ABAP Select data from SAP table PERSON 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 PERSON 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 PERSON. 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 PERSON 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_PERSON TYPE STANDARD TABLE OF PERSON,
      WA_PERSON TYPE PERSON,
      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: <PERSON> TYPE PERSON.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PERSON
*  INTO TABLE @DATA(IT_PERSON2).
*--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_PERSON INDEX 1 INTO DATA(WA_PERSON2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PERSON>-PERNR = 1.
<PERSON>-OTYPE = 1.
<PERSON>-BEGDA = 1.
<PERSON>-ENDDA = 1.
<PERSON>-STATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PERSON-BUKRS, sy-vline,
  WA_PERSON-WERKS, sy-vline,
  WA_PERSON-PERSG, sy-vline,
  WA_PERSON-PERSK, sy-vline,
  WA_PERSON-KOKRS, sy-vline,
  WA_PERSON-KOSTL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PERSON 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_PERSON 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_PERSON INTO WA_PERSON.


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

*Conversion exit PDATE, internal->external for field GBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_PERSON-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PERSON-GBDAT.
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_PERSON_STR, 
PERNR TYPE STRING,
OTYPE TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
STATUS TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
ORGEH TYPE STRING,
ORGEH_TXT TYPE STRING,
PLANS TYPE STRING,
PLANS_TXT TYPE STRING,
STELL TYPE STRING,
STELL_TXT TYPE STRING,
ANRED TYPE STRING,
ENAME TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
TITEL TYPE STRING,
GESCH TYPE STRING,
GBDAT TYPE STRING,
NATIO TYPE STRING,
KONFE TYPE STRING,
FAMST TYPE STRING,
PSTLZ TYPE STRING,
ORT01 TYPE STRING,
STRAS TYPE STRING,
LAND TYPE STRING,
TELNR TYPE STRING,
USRTY TYPE STRING,
SYSID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PERSON_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_PERSON_STR-PERNR sy-vline 
WA_PERSON_STR-OTYPE sy-vline 
WA_PERSON_STR-BEGDA sy-vline 
WA_PERSON_STR-ENDDA sy-vline 
WA_PERSON_STR-STATUS sy-vline 
WA_PERSON_STR-BUKRS sy-vline 
WA_PERSON_STR-WERKS sy-vline 
WA_PERSON_STR-PERSG sy-vline 
WA_PERSON_STR-PERSK sy-vline 
WA_PERSON_STR-KOKRS sy-vline 
WA_PERSON_STR-KOSTL sy-vline 
WA_PERSON_STR-ORGEH sy-vline 
WA_PERSON_STR-ORGEH_TXT sy-vline 
WA_PERSON_STR-PLANS sy-vline 
WA_PERSON_STR-PLANS_TXT sy-vline 
WA_PERSON_STR-STELL sy-vline 
WA_PERSON_STR-STELL_TXT sy-vline 
WA_PERSON_STR-ANRED sy-vline 
WA_PERSON_STR-ENAME sy-vline 
WA_PERSON_STR-NACHN sy-vline 
WA_PERSON_STR-VORNA sy-vline 
WA_PERSON_STR-TITEL sy-vline 
WA_PERSON_STR-GESCH sy-vline 
WA_PERSON_STR-GBDAT sy-vline 
WA_PERSON_STR-NATIO sy-vline 
WA_PERSON_STR-KONFE sy-vline 
WA_PERSON_STR-FAMST sy-vline 
WA_PERSON_STR-PSTLZ sy-vline 
WA_PERSON_STR-ORT01 sy-vline 
WA_PERSON_STR-STRAS sy-vline 
WA_PERSON_STR-LAND sy-vline 
WA_PERSON_STR-TELNR sy-vline 
WA_PERSON_STR-USRTY sy-vline 
WA_PERSON_STR-SYSID sy-vline      INTO ld_text SEPARATED BY SPACE.

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