ABAP Select data from SAP table ISMSD_PDF_SPM_POSTAL_UNIT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISMSD_PDF_SPM_POSTAL_UNIT
*  INTO TABLE @DATA(IT_ISMSD_PDF_SPM_POSTAL_UNIT2).
*--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_ISMSD_PDF_SPM_POSTAL_UNIT INDEX 1 INTO DATA(WA_ISMSD_PDF_SPM_POSTAL_UNIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISMSD_PDF_SPM_POSTAL_UNIT>-MANDT = 1.
<ISMSD_PDF_SPM_POSTAL_UNIT>-FVNR = 1.
<ISMSD_PDF_SPM_POSTAL_UNIT>-LAND1 = 1.
<ISMSD_PDF_SPM_POSTAL_UNIT>-ARTPOSTE = 1.
<ISMSD_PDF_SPM_POSTAL_UNIT>-PSTEIN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISMSD_PDF_SPM_POSTAL_UNIT-GUELTIGAB, sy-vline,
  WA_ISMSD_PDF_SPM_POSTAL_UNIT-GUELTIGBIS, sy-vline,
  WA_ISMSD_PDF_SPM_POSTAL_UNIT-HNRKENN, sy-vline,
  WA_ISMSD_PDF_SPM_POSTAL_UNIT-HAUSNRVON, sy-vline,
  WA_ISMSD_PDF_SPM_POSTAL_UNIT-HAUSNRBIS, sy-vline,
  WA_ISMSD_PDF_SPM_POSTAL_UNIT-HNRZUSVON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISMSD_PDF_SPM_POSTAL_UNIT 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_ISMSD_PDF_SPM_POSTAL_UNIT 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_ISMSD_PDF_SPM_POSTAL_UNIT INTO WA_ISMSD_PDF_SPM_POSTAL_UNIT.


*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 PSTEIN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISMSD_PDF_SPM_POSTAL_UNIT-PSTEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISMSD_PDF_SPM_POSTAL_UNIT-PSTEIN.
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_ISMSD_PDF_SPM_POSTAL_UNIT_STR, 
MANDT TYPE STRING,
FVNR TYPE STRING,
LAND1 TYPE STRING,
ARTPOSTE TYPE STRING,
PSTEIN TYPE STRING,
GUELTIGAB TYPE STRING,
GUELTIGBIS TYPE STRING,
HNRKENN TYPE STRING,
HAUSNRVON TYPE STRING,
HAUSNRBIS TYPE STRING,
HNRZUSVON TYPE STRING,
HNRZUSBIS TYPE STRING,
ADRZUSATZ TYPE STRING,
STOCKWERK TYPE STRING,
XDETAIL TYPE STRING,
HNVONG TYPE STRING,
HZVONG TYPE STRING,
HNBISG TYPE STRING,
HZBISG TYPE STRING,
HNVONU TYPE STRING,
HZVONU TYPE STRING,
HNBISU TYPE STRING,
HZBISU TYPE STRING,
DESCRIPTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISMSD_PDF_SPM_POSTAL_UNIT_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_ISMSD_PDF_SPM_POSTAL_UNIT_STR-MANDT sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-FVNR sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-LAND1 sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-ARTPOSTE sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-PSTEIN sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-GUELTIGAB sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-GUELTIGBIS sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-HNRKENN sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-HAUSNRVON sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-HAUSNRBIS sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-HNRZUSVON sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-HNRZUSBIS sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-ADRZUSATZ sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-STOCKWERK sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-XDETAIL sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-HNVONG sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-HZVONG sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-HNBISG sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-HZBISG sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-HNVONU sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-HZVONU sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-HNBISU sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-HZBISU sy-vline 
WA_ISMSD_PDF_SPM_POSTAL_UNIT_STR-DESCRIPTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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