ABAP Select data from SAP table PAPPFLWSINV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAPPFLWSINV
*  INTO TABLE @DATA(IT_PAPPFLWSINV2).
*--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_PAPPFLWSINV INDEX 1 INTO DATA(WA_PAPPFLWSINV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAPPFLWSINV>-MANDT = 1.
<PAPPFLWSINV>-SUPPLIERINVOICE = 1.
<PAPPFLWSINV>-FISCALYEAR = 1.
<PAPPFLWSINV>-PROCESSFLOWNODEDOCUMENT = 1.
<PAPPFLWSINV>-PROCESSFLOWNODEDOCCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAPPFLWSINV-PROCESSFLOWNODE, sy-vline,
  WA_PAPPFLWSINV-SUPPLIER, sy-vline,
  WA_PAPPFLWSINV-SUPPLIERNAME, sy-vline,
  WA_PAPPFLWSINV-POSTINGDATE, sy-vline,
  WA_PAPPFLWSINV-DOCUMENTDATE, sy-vline,
  WA_PAPPFLWSINV-PAYMENTBLOCKINGREASON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAPPFLWSINV 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_PAPPFLWSINV 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_PAPPFLWSINV INTO WA_PAPPFLWSINV.


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

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

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

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PAPPFLWSINV-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PAPPFLWSINV-SUPPLIER.
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_PAPPFLWSINV_STR, 
MANDT TYPE STRING,
SUPPLIERINVOICE TYPE STRING,
FISCALYEAR TYPE STRING,
PROCESSFLOWNODEDOCUMENT TYPE STRING,
PROCESSFLOWNODEDOCCATEGORY TYPE STRING,
PROCESSFLOWNODE TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLIERNAME TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
PAYMENTBLOCKINGREASON TYPE STRING,
SUPPLIERINVOICEIDBYINVCGPARTY TYPE STRING,
INVOICEGROSSAMOUNT TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
CREATEDBYUSER TYPE STRING,
SUPPLIERINVOICESTATUS TYPE STRING,
FULLNAME TYPE STRING,
ISINVOICE TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
ISENDOFPURPOSEBLOCKED TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAPPFLWSINV_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_PAPPFLWSINV_STR-MANDT sy-vline 
WA_PAPPFLWSINV_STR-SUPPLIERINVOICE sy-vline 
WA_PAPPFLWSINV_STR-FISCALYEAR sy-vline 
WA_PAPPFLWSINV_STR-PROCESSFLOWNODEDOCUMENT sy-vline 
WA_PAPPFLWSINV_STR-PROCESSFLOWNODEDOCCATEGORY sy-vline 
WA_PAPPFLWSINV_STR-PROCESSFLOWNODE sy-vline 
WA_PAPPFLWSINV_STR-SUPPLIER sy-vline 
WA_PAPPFLWSINV_STR-SUPPLIERNAME sy-vline 
WA_PAPPFLWSINV_STR-POSTINGDATE sy-vline 
WA_PAPPFLWSINV_STR-DOCUMENTDATE sy-vline 
WA_PAPPFLWSINV_STR-PAYMENTBLOCKINGREASON sy-vline 
WA_PAPPFLWSINV_STR-SUPPLIERINVOICEIDBYINVCGPARTY sy-vline 
WA_PAPPFLWSINV_STR-INVOICEGROSSAMOUNT sy-vline 
WA_PAPPFLWSINV_STR-DOCUMENTCURRENCY sy-vline 
WA_PAPPFLWSINV_STR-CREATEDBYUSER sy-vline 
WA_PAPPFLWSINV_STR-SUPPLIERINVOICESTATUS sy-vline 
WA_PAPPFLWSINV_STR-FULLNAME sy-vline 
WA_PAPPFLWSINV_STR-ISINVOICE sy-vline 
WA_PAPPFLWSINV_STR-COMPANYCODE sy-vline 
WA_PAPPFLWSINV_STR-COMPANYCODENAME sy-vline 
WA_PAPPFLWSINV_STR-ISENDOFPURPOSEBLOCKED sy-vline 
WA_PAPPFLWSINV_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.