ABAP Select data from SAP table PFIFINSSKF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PFIFINSSKF
*  INTO TABLE @DATA(IT_PFIFINSSKF2).
*--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_PFIFINSSKF INDEX 1 INTO DATA(WA_PFIFINSSKF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PFIFINSSKF>-MANDT = 1.
<PFIFINSSKF>-STAGR = 1.
<PFIFINSSKF>-RECID = 1.
<PFIFINSSKF>-DATE_FROM = 1.
<PFIFINSSKF>-GRTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PFIFINSSKF-MSL, sy-vline,
  WA_PFIFINSSKF-RUNIT, sy-vline,
  WA_PFIFINSSKF-TIMESTAMP, sy-vline,
  WA_PFIFINSSKF-RBUKRS, sy-vline,
  WA_PFIFINSSKF-RRCTY, sy-vline,
  WA_PFIFINSSKF-CATEGORY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PFIFINSSKF 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_PFIFINSSKF 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_PFIFINSSKF INTO WA_PFIFINSSKF.


*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 CUNIT, internal->external for field RUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PFIFINSSKF-RUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFIFINSSKF-RUNIT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_PFIFINSSKF-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFIFINSSKF-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field PS_POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_PFIFINSSKF-PS_POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFIFINSSKF-PS_POSID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit KONPD, internal->external for field PS_PRJ_PNR
CALL FUNCTION 'CONVERSION_EXIT_KONPD_OUTPUT'
  EXPORTING
    input =                      WA_PFIFINSSKF-PS_PRJ_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFIFINSSKF-PS_PRJ_PNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field PS_PSPID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_PFIFINSSKF-PS_PSPID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFIFINSSKF-PS_PSPID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit NUMCV, internal->external for field NPLNR_VORGN
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_PFIFINSSKF-NPLNR_VORGN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFIFINSSKF-NPLNR_VORGN.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field SERVICE_DOC_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PFIFINSSKF-SERVICE_DOC_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFIFINSSKF-SERVICE_DOC_ID.
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_PFIFINSSKF_STR, 
MANDT TYPE STRING,
STAGR TYPE STRING,
RECID TYPE STRING,
DATE_FROM TYPE STRING,
GRTYP TYPE STRING,
MSL TYPE STRING,
RUNIT TYPE STRING,
TIMESTAMP TYPE STRING,
RBUKRS TYPE STRING,
RRCTY TYPE STRING,
CATEGORY TYPE STRING,
RCNTR TYPE STRING,
PRCTR TYPE STRING,
RFAREA TYPE STRING,
RBUSA TYPE STRING,
KOKRS TYPE STRING,
SEGMENT TYPE STRING,
VORGN TYPE STRING,
ACCASTY TYPE STRING,
LOGSYS TYPE STRING,
OBJNR TYPE STRING,
HRKFT TYPE STRING,
SCOPE TYPE STRING,
AUFNR TYPE STRING,
AUTYP TYPE STRING,
PS_PSP_PNR TYPE STRING,
PS_POSID TYPE STRING,
PS_PRJ_PNR TYPE STRING,
PS_PSPID TYPE STRING,
NPLNR TYPE STRING,
NPLNR_VORGN TYPE STRING,
PRZNR TYPE STRING,
KSTRG TYPE STRING,
RFUND TYPE STRING,
RGRANT_NBR TYPE STRING,
RBUDGET_PD TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
LSTAR TYPE STRING,
SERVICE_DOC_TYPE TYPE STRING,
SERVICE_DOC_ID TYPE STRING,
SERVICE_DOC_ITEM_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PFIFINSSKF_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_PFIFINSSKF_STR-MANDT sy-vline 
WA_PFIFINSSKF_STR-STAGR sy-vline 
WA_PFIFINSSKF_STR-RECID sy-vline 
WA_PFIFINSSKF_STR-DATE_FROM sy-vline 
WA_PFIFINSSKF_STR-GRTYP sy-vline 
WA_PFIFINSSKF_STR-MSL sy-vline 
WA_PFIFINSSKF_STR-RUNIT sy-vline 
WA_PFIFINSSKF_STR-TIMESTAMP sy-vline 
WA_PFIFINSSKF_STR-RBUKRS sy-vline 
WA_PFIFINSSKF_STR-RRCTY sy-vline 
WA_PFIFINSSKF_STR-CATEGORY sy-vline 
WA_PFIFINSSKF_STR-RCNTR sy-vline 
WA_PFIFINSSKF_STR-PRCTR sy-vline 
WA_PFIFINSSKF_STR-RFAREA sy-vline 
WA_PFIFINSSKF_STR-RBUSA sy-vline 
WA_PFIFINSSKF_STR-KOKRS sy-vline 
WA_PFIFINSSKF_STR-SEGMENT sy-vline 
WA_PFIFINSSKF_STR-VORGN sy-vline 
WA_PFIFINSSKF_STR-ACCASTY sy-vline 
WA_PFIFINSSKF_STR-LOGSYS sy-vline 
WA_PFIFINSSKF_STR-OBJNR sy-vline 
WA_PFIFINSSKF_STR-HRKFT sy-vline 
WA_PFIFINSSKF_STR-SCOPE sy-vline 
WA_PFIFINSSKF_STR-AUFNR sy-vline 
WA_PFIFINSSKF_STR-AUTYP sy-vline 
WA_PFIFINSSKF_STR-PS_PSP_PNR sy-vline 
WA_PFIFINSSKF_STR-PS_POSID sy-vline 
WA_PFIFINSSKF_STR-PS_PRJ_PNR sy-vline 
WA_PFIFINSSKF_STR-PS_PSPID sy-vline 
WA_PFIFINSSKF_STR-NPLNR sy-vline 
WA_PFIFINSSKF_STR-NPLNR_VORGN sy-vline 
WA_PFIFINSSKF_STR-PRZNR sy-vline 
WA_PFIFINSSKF_STR-KSTRG sy-vline 
WA_PFIFINSSKF_STR-RFUND sy-vline 
WA_PFIFINSSKF_STR-RGRANT_NBR sy-vline 
WA_PFIFINSSKF_STR-RBUDGET_PD sy-vline 
WA_PFIFINSSKF_STR-KDAUF sy-vline 
WA_PFIFINSSKF_STR-KDPOS sy-vline 
WA_PFIFINSSKF_STR-LSTAR sy-vline 
WA_PFIFINSSKF_STR-SERVICE_DOC_TYPE sy-vline 
WA_PFIFINSSKF_STR-SERVICE_DOC_ID sy-vline 
WA_PFIFINSSKF_STR-SERVICE_DOC_ITEM_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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