE STRING,
QUETI TYPE STRING,
DDICTI TYPE STRING,
CPICCNT TYPE STRING,
CPICTI TYPE STRING,
TABLEPOINT TYPE STRING,
DISPTI TYPE STRING,
READTI TYPE STRING,
CHNGTI TYPE STRING,
DBCALLTI TYPE STRING,
ROLLTI TYPE STRING,
PROCTI TYPE STRING,
LOADTI TYPE STRING,
CHNGCNT TYPE STRING,
READCNT TYPE STRING,
PHYCHNGCNT TYPE STRING,
PHYREADDIR TYPE STRING,
PHYCALLS TYPE STRING,
BUFCALLS TYPE STRING,
RECCNT TYPE STRING,
BYTES TYPE STRING,
AVBYTES TYPE STRING,
MEMSUM TYPE STRING,
PRIVSUM TYPE STRING,
USEDBYTES TYPE STRING,
MAXMEM TYPE STRING,
TIMEINWP TYPE STRING,
GUITIME TYPE STRING,
GUICNT TYPE STRING,
GUINETTIME TYPE STRING,
DBPROCTI TYPE STRING,
DBPROCCNT TYPE STRING,
SLI_CNT TYPE STRING,
PRIVMODCNT TYPE STRING,
MAXPAGE TYPE STRING,
VM_CPU_TIME TYPE STRING,
VM_ELAPSED_TIME TYPE STRING,
VM_CALL_COUNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SAPWLSTATS_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_SAPWLSTATS_STR-RESPTI sy-vline 
WA_SAPWLSTATS_STR-DBCALLS sy-vline 
WA_SAPWLSTATS_STR-CPUTI sy-vline 
WA_SAPWLSTATS_STR-QUEUETI sy-vline 
WA_SAPWLSTATS_STR-INPUTLEN sy-vline 
WA_SAPWLSTATS_STR-OUTPUTLEN sy-vline 
WA_SAPWLSTATS_STR-ROLLINCNT sy-vline 
WA_SAPWLSTATS_STR-ROLLINTI sy-vline 
WA_SAPWLSTATS_STR-ROLLOUTCNT sy-vline 
WA_SAPWLSTATS_STR-ROLLOUTTI sy-vline 
WA_SAPWLSTATS_STR-ROLLED_OUT sy-vline 
WA_SAPWLSTATS_STR-LOCKCNT sy-vline 
WA_SAPWLSTATS_STR-LOCKTI sy-vline 
WA_SAPWLSTATS_STR-READDIRCNT sy-vline 
WA_SAPWLSTATS_STR-READDIRTI sy-vline 
WA_SAPWLSTATS_STR-READDIRREC sy-vline 
WA_SAPWLSTATS_STR-READDIRBUF sy-vline 
WA_SAPWLSTATS_STR-READSEQCNT sy-vline 
WA_SAPWLSTATS_STR-READSEQTI sy-vline 
WA_SAPWLSTATS_STR-READSEQREC sy-vline 
WA_SAPWLSTATS_STR-READSEQBUF sy-vline 
WA_SAPWLSTATS_STR-PHYREADCNT sy-vline 
WA_SAPWLSTATS_STR-INSCNT sy-vline 
WA_SAPWLSTATS_STR-INSTI sy-vline 
WA_SAPWLSTATS_STR-INSREC sy-vline 
WA_SAPWLSTATS_STR-PHYINSCNT sy-vline 
WA_SAPWLSTATS_STR-UPDCNT sy-vline 
WA_SAPWLSTATS_STR-UPDTI sy-vline 
WA_SAPWLSTATS_STR-UPDREC sy-vline 
WA_SAPWLSTATS_STR-PHYUPDCNT sy-vline 
WA_SAPWLSTATS_STR-DELCNT sy-vline 
WA_SAPWLSTATS_STR-DELTI sy-vline 
WA_SAPWLSTATS_STR-DELREC sy-vline 
WA_SAPWLSTATS_STR-PHYDELCNT sy-vline 
WA_SAPWLSTATS_STR-COMMITTI sy-vline 
WA_SAPWLSTATS_STR-GENERATETI sy-vline 
WA_SAPWLSTATS_STR-REPLOADTI sy-vline 
WA_SAPWLSTATS_STR-CUALOADTI sy-vline 
WA_SAPWLSTATS_STR-DYNPLOADTI sy-vline 
WA_SAPWLSTATS_STR-DSQLCNT sy-vline 
WA_SAPWLSTATS_STR-QUECNT sy-vline 
WA_SAPWLSTATS_STR-QUETI sy-vline 
WA_SAPWLSTATS_STR-DDICTI sy-vline 
WA_SAPWLSTATS_STR-CPICCNT sy-vline 
WA_SAPWLSTATS_STR-CPICTI sy-vline 
WA_SAPWLSTATS_STR-TABLEPOINT sy-vline 
WA_SAPWLSTATS_STR-DISPTI sy-vline 
WA_SAPWLSTATS_STR-READTI sy-vline 
WA_SAPWLSTATS_STR-CHNGTI sy-vline 
WA_SAPWLSTATS_STR-DBCALLTI sy-vline 
WA_SAPWLSTATS_STR-ROLLTI sy-vline 
WA_SAPWLSTATS_STR-PROCTI sy-vline 
WA_SAPWLSTATS_STR-LOADTI sy-vline 
WA_SAPWLSTATS_STR-CHNGCNT sy-vline 
WA_SAPWLSTATS_STR-READCNT sy-vline 
WA_SAPWLSTATS_STR-PHYCHNGCNT sy-vline 
WA_SAPWLSTATS_STR-PHYREADDIR sy-vline 
WA_SAPWLSTATS_STR-PHYCALLS sy-vline 
WA_SAPWLSTATS_STR-BUFCALLS sy-vline 
WA_SAPWLSTATS_STR-RECCNT sy-vline 
WA_SAPWLSTATS_STR-BYTES sy-vline 
WA_SAPWLSTATS_STR-AVBYTES sy-vline 
WA_SAPWLSTATS_STR-MEMSUM sy-vline 
WA_SAPWLSTATS_STR-PRIVSUM sy-vline 
WA_SAPWLSTATS_STR-USEDBYTES sy-vline 
WA_SAPWLSTATS_STR-MAXMEM sy-vline 
WA_SAPWLSTATS_STR-TIMEINWP sy-vline 
WA_SAPWLSTATS_STR-GUITIME sy-vline 
WA_SAPWLSTATS_STR-GUICNT sy-vline 
WA_SAPWLSTATS_STR-GUINETTIME sy-vline 
WA_SAPWLSTATS_STR-DBPROCTI sy-vline 
WA_SAPWLSTATS_STR-DBPROCCNT sy-vline 
WA_SAPWLSTATS_STR-SLI_CNT sy-vline 
WA_SAPWLSTATS_STR-PRIVMODCNT sy-vline 
WA_SAPWLSTATS_STR-MAXPAGE sy-vline 
WA_SAPWLSTATS_STR-VM_CPU_TIME sy-vline 
WA_SAPWLSTATS_STR-VM_ELAPSED_TIME sy-vline 
WA_SAPWLSTATS_STR-VM_CALL_COUNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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