ABAP Select data from SAP table SAPWLD000 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 SAPWLD000 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 SAPWLD000. 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 SAPWLD000 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_SAPWLD000 TYPE STANDARD TABLE OF SAPWLD000,
      WA_SAPWLD000 TYPE SAPWLD000,
      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: <SAPWLD000> TYPE SAPWLD000.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_SAPWLD000.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM SAPWLD000
  INTO TABLE IT_SAPWLD000.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SAPWLD000
*  INTO TABLE @DATA(IT_SAPWLD0002).
*--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_SAPWLD000 INDEX 1 INTO DATA(WA_SAPWLD0002).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SAPWLD000 ASSIGNING <SAPWLD000>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SAPWLD000>-DSCNT = 1.
<SAPWLD000>-DSCNTLG = 1.
<SAPWLD000>-BTCNT = 1.
<SAPWLD000>-RESPTI = 1.
<SAPWLD000>-RESPTIMX = 1.

ENDLOOP.

LOOP AT IT_SAPWLD000 INTO WA_SAPWLD000.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SAPWLD000-RESPTILG, sy-vline,
  WA_SAPWLD000-CPUTI, sy-vline,
  WA_SAPWLD000-CPUTIMX, sy-vline,
  WA_SAPWLD000-CPUTILG, sy-vline,
  WA_SAPWLD000-QUEUETI, sy-vline,
  WA_SAPWLD000-DBCALLS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SAPWLD000 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_SAPWLD000 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_SAPWLD000 INTO WA_SAPWLD000.


