ABAP Select data from SAP table PWBHKCOMIPVH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PWBHKCOMIPVH
*  INTO TABLE @DATA(IT_PWBHKCOMIPVH2).
*--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_PWBHKCOMIPVH INDEX 1 INTO DATA(WA_PWBHKCOMIPVH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PWBHKCOMIPVH>-MANDT = 1.
<PWBHKCOMIPVH>-TKONN = 1.
<PWBHKCOMIPVH>-TPOSN = 1.
<PWBHKCOMIPVH>-SIDE = 1.
<PWBHKCOMIPVH>-TPOSN_COM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PWBHKCOMIPVH-FUTURE, sy-vline,
  WA_PWBHKCOMIPVH-COM_CAT, sy-vline,
  WA_PWBHKCOMIPVH-HKPSTP, sy-vline,
  WA_PWBHKCOMIPVH-MATNR, sy-vline,
  WA_PWBHKCOMIPVH-VENDOR, sy-vline,
  WA_PWBHKCOMIPVH-CUSTOMER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PWBHKCOMIPVH 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_PWBHKCOMIPVH 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_PWBHKCOMIPVH INTO WA_PWBHKCOMIPVH.


*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 TKONN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PWBHKCOMIPVH-TKONN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWBHKCOMIPVH-TKONN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PWBHKCOMIPVH-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWBHKCOMIPVH-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field ELIFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PWBHKCOMIPVH-ELIFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWBHKCOMIPVH-ELIFN.
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_PWBHKCOMIPVH_STR, 
MANDT TYPE STRING,
TKONN TYPE STRING,
TPOSN TYPE STRING,
SIDE TYPE STRING,
TPOSN_COM TYPE STRING,
FUTURE TYPE STRING,
COM_CAT TYPE STRING,
HKPSTP TYPE STRING,
MATNR TYPE STRING,
VENDOR TYPE STRING,
CUSTOMER TYPE STRING,
BATCH TYPE STRING,
EXT_REF TYPE STRING,
TKONN_EX TYPE STRING,
TCTYP TYPE STRING,
TKSACHB TYPE STRING,
KUNNR TYPE STRING,
ELIFN TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
ERZEIT TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
AEZEIT TYPE STRING,
TCCAT TYPE STRING,
CUSTOMER_BEGRU TYPE STRING,
COM_ITEM_CUSTOMER_BEGRU TYPE STRING,
VENDOR_BEGRU TYPE STRING,
COM_ITEM_SUPPLIER_BEGRU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PWBHKCOMIPVH_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_PWBHKCOMIPVH_STR-MANDT sy-vline 
WA_PWBHKCOMIPVH_STR-TKONN sy-vline 
WA_PWBHKCOMIPVH_STR-TPOSN sy-vline 
WA_PWBHKCOMIPVH_STR-SIDE sy-vline 
WA_PWBHKCOMIPVH_STR-TPOSN_COM sy-vline 
WA_PWBHKCOMIPVH_STR-FUTURE sy-vline 
WA_PWBHKCOMIPVH_STR-COM_CAT sy-vline 
WA_PWBHKCOMIPVH_STR-HKPSTP sy-vline 
WA_PWBHKCOMIPVH_STR-MATNR sy-vline 
WA_PWBHKCOMIPVH_STR-VENDOR sy-vline 
WA_PWBHKCOMIPVH_STR-CUSTOMER sy-vline 
WA_PWBHKCOMIPVH_STR-BATCH sy-vline 
WA_PWBHKCOMIPVH_STR-EXT_REF sy-vline 
WA_PWBHKCOMIPVH_STR-TKONN_EX sy-vline 
WA_PWBHKCOMIPVH_STR-TCTYP sy-vline 
WA_PWBHKCOMIPVH_STR-TKSACHB sy-vline 
WA_PWBHKCOMIPVH_STR-KUNNR sy-vline 
WA_PWBHKCOMIPVH_STR-ELIFN sy-vline 
WA_PWBHKCOMIPVH_STR-VKORG sy-vline 
WA_PWBHKCOMIPVH_STR-VTWEG sy-vline 
WA_PWBHKCOMIPVH_STR-SPART sy-vline 
WA_PWBHKCOMIPVH_STR-EKORG sy-vline 
WA_PWBHKCOMIPVH_STR-EKGRP sy-vline 
WA_PWBHKCOMIPVH_STR-ERNAM sy-vline 
WA_PWBHKCOMIPVH_STR-ERDAT sy-vline 
WA_PWBHKCOMIPVH_STR-ERZEIT sy-vline 
WA_PWBHKCOMIPVH_STR-AENAM sy-vline 
WA_PWBHKCOMIPVH_STR-AEDAT sy-vline 
WA_PWBHKCOMIPVH_STR-AEZEIT sy-vline 
WA_PWBHKCOMIPVH_STR-TCCAT sy-vline 
WA_PWBHKCOMIPVH_STR-CUSTOMER_BEGRU sy-vline 
WA_PWBHKCOMIPVH_STR-COM_ITEM_CUSTOMER_BEGRU sy-vline 
WA_PWBHKCOMIPVH_STR-VENDOR_BEGRU sy-vline 
WA_PWBHKCOMIPVH_STR-COM_ITEM_SUPPLIER_BEGRU sy-vline      INTO ld_text SEPARATED BY SPACE.

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