ABAP Select data from SAP table IHPAD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IHPAD
*  INTO TABLE @DATA(IT_IHPAD2).
*--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_IHPAD INDEX 1 INTO DATA(WA_IHPAD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IHPAD>-MANDT = 1.
<IHPAD>-OBJNR = 1.
<IHPAD>-PARVW = 1.
<IHPAD>-COUNTER = 1.
<IHPAD>-OBTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IHPAD-PARNR, sy-vline,
  WA_IHPAD-INHER, sy-vline,
  WA_IHPAD-ERDAT, sy-vline,
  WA_IHPAD-ERZEIT, sy-vline,
  WA_IHPAD-ERNAM, sy-vline,
  WA_IHPAD-AEDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IHPAD 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_IHPAD 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_IHPAD INTO WA_IHPAD.


*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 PARVW, internal->external for field PARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_IHPAD-PARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IHPAD-PARVW.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit PARVW, internal->external for field PARVW_EXT
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_IHPAD-PARVW_EXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IHPAD-PARVW_EXT.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_IHPAD-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IHPAD-LANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PDATE, internal->external for field GBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_IHPAD-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IHPAD-GBDAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IHPAD-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IHPAD-KUNNR.
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_IHPAD_STR, 
MANDT TYPE STRING,
OBJNR TYPE STRING,
PARVW TYPE STRING,
COUNTER TYPE STRING,
OBTYP TYPE STRING,
PARNR TYPE STRING,
INHER TYPE STRING,
ERDAT TYPE STRING,
ERZEIT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AEZEIT TYPE STRING,
AENAM TYPE STRING,
KZLOESCH TYPE STRING,
ADRNR TYPE STRING,
TZONSP TYPE STRING,
TABPT TYPE STRING,
UPDKZ TYPE STRING,
SLKNZ TYPE STRING,
PARVW_EXT TYPE STRING,
ADR_FLAG TYPE STRING,
ADR_HANDLE TYPE STRING,
ADRNR_KUPAV TYPE STRING,
ADRDA TYPE STRING,
ADRND TYPE STRING,
ADRNP TYPE STRING,
CVP_XBLCK TYPE STRING,
VTEXT TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
NAME3 TYPE STRING,
NAME4 TYPE STRING,
CITY1 TYPE STRING,
CITY2 TYPE STRING,
POST_CODE1 TYPE STRING,
POST_CODE2 TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
STREET TYPE STRING,
PO_BOX TYPE STRING,
LANGU TYPE STRING,
TEL_NUMBER TYPE STRING,
FAX_NUMBER TYPE STRING,
TLX_NUMBER TYPE STRING,
TTX_NUMBER TYPE STRING,
SORT1 TYPE STRING,
NAME_LIST TYPE STRING,
TITLE TYPE STRING,
DEPARTMENT TYPE STRING,
FUNCTION TYPE STRING,
NICKNAME TYPE STRING,
SEX TYPE STRING,
PAFKT TYPE STRING,
PARVO TYPE STRING,
PAVIP TYPE STRING,
GBDAT TYPE STRING,
FAMST TYPE STRING,
KUNNR TYPE STRING,
HOUSE_NUM1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IHPAD_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_IHPAD_STR-MANDT sy-vline 
WA_IHPAD_STR-OBJNR sy-vline 
WA_IHPAD_STR-PARVW sy-vline 
WA_IHPAD_STR-COUNTER sy-vline 
WA_IHPAD_STR-OBTYP sy-vline 
WA_IHPAD_STR-PARNR sy-vline 
WA_IHPAD_STR-INHER sy-vline 
WA_IHPAD_STR-ERDAT sy-vline 
WA_IHPAD_STR-ERZEIT sy-vline 
WA_IHPAD_STR-ERNAM sy-vline 
WA_IHPAD_STR-AEDAT sy-vline 
WA_IHPAD_STR-AEZEIT sy-vline 
WA_IHPAD_STR-AENAM sy-vline 
WA_IHPAD_STR-KZLOESCH sy-vline 
WA_IHPAD_STR-ADRNR sy-vline 
WA_IHPAD_STR-TZONSP sy-vline 
WA_IHPAD_STR-TABPT sy-vline 
WA_IHPAD_STR-UPDKZ sy-vline 
WA_IHPAD_STR-SLKNZ sy-vline 
WA_IHPAD_STR-PARVW_EXT sy-vline 
WA_IHPAD_STR-ADR_FLAG sy-vline 
WA_IHPAD_STR-ADR_HANDLE sy-vline 
WA_IHPAD_STR-ADRNR_KUPAV sy-vline 
WA_IHPAD_STR-ADRDA sy-vline 
WA_IHPAD_STR-ADRND sy-vline 
WA_IHPAD_STR-ADRNP sy-vline 
WA_IHPAD_STR-CVP_XBLCK sy-vline 
WA_IHPAD_STR-VTEXT sy-vline 
WA_IHPAD_STR-NAME1 sy-vline 
WA_IHPAD_STR-NAME2 sy-vline 
WA_IHPAD_STR-NAME3 sy-vline 
WA_IHPAD_STR-NAME4 sy-vline 
WA_IHPAD_STR-CITY1 sy-vline 
WA_IHPAD_STR-CITY2 sy-vline 
WA_IHPAD_STR-POST_CODE1 sy-vline 
WA_IHPAD_STR-POST_CODE2 sy-vline 
WA_IHPAD_STR-COUNTRY sy-vline 
WA_IHPAD_STR-REGION sy-vline 
WA_IHPAD_STR-STREET sy-vline 
WA_IHPAD_STR-PO_BOX sy-vline 
WA_IHPAD_STR-LANGU sy-vline 
WA_IHPAD_STR-TEL_NUMBER sy-vline 
WA_IHPAD_STR-FAX_NUMBER sy-vline 
WA_IHPAD_STR-TLX_NUMBER sy-vline 
WA_IHPAD_STR-TTX_NUMBER sy-vline 
WA_IHPAD_STR-SORT1 sy-vline 
WA_IHPAD_STR-NAME_LIST sy-vline 
WA_IHPAD_STR-TITLE sy-vline 
WA_IHPAD_STR-DEPARTMENT sy-vline 
WA_IHPAD_STR-FUNCTION sy-vline 
WA_IHPAD_STR-NICKNAME sy-vline 
WA_IHPAD_STR-SEX sy-vline 
WA_IHPAD_STR-PAFKT sy-vline 
WA_IHPAD_STR-PARVO sy-vline 
WA_IHPAD_STR-PAVIP sy-vline 
WA_IHPAD_STR-GBDAT sy-vline 
WA_IHPAD_STR-FAMST sy-vline 
WA_IHPAD_STR-KUNNR sy-vline 
WA_IHPAD_STR-HOUSE_NUM1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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