ABAP Select data from SAP table /SDF/SMON_WPINFO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SDF/SMON_WPINFO 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 /SDF/SMON_WPINFO. 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 /SDF/SMON_WPINFO 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_/SDF/SMON_WPINFO TYPE STANDARD TABLE OF /SDF/SMON_WPINFO,
      WA_/SDF/SMON_WPINFO TYPE /SDF/SMON_WPINFO,
      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: </SDF/SMON_WPINFO> TYPE /SDF/SMON_WPINFO.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SDF/SMON_WPINFO
  INTO TABLE IT_/SDF/SMON_WPINFO.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SDF/SMON_WPINFO
*  INTO TABLE @DATA(IT_/SDF/SMON_WPINFO2).
*--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_/SDF/SMON_WPINFO INDEX 1 INTO DATA(WA_/SDF/SMON_WPINFO2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SDF/SMON_WPINFO ASSIGNING </SDF/SMON_WPINFO>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SDF/SMON_WPINFO>-GUID = 1.
</SDF/SMON_WPINFO>-DATUM = 1.
</SDF/SMON_WPINFO>-TIME = 1.
</SDF/SMON_WPINFO>-SERVER = 1.
</SDF/SMON_WPINFO>-WP_INDEX = 1.

ENDLOOP.

LOOP AT IT_/SDF/SMON_WPINFO INTO WA_/SDF/SMON_WPINFO.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SDF/SMON_WPINFO-PID, sy-vline,
  WA_/SDF/SMON_WPINFO-STATE, sy-vline,
  WA_/SDF/SMON_WPINFO-STATE_INFO, sy-vline,
  WA_/SDF/SMON_WPINFO-SEM_LOCKING, sy-vline,
  WA_/SDF/SMON_WPINFO-SEM_LOCKED, sy-vline,
  WA_/SDF/SMON_WPINFO-PRIORITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SDF/SMON_WPINFO 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_/SDF/SMON_WPINFO 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_/SDF/SMON_WPINFO INTO WA_/SDF/SMON_WPINFO.


