ABAP Select data from SAP table PFI_PERSON_INFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PFI_PERSON_INFO
*  INTO TABLE @DATA(IT_PFI_PERSON_INFO2).
*--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_PFI_PERSON_INFO INDEX 1 INTO DATA(WA_PFI_PERSON_INFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PFI_PERSON_INFO>-TXRNO = 1.
<PFI_PERSON_INFO>-BUKRS = 1.
<PFI_PERSON_INFO>-WERKS = 1.
<PFI_PERSON_INFO>-BTRTL = 1.
<PFI_PERSON_INFO>-PERSG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PFI_PERSON_INFO-PERSK, sy-vline,
  WA_PFI_PERSON_INFO-KOSTL, sy-vline,
  WA_PFI_PERSON_INFO-ABKRS, sy-vline,
  WA_PFI_PERSON_INFO-GSBER, sy-vline,
  WA_PFI_PERSON_INFO-PERNR, sy-vline,
  WA_PFI_PERSON_INFO-PERNR_TXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PFI_PERSON_INFO 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_PFI_PERSON_INFO 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_PFI_PERSON_INFO INTO WA_PFI_PERSON_INFO.


*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 KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PFI_PERSON_INFO-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFI_PERSON_INFO-KOSTL.
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_PFI_PERSON_INFO_STR, 
TXRNO TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
KOSTL TYPE STRING,
ABKRS TYPE STRING,
GSBER TYPE STRING,
PERNR TYPE STRING,
PERNR_TXT TYPE STRING,
PERID TYPE STRING,
BUKRS_TXT TYPE STRING,
WERKS_TXT TYPE STRING,
BTRTL_TXT TYPE STRING,
PERSG_TXT TYPE STRING,
PERSK_TXT TYPE STRING,
KOSTL_TXT TYPE STRING,
ABKRS_TXT TYPE STRING,
GSBER_TXT TYPE STRING,
COUNTER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PFI_PERSON_INFO_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_PFI_PERSON_INFO_STR-TXRNO sy-vline 
WA_PFI_PERSON_INFO_STR-BUKRS sy-vline 
WA_PFI_PERSON_INFO_STR-WERKS sy-vline 
WA_PFI_PERSON_INFO_STR-BTRTL sy-vline 
WA_PFI_PERSON_INFO_STR-PERSG sy-vline 
WA_PFI_PERSON_INFO_STR-PERSK sy-vline 
WA_PFI_PERSON_INFO_STR-KOSTL sy-vline 
WA_PFI_PERSON_INFO_STR-ABKRS sy-vline 
WA_PFI_PERSON_INFO_STR-GSBER sy-vline 
WA_PFI_PERSON_INFO_STR-PERNR sy-vline 
WA_PFI_PERSON_INFO_STR-PERNR_TXT sy-vline 
WA_PFI_PERSON_INFO_STR-PERID sy-vline 
WA_PFI_PERSON_INFO_STR-BUKRS_TXT sy-vline 
WA_PFI_PERSON_INFO_STR-WERKS_TXT sy-vline 
WA_PFI_PERSON_INFO_STR-BTRTL_TXT sy-vline 
WA_PFI_PERSON_INFO_STR-PERSG_TXT sy-vline 
WA_PFI_PERSON_INFO_STR-PERSK_TXT sy-vline 
WA_PFI_PERSON_INFO_STR-KOSTL_TXT sy-vline 
WA_PFI_PERSON_INFO_STR-ABKRS_TXT sy-vline 
WA_PFI_PERSON_INFO_STR-GSBER_TXT sy-vline 
WA_PFI_PERSON_INFO_STR-COUNTER sy-vline      INTO ld_text SEPARATED BY SPACE.

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