ABAP Select data from SAP table PFFLD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PFFLD
*  INTO TABLE @DATA(IT_PFFLD2).
*--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_PFFLD INDEX 1 INTO DATA(WA_PFFLD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PFFLD>-MANDT = 1.
<PFFLD>-LOGSYS = 1.
<PFFLD>-TIMESTMP = 1.
<PFFLD>-STEP_TIMESTMP = 1.
<PFFLD>-KOKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PFFLD-BUKRS, sy-vline,
  WA_PFFLD-GSBER, sy-vline,
  WA_PFFLD-WERKS, sy-vline,
  WA_PFFLD-LMONA, sy-vline,
  WA_PFFLD-FIELD_LMONA, sy-vline,
  WA_PFFLD-ERKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PFFLD 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_PFFLD 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_PFFLD INTO WA_PFFLD.


*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.

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PFFLD-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFFLD-LOGSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PFFLD-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFFLD-RLDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PFFLD-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFFLD-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR_BIS
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PFFLD-GJAHR_BIS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFFLD-GJAHR_BIS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PFFLD-VERSN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFFLD-VERSN.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PFFLD_STR, 
MANDT TYPE STRING,
LOGSYS TYPE STRING,
TIMESTMP TYPE STRING,
STEP_TIMESTMP TYPE STRING,
KOKRS TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
WERKS TYPE STRING,
LMONA TYPE STRING,
FIELD_LMONA TYPE STRING,
ERKRS TYPE STRING,
RLDNR TYPE STRING,
BWKEY TYPE STRING,
GJAHR TYPE STRING,
GJAHR_BIS TYPE STRING,
FROM_P TYPE STRING,
TO_P TYPE STRING,
VERSN TYPE STRING,
KSCYC TYPE STRING,
RUN_TYPE TYPE STRING,
BUDAT TYPE STRING,
KALST TYPE STRING,
STARTDATE TYPE STRING,
STARTTIME TYPE STRING,
ENDDATE TYPE STRING,
ENDTIME TYPE STRING,
STATUSDATE TYPE STRING,
STATUSTIME TYPE STRING,
STATUSER TYPE STRING,
STATTEXT TYPE STRING,
APLSTAT TYPE STRING,
USSTAT TYPE STRING,
MSGFLG TYPE STRING,
ACTLOG TYPE STRING,
OBJECTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PFFLD_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_PFFLD_STR-MANDT sy-vline 
WA_PFFLD_STR-LOGSYS sy-vline 
WA_PFFLD_STR-TIMESTMP sy-vline 
WA_PFFLD_STR-STEP_TIMESTMP sy-vline 
WA_PFFLD_STR-KOKRS sy-vline 
WA_PFFLD_STR-BUKRS sy-vline 
WA_PFFLD_STR-GSBER sy-vline 
WA_PFFLD_STR-WERKS sy-vline 
WA_PFFLD_STR-LMONA sy-vline 
WA_PFFLD_STR-FIELD_LMONA sy-vline 
WA_PFFLD_STR-ERKRS sy-vline 
WA_PFFLD_STR-RLDNR sy-vline 
WA_PFFLD_STR-BWKEY sy-vline 
WA_PFFLD_STR-GJAHR sy-vline 
WA_PFFLD_STR-GJAHR_BIS sy-vline 
WA_PFFLD_STR-FROM_P sy-vline 
WA_PFFLD_STR-TO_P sy-vline 
WA_PFFLD_STR-VERSN sy-vline 
WA_PFFLD_STR-KSCYC sy-vline 
WA_PFFLD_STR-RUN_TYPE sy-vline 
WA_PFFLD_STR-BUDAT sy-vline 
WA_PFFLD_STR-KALST sy-vline 
WA_PFFLD_STR-STARTDATE sy-vline 
WA_PFFLD_STR-STARTTIME sy-vline 
WA_PFFLD_STR-ENDDATE sy-vline 
WA_PFFLD_STR-ENDTIME sy-vline 
WA_PFFLD_STR-STATUSDATE sy-vline 
WA_PFFLD_STR-STATUSTIME sy-vline 
WA_PFFLD_STR-STATUSER sy-vline 
WA_PFFLD_STR-STATTEXT sy-vline 
WA_PFFLD_STR-APLSTAT sy-vline 
WA_PFFLD_STR-USSTAT sy-vline 
WA_PFFLD_STR-MSGFLG sy-vline 
WA_PFFLD_STR-ACTLOG sy-vline 
WA_PFFLD_STR-OBJECTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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