ABAP Select data from SAP table PFIAPCSHDISC1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PFIAPCSHDISC1 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 PFIAPCSHDISC1. 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 PFIAPCSHDISC1 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_PFIAPCSHDISC1 TYPE STANDARD TABLE OF PFIAPCSHDISC1,
      WA_PFIAPCSHDISC1 TYPE PFIAPCSHDISC1,
      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: <PFIAPCSHDISC1> TYPE PFIAPCSHDISC1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PFIAPCSHDISC1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PFIAPCSHDISC1
  INTO TABLE IT_PFIAPCSHDISC1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PFIAPCSHDISC1
*  INTO TABLE @DATA(IT_PFIAPCSHDISC12).
*--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_PFIAPCSHDISC1 INDEX 1 INTO DATA(WA_PFIAPCSHDISC12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PFIAPCSHDISC1 ASSIGNING <PFIAPCSHDISC1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PFIAPCSHDISC1>-MANDT = 1.
<PFIAPCSHDISC1>-COMPANYCODE = 1.
<PFIAPCSHDISC1>-ACCOUNTINGDOCUMENT = 1.
<PFIAPCSHDISC1>-FISCALYEAR = 1.
<PFIAPCSHDISC1>-ACCOUNTINGDOCUMENTITEM = 1.

ENDLOOP.

LOOP AT IT_PFIAPCSHDISC1 INTO WA_PFIAPCSHDISC1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PFIAPCSHDISC1-SUPPLIER, sy-vline,
  WA_PFIAPCSHDISC1-PAYMENTBLOCKINGREASON, sy-vline,
  WA_PFIAPCSHDISC1-PAYMENTTERMS, sy-vline,
  WA_PFIAPCSHDISC1-FINANCIALACCOUNTTYPE, sy-vline,
  WA_PFIAPCSHDISC1-ACCOUNTINGDOCUMENTCATEGORY, sy-vline,
  WA_PFIAPCSHDISC1-ISSALESRELATED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PFIAPCSHDISC1 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_PFIAPCSHDISC1 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_PFIAPCSHDISC1 INTO WA_PFIAPCSHDISC1.


*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_PFIAPCSHDISC1-ACCOUNTINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFIAPCSHDISC1-ACCOUNTINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PFIAPCSHDISC1-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFIAPCSHDISC1-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PFIAPCSHDISC1-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFIAPCSHDISC1-SUPPLIER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CLEARINGACCOUNTINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PFIAPCSHDISC1-CLEARINGACCOUNTINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFIAPCSHDISC1-CLEARINGACCOUNTINGDOCUMENT.
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_PFIAPCSHDISC1_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
ACCOUNTINGDOCUMENTITEM TYPE STRING,
SUPPLIER TYPE STRING,
PAYMENTBLOCKINGREASON TYPE STRING,
PAYMENTTERMS TYPE STRING,
FINANCIALACCOUNTTYPE TYPE STRING,
ACCOUNTINGDOCUMENTCATEGORY TYPE STRING,
ISSALESRELATED TYPE STRING,
SPECIALGLCODE TYPE STRING,
CLEARINGACCOUNTINGDOCUMENT TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
DUECALCULATIONBASEDATE TYPE STRING,
CASHDISCOUNT1PERCENT TYPE STRING,
CASHDISCOUNT1DAYS TYPE STRING,
CASHDISCOUNT2PERCENT TYPE STRING,
CASHDISCOUNT2DAYS TYPE STRING,
NETPAYMENTDAYS TYPE STRING,
FIXEDCASHDISCOUNT TYPE STRING,
DEBITCREDITCODE TYPE STRING,
CASHDISCOUNTAMOUNTINPUTTED TYPE STRING,
CASHDISCOUNTAMOUNT TYPE STRING,
CASHDISCOUNTBASEAMOUNT TYPE STRING,
GROSSAMOUNT TYPE STRING,
CURRENCY TYPE STRING,
NETDUEDATE TYPE STRING,
CASHDISCOUNT1DUEDATE TYPE STRING,
CASHDISCOUNT2DUEDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PFIAPCSHDISC1_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_PFIAPCSHDISC1_STR-MANDT sy-vline 
WA_PFIAPCSHDISC1_STR-COMPANYCODE sy-vline 
WA_PFIAPCSHDISC1_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_PFIAPCSHDISC1_STR-FISCALYEAR sy-vline 
WA_PFIAPCSHDISC1_STR-ACCOUNTINGDOCUMENTITEM sy-vline 
WA_PFIAPCSHDISC1_STR-SUPPLIER sy-vline 
WA_PFIAPCSHDISC1_STR-PAYMENTBLOCKINGREASON sy-vline 
WA_PFIAPCSHDISC1_STR-PAYMENTTERMS sy-vline 
WA_PFIAPCSHDISC1_STR-FINANCIALACCOUNTTYPE sy-vline 
WA_PFIAPCSHDISC1_STR-ACCOUNTINGDOCUMENTCATEGORY sy-vline 
WA_PFIAPCSHDISC1_STR-ISSALESRELATED sy-vline 
WA_PFIAPCSHDISC1_STR-SPECIALGLCODE sy-vline 
WA_PFIAPCSHDISC1_STR-CLEARINGACCOUNTINGDOCUMENT sy-vline 
WA_PFIAPCSHDISC1_STR-POSTINGDATE sy-vline 
WA_PFIAPCSHDISC1_STR-DOCUMENTDATE sy-vline 
WA_PFIAPCSHDISC1_STR-DUECALCULATIONBASEDATE sy-vline 
WA_PFIAPCSHDISC1_STR-CASHDISCOUNT1PERCENT sy-vline 
WA_PFIAPCSHDISC1_STR-CASHDISCOUNT1DAYS sy-vline 
WA_PFIAPCSHDISC1_STR-CASHDISCOUNT2PERCENT sy-vline 
WA_PFIAPCSHDISC1_STR-CASHDISCOUNT2DAYS sy-vline 
WA_PFIAPCSHDISC1_STR-NETPAYMENTDAYS sy-vline 
WA_PFIAPCSHDISC1_STR-FIXEDCASHDISCOUNT sy-vline 
WA_PFIAPCSHDISC1_STR-DEBITCREDITCODE sy-vline 
WA_PFIAPCSHDISC1_STR-CASHDISCOUNTAMOUNTINPUTTED sy-vline 
WA_PFIAPCSHDISC1_STR-CASHDISCOUNTAMOUNT sy-vline 
WA_PFIAPCSHDISC1_STR-CASHDISCOUNTBASEAMOUNT sy-vline 
WA_PFIAPCSHDISC1_STR-GROSSAMOUNT sy-vline 
WA_PFIAPCSHDISC1_STR-CURRENCY sy-vline 
WA_PFIAPCSHDISC1_STR-NETDUEDATE sy-vline 
WA_PFIAPCSHDISC1_STR-CASHDISCOUNT1DUEDATE sy-vline 
WA_PFIAPCSHDISC1_STR-CASHDISCOUNT2DUEDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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