ABAP Select data from SAP table PFCOMMON64 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PFCOMMON64 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 PFCOMMON64. 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 PFCOMMON64 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_PFCOMMON64 TYPE STANDARD TABLE OF PFCOMMON64,
      WA_PFCOMMON64 TYPE PFCOMMON64,
      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: <PFCOMMON64> TYPE PFCOMMON64.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PFCOMMON64.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PFCOMMON64
  INTO TABLE IT_PFCOMMON64.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PFCOMMON64
*  INTO TABLE @DATA(IT_PFCOMMON642).
*--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_PFCOMMON64 INDEX 1 INTO DATA(WA_PFCOMMON642).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PFCOMMON64 ASSIGNING <PFCOMMON64>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PFCOMMON64>-RFCTI = 1.
<PFCOMMON64>-RFCCNT = 1.
<PFCOMMON64>-ROLLKEY = 1.
<PFCOMMON64>-INPUTLEN = 1.
<PFCOMMON64>-OUTPUTLEN = 1.

ENDLOOP.

LOOP AT IT_PFCOMMON64 INTO WA_PFCOMMON64.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PFCOMMON64-MAXROLL, sy-vline,
  WA_PFCOMMON64-MAXPAGE, sy-vline,
  WA_PFCOMMON64-ROLLINCNT, sy-vline,
  WA_PFCOMMON64-ROLLINTI, sy-vline,
  WA_PFCOMMON64-ROLLOUTCNT, sy-vline,
  WA_PFCOMMON64-ROLLOUTTI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PFCOMMON64 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_PFCOMMON64 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_PFCOMMON64 INTO WA_PFCOMMON64.


*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_PFCOMMON64_STR, 
RFCTI TYPE STRING,
RFCCNT TYPE STRING,
ROLLKEY TYPE STRING,
INPUTLEN TYPE STRING,
OUTPUTLEN TYPE STRING,
MAXROLL TYPE STRING,
MAXPAGE TYPE STRING,
ROLLINCNT TYPE STRING,
ROLLINTI TYPE STRING,
ROLLOUTCNT TYPE STRING,
ROLLOUTTI 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,
DBPROCCNT TYPE STRING,
DBPROCTI TYPE STRING,
GENERATETI TYPE STRING,
REPLOADTI TYPE STRING,
CUALOADTI TYPE STRING,
DYNPLOADTI TYPE STRING,
SRCLODCNT TYPE STRING,
DSQLCNT TYPE STRING,
QUECNT TYPE STRING,
QUETI TYPE STRING,
DDICTI TYPE STRING,
MEMSUM TYPE STRING,
PRIVSUM TYPE STRING,
USEDBYTES TYPE STRING,
MAXBYTES TYPE STRING,
MAXBYTESDI TYPE STRING,
ADCNT TYPE STRING,
ADTIME TYPE STRING,
WPID TYPE STRING,
DISPCNT TYPE STRING,
TASKTYPE TYPE STRING,
PRIVMODE TYPE STRING,
WPRESTART TYPE STRING,
TABLOAD TYPE STRING,
ACCOUNT TYPE STRING,
CLIENT TYPE STRING,
TRANSID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PFCOMMON64_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_PFCOMMON64_STR-RFCTI sy-vline 
WA_PFCOMMON64_STR-RFCCNT sy-vline 
WA_PFCOMMON64_STR-ROLLKEY sy-vline 
WA_PFCOMMON64_STR-INPUTLEN sy-vline 
WA_PFCOMMON64_STR-OUTPUTLEN sy-vline 
WA_PFCOMMON64_STR-MAXROLL sy-vline 
WA_PFCOMMON64_STR-MAXPAGE sy-vline 
WA_PFCOMMON64_STR-ROLLINCNT sy-vline 
WA_PFCOMMON64_STR-ROLLINTI sy-vline 
WA_PFCOMMON64_STR-ROLLOUTCNT sy-vline 
WA_PFCOMMON64_STR-ROLLOUTTI sy-vline 
WA_PFCOMMON64_STR-LOCKCNT sy-vline 
WA_PFCOMMON64_STR-LOCKTI sy-vline 
WA_PFCOMMON64_STR-READDIRCNT sy-vline 
WA_PFCOMMON64_STR-READDIRTI sy-vline 
WA_PFCOMMON64_STR-READDIRREC sy-vline 
WA_PFCOMMON64_STR-READDIRBUF sy-vline 
WA_PFCOMMON64_STR-READSEQCNT sy-vline 
WA_PFCOMMON64_STR-READSEQTI sy-vline 
WA_PFCOMMON64_STR-READSEQREC sy-vline 
WA_PFCOMMON64_STR-READSEQBUF sy-vline 
WA_PFCOMMON64_STR-PHYREADCNT sy-vline 
WA_PFCOMMON64_STR-INSCNT sy-vline 
WA_PFCOMMON64_STR-INSTI sy-vline 
WA_PFCOMMON64_STR-INSREC sy-vline 
WA_PFCOMMON64_STR-PHYINSCNT sy-vline 
WA_PFCOMMON64_STR-UPDCNT sy-vline 
WA_PFCOMMON64_STR-UPDTI sy-vline 
WA_PFCOMMON64_STR-UPDREC sy-vline 
WA_PFCOMMON64_STR-PHYUPDCNT sy-vline 
WA_PFCOMMON64_STR-DELCNT sy-vline 
WA_PFCOMMON64_STR-DELTI sy-vline 
WA_PFCOMMON64_STR-DELREC sy-vline 
WA_PFCOMMON64_STR-PHYDELCNT sy-vline 
WA_PFCOMMON64_STR-COMMITTI sy-vline 
WA_PFCOMMON64_STR-DBPROCCNT sy-vline 
WA_PFCOMMON64_STR-DBPROCTI sy-vline 
WA_PFCOMMON64_STR-GENERATETI sy-vline 
WA_PFCOMMON64_STR-REPLOADTI sy-vline 
WA_PFCOMMON64_STR-CUALOADTI sy-vline 
WA_PFCOMMON64_STR-DYNPLOADTI sy-vline 
WA_PFCOMMON64_STR-SRCLODCNT sy-vline 
WA_PFCOMMON64_STR-DSQLCNT sy-vline 
WA_PFCOMMON64_STR-QUECNT sy-vline 
WA_PFCOMMON64_STR-QUETI sy-vline 
WA_PFCOMMON64_STR-DDICTI sy-vline 
WA_PFCOMMON64_STR-MEMSUM sy-vline 
WA_PFCOMMON64_STR-PRIVSUM sy-vline 
WA_PFCOMMON64_STR-USEDBYTES sy-vline 
WA_PFCOMMON64_STR-MAXBYTES sy-vline 
WA_PFCOMMON64_STR-MAXBYTESDI sy-vline 
WA_PFCOMMON64_STR-ADCNT sy-vline 
WA_PFCOMMON64_STR-ADTIME sy-vline 
WA_PFCOMMON64_STR-WPID sy-vline 
WA_PFCOMMON64_STR-DISPCNT sy-vline 
WA_PFCOMMON64_STR-TASKTYPE sy-vline 
WA_PFCOMMON64_STR-PRIVMODE sy-vline 
WA_PFCOMMON64_STR-WPRESTART sy-vline 
WA_PFCOMMON64_STR-TABLOAD sy-vline 
WA_PFCOMMON64_STR-ACCOUNT sy-vline 
WA_PFCOMMON64_STR-CLIENT sy-vline 
WA_PFCOMMON64_STR-TRANSID sy-vline      INTO ld_text SEPARATED BY SPACE.

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