*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_/SDF/SMON_WPINFO_STR, 
GUID TYPE STRING,
DATUM TYPE STRING,
TIME TYPE STRING,
SERVER TYPE STRING,
WP_INDEX TYPE STRING,
PID TYPE STRING,
STATE TYPE STRING,
STATE_INFO TYPE STRING,
SEM_LOCKING TYPE STRING,
SEM_LOCKED TYPE STRING,
PRIORITY TYPE STRING,
FAILURES TYPE STRING,
RESTART TYPE STRING,
TENANT TYPE STRING,
USER_NAME TYPE STRING,
LOGON_HDL TYPE STRING,
LOGON_ID TYPE STRING,
SESSION_HDL TYPE STRING,
LOGON_TYPE TYPE STRING,
LOGON_SUB_TYPE TYPE STRING,
CPU_SYSTEM TYPE STRING,
CPU_USER TYPE STRING,
CPU_SYS_MS TYPE STRING,
CPU_TOT_MS TYPE STRING,
DBRECORDS TYPE STRING,
DBRECORDS_C TYPE STRING,
DBTIME TYPE STRING,
DBTIME_C TYPE STRING,
DELTATIMEMS TYPE STRING,
MEMSUM TYPE STRING,
PRIVSUM TYPE STRING,
ELAPSED_TIME TYPE STRING,
WP_PROGRAM TYPE STRING,
MAIN_PROGRAM TYPE STRING,
CURRENT_ACTION TYPE STRING,
ACTION_INFO TYPE STRING,
APPLICATION TYPE STRING,
APPLICATION_INFO TYPE STRING,
START_OF_WAIT TYPE STRING,
WAIT_FOR TYPE STRING,
WAIT_INFO TYPE STRING,
WP_TYPE TYPE STRING,
ROOTTYPE TYPE STRING,
ROOTNAME TYPE STRING,
BTCJOBNAME TYPE STRING,
BTCJOBCNT TYPE STRING,
CONTEXT_ID TYPE STRING,
STARTTIME1 TYPE STRING,
STARTTIME2 TYPE STRING,
TRACE_LEVEL TYPE STRING,
STACK_GUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SDF/SMON_WPINFO_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_/SDF/SMON_WPINFO_STR-GUID sy-vline 
WA_/SDF/SMON_WPINFO_STR-DATUM sy-vline 
WA_/SDF/SMON_WPINFO_STR-TIME sy-vline 
WA_/SDF/SMON_WPINFO_STR-SERVER sy-vline 
WA_/SDF/SMON_WPINFO_STR-WP_INDEX sy-vline 
WA_/SDF/SMON_WPINFO_STR-PID sy-vline 
WA_/SDF/SMON_WPINFO_STR-STATE sy-vline 
WA_/SDF/SMON_WPINFO_STR-STATE_INFO sy-vline 
WA_/SDF/SMON_WPINFO_STR-SEM_LOCKING sy-vline 
WA_/SDF/SMON_WPINFO_STR-SEM_LOCKED sy-vline 
WA_/SDF/SMON_WPINFO_STR-PRIORITY sy-vline 
WA_/SDF/SMON_WPINFO_STR-FAILURES sy-vline 
WA_/SDF/SMON_WPINFO_STR-RESTART sy-vline 
WA_/SDF/SMON_WPINFO_STR-TENANT sy-vline 
WA_/SDF/SMON_WPINFO_STR-USER_NAME sy-vline 
WA_/SDF/SMON_WPINFO_STR-LOGON_HDL sy-vline 
WA_/SDF/SMON_WPINFO_STR-LOGON_ID sy-vline 
WA_/SDF/SMON_WPINFO_STR-SESSION_HDL sy-vline 
WA_/SDF/SMON_WPINFO_STR-LOGON_TYPE sy-vline 
WA_/SDF/SMON_WPINFO_STR-LOGON_SUB_TYPE sy-vline 
WA_/SDF/SMON_WPINFO_STR-CPU_SYSTEM sy-vline 
WA_/SDF/SMON_WPINFO_STR-CPU_USER sy-vline 
WA_/SDF/SMON_WPINFO_STR-CPU_SYS_MS sy-vline 
WA_/SDF/SMON_WPINFO_STR-CPU_TOT_MS sy-vline 
WA_/SDF/SMON_WPINFO_STR-DBRECORDS sy-vline 
WA_/SDF/SMON_WPINFO_STR-DBRECORDS_C sy-vline 
WA_/SDF/SMON_WPINFO_STR-DBTIME sy-vline 
WA_/SDF/SMON_WPINFO_STR-DBTIME_C sy-vline 
WA_/SDF/SMON_WPINFO_STR-DELTATIMEMS sy-vline 
WA_/SDF/SMON_WPINFO_STR-MEMSUM sy-vline 
WA_/SDF/SMON_WPINFO_STR-PRIVSUM sy-vline 
WA_/SDF/SMON_WPINFO_STR-ELAPSED_TIME sy-vline 
WA_/SDF/SMON_WPINFO_STR-WP_PROGRAM sy-vline 
WA_/SDF/SMON_WPINFO_STR-MAIN_PROGRAM sy-vline 
WA_/SDF/SMON_WPINFO_STR-CURRENT_ACTION sy-vline 
WA_/SDF/SMON_WPINFO_STR-ACTION_INFO sy-vline 
WA_/SDF/SMON_WPINFO_STR-APPLICATION sy-vline 
WA_/SDF/SMON_WPINFO_STR-APPLICATION_INFO sy-vline 
WA_/SDF/SMON_WPINFO_STR-START_OF_WAIT sy-vline 
WA_/SDF/SMON_WPINFO_STR-WAIT_FOR sy-vline 
WA_/SDF/SMON_WPINFO_STR-WAIT_INFO sy-vline 
WA_/SDF/SMON_WPINFO_STR-WP_TYPE sy-vline 
WA_/SDF/SMON_WPINFO_STR-ROOTTYPE sy-vline 
WA_/SDF/SMON_WPINFO_STR-ROOTNAME sy-vline 
WA_/SDF/SMON_WPINFO_STR-BTCJOBNAME sy-vline 
WA_/SDF/SMON_WPINFO_STR-BTCJOBCNT sy-vline 
WA_/SDF/SMON_WPINFO_STR-CONTEXT_ID sy-vline 
WA_/SDF/SMON_WPINFO_STR-STARTTIME1 sy-vline 
WA_/SDF/SMON_WPINFO_STR-STARTTIME2 sy-vline 
WA_/SDF/SMON_WPINFO_STR-TRACE_LEVEL sy-vline 
WA_/SDF/SMON_WPINFO_STR-STACK_GUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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