*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_SAPWLD000_STR, 
DSCNT TYPE STRING,
DSCNTLG TYPE STRING,
BTCNT TYPE STRING,
RESPTI TYPE STRING,
RESPTIMX TYPE STRING,
RESPTILG TYPE STRING,
CPUTI TYPE STRING,
CPUTIMX TYPE STRING,
CPUTILG TYPE STRING,
QUEUETI TYPE STRING,
DBCALLS TYPE STRING,
DBCALLTI TYPE STRING,
DBCALLTIMX TYPE STRING,
DBCALLTILG TYPE STRING,
RECCNT TYPE STRING,
READDIRTI TYPE STRING,
READDIRTIM TYPE STRING,
READSEQTI TYPE STRING,
READSEQTIM TYPE STRING,
CHANGETI TYPE STRING,
CHANGETIMX TYPE STRING,
BUFCALLS TYPE STRING,
PHYCALLS TYPE STRING,
ROLLINCNT TYPE STRING,
ROLLINTI TYPE STRING,
ROLLINTIMX TYPE STRING,
ROLLOUTCNT TYPE STRING,
ROLLOUTTI TYPE STRING,
ROLLOUTTIM TYPE STRING,
ROLLEDTI TYPE STRING,
ROLLEDTIMX TYPE STRING,
PROCTI TYPE STRING,
PROCTIMX TYPE STRING,
LOCKCNT TYPE STRING,
LOCKTI TYPE STRING,
LOCKTIMX TYPE STRING,
RFCCNT TYPE STRING,
CPICCNT TYPE STRING,
RFCTI TYPE STRING,
RFCTIMX TYPE STRING,
LOADCNT TYPE STRING,
LOADTI TYPE STRING,
LOADTIMX TYPE STRING,
SOURCECNT TYPE STRING,
GENERTI TYPE STRING,
GENERTIMX TYPE STRING,
QUECNT TYPE STRING,
QUETI TYPE STRING,
QUETIMX TYPE STRING,
DDICCNT TYPE STRING,
DDICTI TYPE STRING,
DDICTIMX TYPE STRING,
PRIVMODES TYPE STRING,
WPRESTARTS TYPE STRING,
NTABCNT TYPE STRING,
MEMSUM TYPE STRING,
MEMSUMMX TYPE STRING,
PRIVSUM TYPE STRING,
PRIVSUMMX TYPE STRING,
MAXROLL TYPE STRING,
MAXROLLMX TYPE STRING,
MAXPAGE TYPE STRING,
MAXPAGEMX TYPE STRING,
INPUTLEN TYPE STRING,
INPUTLENMX TYPE STRING,
OUTPUTLEN TYPE STRING,
OUTPUTLENM TYPE STRING,
DSQLCNT TYPE STRING,
DSQLCNTMX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SAPWLD000_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_SAPWLD000_STR-DSCNT sy-vline 
WA_SAPWLD000_STR-DSCNTLG sy-vline 
WA_SAPWLD000_STR-BTCNT sy-vline 
WA_SAPWLD000_STR-RESPTI sy-vline 
WA_SAPWLD000_STR-RESPTIMX sy-vline 
WA_SAPWLD000_STR-RESPTILG sy-vline 
WA_SAPWLD000_STR-CPUTI sy-vline 
WA_SAPWLD000_STR-CPUTIMX sy-vline 
WA_SAPWLD000_STR-CPUTILG sy-vline 
WA_SAPWLD000_STR-QUEUETI sy-vline 
WA_SAPWLD000_STR-DBCALLS sy-vline 
WA_SAPWLD000_STR-DBCALLTI sy-vline 
WA_SAPWLD000_STR-DBCALLTIMX sy-vline 
WA_SAPWLD000_STR-DBCALLTILG sy-vline 
WA_SAPWLD000_STR-RECCNT sy-vline 
WA_SAPWLD000_STR-READDIRTI sy-vline 
WA_SAPWLD000_STR-READDIRTIM sy-vline 
WA_SAPWLD000_STR-READSEQTI sy-vline 
WA_SAPWLD000_STR-READSEQTIM sy-vline 
WA_SAPWLD000_STR-CHANGETI sy-vline 
WA_SAPWLD000_STR-CHANGETIMX sy-vline 
WA_SAPWLD000_STR-BUFCALLS sy-vline 
WA_SAPWLD000_STR-PHYCALLS sy-vline 
WA_SAPWLD000_STR-ROLLINCNT sy-vline 
WA_SAPWLD000_STR-ROLLINTI sy-vline 
WA_SAPWLD000_STR-ROLLINTIMX sy-vline 
WA_SAPWLD000_STR-ROLLOUTCNT sy-vline 
WA_SAPWLD000_STR-ROLLOUTTI sy-vline 
WA_SAPWLD000_STR-ROLLOUTTIM sy-vline 
WA_SAPWLD000_STR-ROLLEDTI sy-vline 
WA_SAPWLD000_STR-ROLLEDTIMX sy-vline 
WA_SAPWLD000_STR-PROCTI sy-vline 
WA_SAPWLD000_STR-PROCTIMX sy-vline 
WA_SAPWLD000_STR-LOCKCNT sy-vline 
WA_SAPWLD000_STR-LOCKTI sy-vline 
WA_SAPWLD000_STR-LOCKTIMX sy-vline 
WA_SAPWLD000_STR-RFCCNT sy-vline 
WA_SAPWLD000_STR-CPICCNT sy-vline 
WA_SAPWLD000_STR-RFCTI sy-vline 
WA_SAPWLD000_STR-RFCTIMX sy-vline 
WA_SAPWLD000_STR-LOADCNT sy-vline 
WA_SAPWLD000_STR-LOADTI sy-vline 
WA_SAPWLD000_STR-LOADTIMX sy-vline 
WA_SAPWLD000_STR-SOURCECNT sy-vline 
WA_SAPWLD000_STR-GENERTI sy-vline 
WA_SAPWLD000_STR-GENERTIMX sy-vline 
WA_SAPWLD000_STR-QUECNT sy-vline 
WA_SAPWLD000_STR-QUETI sy-vline 
WA_SAPWLD000_STR-QUETIMX sy-vline 
WA_SAPWLD000_STR-DDICCNT sy-vline 
WA_SAPWLD000_STR-DDICTI sy-vline 
WA_SAPWLD000_STR-DDICTIMX sy-vline 
WA_SAPWLD000_STR-PRIVMODES sy-vline 
WA_SAPWLD000_STR-WPRESTARTS sy-vline 
WA_SAPWLD000_STR-NTABCNT sy-vline 
WA_SAPWLD000_STR-MEMSUM sy-vline 
WA_SAPWLD000_STR-MEMSUMMX sy-vline 
WA_SAPWLD000_STR-PRIVSUM sy-vline 
WA_SAPWLD000_STR-PRIVSUMMX sy-vline 
WA_SAPWLD000_STR-MAXROLL sy-vline 
WA_SAPWLD000_STR-MAXROLLMX sy-vline 
WA_SAPWLD000_STR-MAXPAGE sy-vline 
WA_SAPWLD000_STR-MAXPAGEMX sy-vline 
WA_SAPWLD000_STR-INPUTLEN sy-vline 
WA_SAPWLD000_STR-INPUTLENMX sy-vline 
WA_SAPWLD000_STR-OUTPUTLEN sy-vline 
WA_SAPWLD000_STR-OUTPUTLENM sy-vline 
WA_SAPWLD000_STR-DSQLCNT sy-vline 
WA_SAPWLD000_STR-DSQLCNTMX sy-vline      INTO ld_text SEPARATED BY SPACE.

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