ABAP Select data from SAP table PHUMMINVITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PHUMMINVITEM
*  INTO TABLE @DATA(IT_PHUMMINVITEM2).
*--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_PHUMMINVITEM INDEX 1 INTO DATA(WA_PHUMMINVITEM2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PHUMMINVITEM-DOCUMENTDATE, sy-vline,
  WA_PHUMMINVITEM-POSTINGDATE, sy-vline,
  WA_PHUMMINVITEM-TAXREPORTINGDATE, sy-vline,
  WA_PHUMMINVITEM-TAXCODE, sy-vline,
  WA_PHUMMINVITEM-REFERENCEDOCUMENTTYPE, sy-vline,
  WA_PHUMMINVITEM-DOCUMENTREFERENCEID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PHUMMINVITEM 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_PHUMMINVITEM 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_PHUMMINVITEM INTO WA_PHUMMINVITEM.


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

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PHUMMINVITEM-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PHUMMINVITEM-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AC112, internal->external for field TAXRATE
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_PHUMMINVITEM-TAXRATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PHUMMINVITEM-TAXRATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFERENCEDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PHUMMINVITEM-REFERENCEDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PHUMMINVITEM-REFERENCEDOCUMENT.
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_PHUMMINVITEM_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
ACCOUNTINGDOCUMENTITEM TYPE STRING,
DOCUMENTDATE TYPE STRING,
POSTINGDATE TYPE STRING,
TAXREPORTINGDATE TYPE STRING,
TAXCODE TYPE STRING,
REFERENCEDOCUMENTTYPE TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
INVOICEREFERENCE TYPE STRING,
INVOICEREFERENCEFISCALYEAR TYPE STRING,
ORIGINALREFERENCEDOCUMENT TYPE STRING,
TAXBASEAMOUNTINCOCODECRCY TYPE STRING,
TAXAMOUNTINCOCODECRCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
FINANCIALACCOUNTTYPE TYPE STRING,
BUSINESSPARTNER TYPE STRING,
TAXRATE TYPE STRING,
VATREGISTRATION TYPE STRING,
BUSINESSPARTNERNAME TYPE STRING,
TAXNUMBER1 TYPE STRING,
TAXNUMBER2 TYPE STRING,
TAXNUMBER3 TYPE STRING,
TAXNUMBER4 TYPE STRING,
TAXNUMBER5 TYPE STRING,
COUNTRY TYPE STRING,
INVOICE TYPE STRING,
INVOICEDATE TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
PREDECESSORREFERENCEDOCUMENT TYPE STRING,
PREDECESSORREFERENCEDOCTYPE TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PHUMMINVITEM_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_PHUMMINVITEM_STR-MANDT sy-vline 
WA_PHUMMINVITEM_STR-COMPANYCODE sy-vline 
WA_PHUMMINVITEM_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_PHUMMINVITEM_STR-FISCALYEAR sy-vline 
WA_PHUMMINVITEM_STR-ACCOUNTINGDOCUMENTITEM sy-vline 
WA_PHUMMINVITEM_STR-DOCUMENTDATE sy-vline 
WA_PHUMMINVITEM_STR-POSTINGDATE sy-vline 
WA_PHUMMINVITEM_STR-TAXREPORTINGDATE sy-vline 
WA_PHUMMINVITEM_STR-TAXCODE sy-vline 
WA_PHUMMINVITEM_STR-REFERENCEDOCUMENTTYPE sy-vline 
WA_PHUMMINVITEM_STR-DOCUMENTREFERENCEID sy-vline 
WA_PHUMMINVITEM_STR-INVOICEREFERENCE sy-vline 
WA_PHUMMINVITEM_STR-INVOICEREFERENCEFISCALYEAR sy-vline 
WA_PHUMMINVITEM_STR-ORIGINALREFERENCEDOCUMENT sy-vline 
WA_PHUMMINVITEM_STR-TAXBASEAMOUNTINCOCODECRCY sy-vline 
WA_PHUMMINVITEM_STR-TAXAMOUNTINCOCODECRCY sy-vline 
WA_PHUMMINVITEM_STR-COMPANYCODECURRENCY sy-vline 
WA_PHUMMINVITEM_STR-FINANCIALACCOUNTTYPE sy-vline 
WA_PHUMMINVITEM_STR-BUSINESSPARTNER sy-vline 
WA_PHUMMINVITEM_STR-TAXRATE sy-vline 
WA_PHUMMINVITEM_STR-VATREGISTRATION sy-vline 
WA_PHUMMINVITEM_STR-BUSINESSPARTNERNAME sy-vline 
WA_PHUMMINVITEM_STR-TAXNUMBER1 sy-vline 
WA_PHUMMINVITEM_STR-TAXNUMBER2 sy-vline 
WA_PHUMMINVITEM_STR-TAXNUMBER3 sy-vline 
WA_PHUMMINVITEM_STR-TAXNUMBER4 sy-vline 
WA_PHUMMINVITEM_STR-TAXNUMBER5 sy-vline 
WA_PHUMMINVITEM_STR-COUNTRY sy-vline 
WA_PHUMMINVITEM_STR-INVOICE sy-vline 
WA_PHUMMINVITEM_STR-INVOICEDATE sy-vline 
WA_PHUMMINVITEM_STR-REFERENCEDOCUMENT sy-vline 
WA_PHUMMINVITEM_STR-PREDECESSORREFERENCEDOCUMENT sy-vline 
WA_PHUMMINVITEM_STR-PREDECESSORREFERENCEDOCTYPE sy-vline 
WA_PHUMMINVITEM_STR-AUTHORIZATIONGROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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