ABAP Select data from SAP table P0017 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P0017 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 P0017. 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 P0017 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_P0017 TYPE STANDARD TABLE OF P0017,
      WA_P0017 TYPE P0017,
      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: <P0017> TYPE P0017.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P0017.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P0017
  INTO TABLE IT_P0017.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P0017
*  INTO TABLE @DATA(IT_P00172).
*--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_P0017 INDEX 1 INTO DATA(WA_P00172).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P0017 ASSIGNING <P0017>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P0017>-PERNR = 1.
<P0017>-INFTY = 1.
<P0017>-SUBTY = 1.
<P0017>-OBJPS = 1.
<P0017>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_P0017 INTO WA_P0017.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P0017-ENDDA, sy-vline,
  WA_P0017-BEGDA, sy-vline,
  WA_P0017-SEQNR, sy-vline,
  WA_P0017-AEDTM, sy-vline,
  WA_P0017-UNAME, sy-vline,
  WA_P0017-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P0017 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_P0017 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_P0017 INTO WA_P0017.


*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_P0017-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P0017-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P0017-GRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P0017-GRANT_NBR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_P0017-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P0017-FIPEX.
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_P0017_STR, 
PERNR TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
SPRPS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
HISTO TYPE STRING,
ITXEX TYPE STRING,
REFEX TYPE STRING,
ORDEX TYPE STRING,
ITBLD TYPE STRING,
PREAS TYPE STRING,
FLAG1 TYPE STRING,
FLAG2 TYPE STRING,
FLAG3 TYPE STRING,
FLAG4 TYPE STRING,
RESE1 TYPE STRING,
RESE2 TYPE STRING,
GRPVL TYPE STRING,
PKWRG TYPE STRING,
PKWKL TYPE STRING,
PEKEZ TYPE STRING,
ERKLA TYPE STRING,
ERGRU TYPE STRING,
SPEBE TYPE STRING,
BWAEN TYPE STRING,
PTZUO TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
KOSTL TYPE STRING,
GSBER TYPE STRING,
FISTL TYPE STRING,
GEBER TYPE STRING,
KZPMF TYPE STRING,
KFZBD TYPE STRING,
TXJCD TYPE STRING,
KFZKZ TYPE STRING,
FKBER TYPE STRING,
GRANT_NBR TYPE STRING,
FIPEX TYPE STRING,
STAND_APP TYPE STRING,
TRVEDI TYPE STRING,
BUDGET_PERIOD TYPE STRING,
CNSMPT_INCITY TYPE STRING,
CNSMPT_OVERLAND TYPE STRING,
CNSMPT_COMBINED TYPE STRING,
FUEL_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P0017_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_P0017_STR-PERNR sy-vline 
WA_P0017_STR-INFTY sy-vline 
WA_P0017_STR-SUBTY sy-vline 
WA_P0017_STR-OBJPS sy-vline 
WA_P0017_STR-SPRPS sy-vline 
WA_P0017_STR-ENDDA sy-vline 
WA_P0017_STR-BEGDA sy-vline 
WA_P0017_STR-SEQNR sy-vline 
WA_P0017_STR-AEDTM sy-vline 
WA_P0017_STR-UNAME sy-vline 
WA_P0017_STR-HISTO sy-vline 
WA_P0017_STR-ITXEX sy-vline 
WA_P0017_STR-REFEX sy-vline 
WA_P0017_STR-ORDEX sy-vline 
WA_P0017_STR-ITBLD sy-vline 
WA_P0017_STR-PREAS sy-vline 
WA_P0017_STR-FLAG1 sy-vline 
WA_P0017_STR-FLAG2 sy-vline 
WA_P0017_STR-FLAG3 sy-vline 
WA_P0017_STR-FLAG4 sy-vline 
WA_P0017_STR-RESE1 sy-vline 
WA_P0017_STR-RESE2 sy-vline 
WA_P0017_STR-GRPVL sy-vline 
WA_P0017_STR-PKWRG sy-vline 
WA_P0017_STR-PKWKL sy-vline 
WA_P0017_STR-PEKEZ sy-vline 
WA_P0017_STR-ERKLA sy-vline 
WA_P0017_STR-ERGRU sy-vline 
WA_P0017_STR-SPEBE sy-vline 
WA_P0017_STR-BWAEN sy-vline 
WA_P0017_STR-PTZUO sy-vline 
WA_P0017_STR-BUKRS sy-vline 
WA_P0017_STR-WERKS sy-vline 
WA_P0017_STR-KOSTL sy-vline 
WA_P0017_STR-GSBER sy-vline 
WA_P0017_STR-FISTL sy-vline 
WA_P0017_STR-GEBER sy-vline 
WA_P0017_STR-KZPMF sy-vline 
WA_P0017_STR-KFZBD sy-vline 
WA_P0017_STR-TXJCD sy-vline 
WA_P0017_STR-KFZKZ sy-vline 
WA_P0017_STR-FKBER sy-vline 
WA_P0017_STR-GRANT_NBR sy-vline 
WA_P0017_STR-FIPEX sy-vline 
WA_P0017_STR-STAND_APP sy-vline 
WA_P0017_STR-TRVEDI sy-vline 
WA_P0017_STR-BUDGET_PERIOD sy-vline 
WA_P0017_STR-CNSMPT_INCITY sy-vline 
WA_P0017_STR-CNSMPT_OVERLAND sy-vline 
WA_P0017_STR-CNSMPT_COMBINED sy-vline 
WA_P0017_STR-FUEL_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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