ABAP Select data from SAP table PHUSTRPINVCHNIT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PHUSTRPINVCHNIT
*  INTO TABLE @DATA(IT_PHUSTRPINVCHNIT2).
*--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_PHUSTRPINVCHNIT INDEX 1 INTO DATA(WA_PHUSTRPINVCHNIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PHUSTRPINVCHNIT>-MANDT = 1.
<PHUSTRPINVCHNIT>-COMPANYCODE = 1.
<PHUSTRPINVCHNIT>-FISCALYEAR = 1.
<PHUSTRPINVCHNIT>-ACCOUNTINGDOCUMENT = 1.
<PHUSTRPINVCHNIT>-REFERENCEDOCUMENTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PHUSTRPINVCHNIT-ORIGINALREFERENCEDOCUMENT, sy-vline,
  WA_PHUSTRPINVCHNIT-LOGICALSYSTEM, sy-vline,
  WA_PHUSTRPINVCHNIT-ISSUEDINVOICEGUID, sy-vline,
  WA_PHUSTRPINVCHNIT-INVOICENUMBER, sy-vline,
  WA_PHUSTRPINVCHNIT-INVOICEDATE, sy-vline,
  WA_PHUSTRPINVCHNIT-ISSUEDINVOICETYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PHUSTRPINVCHNIT 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_PHUSTRPINVCHNIT 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_PHUSTRPINVCHNIT INTO WA_PHUSTRPINVCHNIT.


*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_PHUSTRPINVCHNIT_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
FISCALYEAR TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
REFERENCEDOCUMENTTYPE TYPE STRING,
ORIGINALREFERENCEDOCUMENT TYPE STRING,
LOGICALSYSTEM TYPE STRING,
ISSUEDINVOICEGUID TYPE STRING,
INVOICENUMBER TYPE STRING,
INVOICEDATE TYPE STRING,
ISSUEDINVOICETYPE TYPE STRING,
PREVIOUSAWKEY TYPE STRING,
PREVIOUSAWTYP TYPE STRING,
PREVIOUSAWSYS TYPE STRING,
PRECEEDINGINVOICE TYPE STRING,
TAXREPORTINGDATE TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
TAXFULFILLMENTDATE TYPE STRING,
ROOTNODE TYPE STRING,
ROOTCOMPANYCODE TYPE STRING,
ROOTFISCALYEAR TYPE STRING,
ROOTACCOUNTINGDOCUMENT TYPE STRING,
ROOTINVOICEGUID TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PHUSTRPINVCHNIT_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_PHUSTRPINVCHNIT_STR-MANDT sy-vline 
WA_PHUSTRPINVCHNIT_STR-COMPANYCODE sy-vline 
WA_PHUSTRPINVCHNIT_STR-FISCALYEAR sy-vline 
WA_PHUSTRPINVCHNIT_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_PHUSTRPINVCHNIT_STR-REFERENCEDOCUMENTTYPE sy-vline 
WA_PHUSTRPINVCHNIT_STR-ORIGINALREFERENCEDOCUMENT sy-vline 
WA_PHUSTRPINVCHNIT_STR-LOGICALSYSTEM sy-vline 
WA_PHUSTRPINVCHNIT_STR-ISSUEDINVOICEGUID sy-vline 
WA_PHUSTRPINVCHNIT_STR-INVOICENUMBER sy-vline 
WA_PHUSTRPINVCHNIT_STR-INVOICEDATE sy-vline 
WA_PHUSTRPINVCHNIT_STR-ISSUEDINVOICETYPE sy-vline 
WA_PHUSTRPINVCHNIT_STR-PREVIOUSAWKEY sy-vline 
WA_PHUSTRPINVCHNIT_STR-PREVIOUSAWTYP sy-vline 
WA_PHUSTRPINVCHNIT_STR-PREVIOUSAWSYS sy-vline 
WA_PHUSTRPINVCHNIT_STR-PRECEEDINGINVOICE sy-vline 
WA_PHUSTRPINVCHNIT_STR-TAXREPORTINGDATE sy-vline 
WA_PHUSTRPINVCHNIT_STR-POSTINGDATE sy-vline 
WA_PHUSTRPINVCHNIT_STR-DOCUMENTDATE sy-vline 
WA_PHUSTRPINVCHNIT_STR-TAXFULFILLMENTDATE sy-vline 
WA_PHUSTRPINVCHNIT_STR-ROOTNODE sy-vline 
WA_PHUSTRPINVCHNIT_STR-ROOTCOMPANYCODE sy-vline 
WA_PHUSTRPINVCHNIT_STR-ROOTFISCALYEAR sy-vline 
WA_PHUSTRPINVCHNIT_STR-ROOTACCOUNTINGDOCUMENT sy-vline 
WA_PHUSTRPINVCHNIT_STR-ROOTINVOICEGUID sy-vline 
WA_PHUSTRPINVCHNIT_STR-DOCUMENTREFERENCEID sy-vline      INTO ld_text SEPARATED BY SPACE.

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