ABAP Select data from SAP table PFAMMITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PFAMMITEM
*  INTO TABLE @DATA(IT_PFAMMITEM2).
*--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_PFAMMITEM INDEX 1 INTO DATA(WA_PFAMMITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PFAMMITEM>-MANDT = 1.
<PFAMMITEM>-COMPANYCODE = 1.
<PFAMMITEM>-FIACCOUNTTYPE = 1.
<PFAMMITEM>-FIDOCUMENTTYPE = 1.
<PFAMMITEM>-TRANSACTIONDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PFAMMITEM-HOUSEBANK, sy-vline,
  WA_PFAMMITEM-HOUSEBANKACCOUNT, sy-vline,
  WA_PFAMMITEM-BANKACCOUNTID, sy-vline,
  WA_PFAMMITEM-CERTAINTYLEVEL, sy-vline,
  WA_PFAMMITEM-CURRENCY, sy-vline,
  WA_PFAMMITEM-PLANNINGLEVEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PFAMMITEM 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_PFAMMITEM 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_PFAMMITEM INTO WA_PFAMMITEM.


*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 CASHPLANNINGGROUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PFAMMITEM-CASHPLANNINGGROUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFAMMITEM-CASHPLANNINGGROUP.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field TRADINGPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PFAMMITEM-TRADINGPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFAMMITEM-TRADINGPARTNER.
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_PFAMMITEM_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
FIACCOUNTTYPE TYPE STRING,
FIDOCUMENTTYPE TYPE STRING,
TRANSACTIONDATE TYPE STRING,
HOUSEBANK TYPE STRING,
HOUSEBANKACCOUNT TYPE STRING,
BANKACCOUNTID TYPE STRING,
CERTAINTYLEVEL TYPE STRING,
CURRENCY TYPE STRING,
PLANNINGLEVEL TYPE STRING,
CASHPLANNINGGROUP TYPE STRING,
LIQUIDITYITEM TYPE STRING,
GLACCOUNT TYPE STRING,
PROFITCENTER TYPE STRING,
SEGMENT TYPE STRING,
BUSINESSAREA TYPE STRING,
TRADINGPARTNER TYPE STRING,
EXPIRATIONDATE TYPE STRING,
DIRECTION TYPE STRING,
AMOUNT TYPE STRING,
BASEAMOUNT TYPE STRING,
BASECURRENCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PFAMMITEM_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_PFAMMITEM_STR-MANDT sy-vline 
WA_PFAMMITEM_STR-COMPANYCODE sy-vline 
WA_PFAMMITEM_STR-FIACCOUNTTYPE sy-vline 
WA_PFAMMITEM_STR-FIDOCUMENTTYPE sy-vline 
WA_PFAMMITEM_STR-TRANSACTIONDATE sy-vline 
WA_PFAMMITEM_STR-HOUSEBANK sy-vline 
WA_PFAMMITEM_STR-HOUSEBANKACCOUNT sy-vline 
WA_PFAMMITEM_STR-BANKACCOUNTID sy-vline 
WA_PFAMMITEM_STR-CERTAINTYLEVEL sy-vline 
WA_PFAMMITEM_STR-CURRENCY sy-vline 
WA_PFAMMITEM_STR-PLANNINGLEVEL sy-vline 
WA_PFAMMITEM_STR-CASHPLANNINGGROUP sy-vline 
WA_PFAMMITEM_STR-LIQUIDITYITEM sy-vline 
WA_PFAMMITEM_STR-GLACCOUNT sy-vline 
WA_PFAMMITEM_STR-PROFITCENTER sy-vline 
WA_PFAMMITEM_STR-SEGMENT sy-vline 
WA_PFAMMITEM_STR-BUSINESSAREA sy-vline 
WA_PFAMMITEM_STR-TRADINGPARTNER sy-vline 
WA_PFAMMITEM_STR-EXPIRATIONDATE sy-vline 
WA_PFAMMITEM_STR-DIRECTION sy-vline 
WA_PFAMMITEM_STR-AMOUNT sy-vline 
WA_PFAMMITEM_STR-BASEAMOUNT sy-vline 
WA_PFAMMITEM_STR-BASECURRENCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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