ABAP Select data from SAP table P03_KB_PERNR into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP P03_KB_PERNR 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 P03_KB_PERNR. 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 P03_KB_PERNR 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_P03_KB_PERNR TYPE STANDARD TABLE OF P03_KB_PERNR,
      WA_P03_KB_PERNR TYPE P03_KB_PERNR,
      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: <P03_KB_PERNR> TYPE P03_KB_PERNR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P03_KB_PERNR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P03_KB_PERNR
  INTO TABLE IT_P03_KB_PERNR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P03_KB_PERNR
*  INTO TABLE @DATA(IT_P03_KB_PERNR2).
*--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_P03_KB_PERNR INDEX 1 INTO DATA(WA_P03_KB_PERNR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P03_KB_PERNR ASSIGNING <P03_KB_PERNR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P03_KB_PERNR>-LFDNR = 1.
<P03_KB_PERNR>-PERNR = 1.
<P03_KB_PERNR>-NACHN = 1.
<P03_KB_PERNR>-VORNA = 1.
<P03_KB_PERNR>-DGNR0 = 1.

ENDLOOP.

LOOP AT IT_P03_KB_PERNR INTO WA_P03_KB_PERNR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P03_KB_PERNR-DGNA0, sy-vline,
  WA_P03_KB_PERNR-AUSVL, sy-vline,
  WA_P03_KB_PERNR-AUSVG, sy-vline,
  WA_P03_KB_PERNR-MART0, sy-vline,
  WA_P03_KB_PERNR-VSTD0, sy-vline,
  WA_P03_KB_PERNR-ANSP0, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P03_KB_PERNR 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_P03_KB_PERNR 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_P03_KB_PERNR INTO WA_P03_KB_PERNR.


*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.
ENDFORM. 

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

TYPES: BEGIN OF T_P03_KB_PERNR_STR, 
LFDNR TYPE STRING,
PERNR TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
DGNR0 TYPE STRING,
DGNA0 TYPE STRING,
AUSVL TYPE STRING,
AUSVG TYPE STRING,
MART0 TYPE STRING,
VSTD0 TYPE STRING,
ANSP0 TYPE STRING,
AUAB0 TYPE STRING,
AUBI0 TYPE STRING,
FORT0 TYPE STRING,
GRUN0 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P03_KB_PERNR_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_P03_KB_PERNR_STR-LFDNR sy-vline 
WA_P03_KB_PERNR_STR-PERNR sy-vline 
WA_P03_KB_PERNR_STR-NACHN sy-vline 
WA_P03_KB_PERNR_STR-VORNA sy-vline 
WA_P03_KB_PERNR_STR-DGNR0 sy-vline 
WA_P03_KB_PERNR_STR-DGNA0 sy-vline 
WA_P03_KB_PERNR_STR-AUSVL sy-vline 
WA_P03_KB_PERNR_STR-AUSVG sy-vline 
WA_P03_KB_PERNR_STR-MART0 sy-vline 
WA_P03_KB_PERNR_STR-VSTD0 sy-vline 
WA_P03_KB_PERNR_STR-ANSP0 sy-vline 
WA_P03_KB_PERNR_STR-AUAB0 sy-vline 
WA_P03_KB_PERNR_STR-AUBI0 sy-vline 
WA_P03_KB_PERNR_STR-FORT0 sy-vline 
WA_P03_KB_PERNR_STR-GRUN0 sy-vline      INTO ld_text SEPARATED BY SPACE.

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