ABAP Select data from SAP table ICFINPOHIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICFINPOHIST
*  INTO TABLE @DATA(IT_ICFINPOHIST2).
*--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_ICFINPOHIST INDEX 1 INTO DATA(WA_ICFINPOHIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICFINPOHIST>-MANDT = 1.
<ICFINPOHIST>-SENDERLOGICALSYSTEM = 1.
<ICFINPOHIST>-CFINPURCHASINGDOCUMENT = 1.
<ICFINPOHIST>-CFINPURCHASINGDOCUMENTITEM = 1.
<ICFINPOHIST>-CFINPURGDOCACCOUNTASSIGNMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICFINPOHIST-PURCHASEORDERTRANSACTIONTYPE, sy-vline,
  WA_ICFINPOHIST-MATERIALDOCUMENTYEAR, sy-vline,
  WA_ICFINPOHIST-CFINMATERIALDOCUMENT, sy-vline,
  WA_ICFINPOHIST-CFINMATERIALDOCUMENTITEM, sy-vline,
  WA_ICFINPOHIST-POSTINGDATE, sy-vline,
  WA_ICFINPOHIST-QUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICFINPOHIST 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_ICFINPOHIST 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_ICFINPOHIST INTO WA_ICFINPOHIST.


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

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

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

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

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

*Conversion exit CUNIT, internal->external for field ORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ICFINPOHIST-ORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICFINPOHIST-ORDERQUANTITYUNIT.
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_ICFINPOHIST_STR, 
MANDT TYPE STRING,
SENDERLOGICALSYSTEM TYPE STRING,
CFINPURCHASINGDOCUMENT TYPE STRING,
CFINPURCHASINGDOCUMENTITEM TYPE STRING,
CFINPURGDOCACCOUNTASSIGNMENT TYPE STRING,
PURCHASEORDERTRANSACTIONTYPE TYPE STRING,
MATERIALDOCUMENTYEAR TYPE STRING,
CFINMATERIALDOCUMENT TYPE STRING,
CFINMATERIALDOCUMENTITEM TYPE STRING,
POSTINGDATE TYPE STRING,
QUANTITY TYPE STRING,
PURORDAMOUNTINCOMPANYCODECRCY TYPE STRING,
PURCHASEORDERAMOUNT TYPE STRING,
CURRENCY TYPE STRING,
DEBITCREDITCODE TYPE STRING,
ACCOUNTINGDOCUMENTCREATIONDATE TYPE STRING,
TIMEENTRY TYPE STRING,
MATERIAL TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICFINPOHIST_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_ICFINPOHIST_STR-MANDT sy-vline 
WA_ICFINPOHIST_STR-SENDERLOGICALSYSTEM sy-vline 
WA_ICFINPOHIST_STR-CFINPURCHASINGDOCUMENT sy-vline 
WA_ICFINPOHIST_STR-CFINPURCHASINGDOCUMENTITEM sy-vline 
WA_ICFINPOHIST_STR-CFINPURGDOCACCOUNTASSIGNMENT sy-vline 
WA_ICFINPOHIST_STR-PURCHASEORDERTRANSACTIONTYPE sy-vline 
WA_ICFINPOHIST_STR-MATERIALDOCUMENTYEAR sy-vline 
WA_ICFINPOHIST_STR-CFINMATERIALDOCUMENT sy-vline 
WA_ICFINPOHIST_STR-CFINMATERIALDOCUMENTITEM sy-vline 
WA_ICFINPOHIST_STR-POSTINGDATE sy-vline 
WA_ICFINPOHIST_STR-QUANTITY sy-vline 
WA_ICFINPOHIST_STR-PURORDAMOUNTINCOMPANYCODECRCY sy-vline 
WA_ICFINPOHIST_STR-PURCHASEORDERAMOUNT sy-vline 
WA_ICFINPOHIST_STR-CURRENCY sy-vline 
WA_ICFINPOHIST_STR-DEBITCREDITCODE sy-vline 
WA_ICFINPOHIST_STR-ACCOUNTINGDOCUMENTCREATIONDATE sy-vline 
WA_ICFINPOHIST_STR-TIMEENTRY sy-vline 
WA_ICFINPOHIST_STR-MATERIAL sy-vline 
WA_ICFINPOHIST_STR-COMPANYCODECURRENCY sy-vline 
WA_ICFINPOHIST_STR-ORDERQUANTITYUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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