ABAP Select data from SAP table PRBLSKDATDUE3A into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PRBLSKDATDUE3A 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 PRBLSKDATDUE3A. 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 PRBLSKDATDUE3A 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_PRBLSKDATDUE3A TYPE STANDARD TABLE OF PRBLSKDATDUE3A,
      WA_PRBLSKDATDUE3A TYPE PRBLSKDATDUE3A,
      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: <PRBLSKDATDUE3A> TYPE PRBLSKDATDUE3A.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PRBLSKDATDUE3A.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PRBLSKDATDUE3A
  INTO TABLE IT_PRBLSKDATDUE3A.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRBLSKDATDUE3A
*  INTO TABLE @DATA(IT_PRBLSKDATDUE3A2).
*--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_PRBLSKDATDUE3A INDEX 1 INTO DATA(WA_PRBLSKDATDUE3A2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PRBLSKDATDUE3A ASSIGNING <PRBLSKDATDUE3A>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRBLSKDATDUE3A>-MANDT = 1.
<PRBLSKDATDUE3A>-COMPANYCODE = 1.
<PRBLSKDATDUE3A>-ACCOUNTINGDOCUMENT = 1.
<PRBLSKDATDUE3A>-ACCOUNTINGDOCUMENTITEM = 1.
<PRBLSKDATDUE3A>-POSTINGFISCALYEAR = 1.

ENDLOOP.

LOOP AT IT_PRBLSKDATDUE3A INTO WA_PRBLSKDATDUE3A.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRBLSKDATDUE3A-INVOICEREFERENCE, sy-vline,
  WA_PRBLSKDATDUE3A-INVOICEITEMREFERENCE, sy-vline,
  WA_PRBLSKDATDUE3A-INVOICEREFERENCEFISCALYEAR, sy-vline,
  WA_PRBLSKDATDUE3A-CLEARINGDATE, sy-vline,
  WA_PRBLSKDATDUE3A-POSTINGDATE, sy-vline,
  WA_PRBLSKDATDUE3A-DOCUMENTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRBLSKDATDUE3A 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_PRBLSKDATDUE3A 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_PRBLSKDATDUE3A INTO WA_PRBLSKDATDUE3A.


*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_PRBLSKDATDUE3A-ACCOUNTINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRBLSKDATDUE3A-ACCOUNTINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field POSTINGFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PRBLSKDATDUE3A-POSTINGFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRBLSKDATDUE3A-POSTINGFISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INVOICEREFERENCE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRBLSKDATDUE3A-INVOICEREFERENCE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRBLSKDATDUE3A-INVOICEREFERENCE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field INVOICEREFERENCEFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PRBLSKDATDUE3A-INVOICEREFERENCEFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRBLSKDATDUE3A-INVOICEREFERENCEFISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CUSTOMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRBLSKDATDUE3A-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRBLSKDATDUE3A-CUSTOMER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GLACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRBLSKDATDUE3A-GLACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRBLSKDATDUE3A-GLACCOUNT.
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_PRBLSKDATDUE3A_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
ACCOUNTINGDOCUMENTITEM TYPE STRING,
POSTINGFISCALYEAR TYPE STRING,
INVOICEREFERENCE TYPE STRING,
INVOICEITEMREFERENCE TYPE STRING,
INVOICEREFERENCEFISCALYEAR TYPE STRING,
CLEARINGDATE TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
NETPAYMENTDAYS TYPE STRING,
CASHDISCOUNT2DAYS TYPE STRING,
CASHDISCOUNT1DAYS TYPE STRING,
DUECALCULATIONBASEDATE TYPE STRING,
FINANCIALACCOUNTTYPE TYPE STRING,
DEBITCREDITCODE TYPE STRING,
CUSTOMER TYPE STRING,
FOLLOWONDOCUMENTTYPE TYPE STRING,
NETDUEDATE TYPE STRING,
SPECIALGLCODE TYPE STRING,
GLACCOUNT TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
AMOUNTINCOMPANYCODECURRENCY TYPE STRING,
POSTINGKEY TYPE STRING,
BUSINESSAREA TYPE STRING,
REPORTINGYEAR TYPE STRING,
REPORTINGPERIOD TYPE STRING,
REPORTINGPERIODSTARTDATE TYPE STRING,
REPORTINGPERIODENDDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRBLSKDATDUE3A_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_PRBLSKDATDUE3A_STR-MANDT sy-vline 
WA_PRBLSKDATDUE3A_STR-COMPANYCODE sy-vline 
WA_PRBLSKDATDUE3A_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_PRBLSKDATDUE3A_STR-ACCOUNTINGDOCUMENTITEM sy-vline 
WA_PRBLSKDATDUE3A_STR-POSTINGFISCALYEAR sy-vline 
WA_PRBLSKDATDUE3A_STR-INVOICEREFERENCE sy-vline 
WA_PRBLSKDATDUE3A_STR-INVOICEITEMREFERENCE sy-vline 
WA_PRBLSKDATDUE3A_STR-INVOICEREFERENCEFISCALYEAR sy-vline 
WA_PRBLSKDATDUE3A_STR-CLEARINGDATE sy-vline 
WA_PRBLSKDATDUE3A_STR-POSTINGDATE sy-vline 
WA_PRBLSKDATDUE3A_STR-DOCUMENTDATE sy-vline 
WA_PRBLSKDATDUE3A_STR-NETPAYMENTDAYS sy-vline 
WA_PRBLSKDATDUE3A_STR-CASHDISCOUNT2DAYS sy-vline 
WA_PRBLSKDATDUE3A_STR-CASHDISCOUNT1DAYS sy-vline 
WA_PRBLSKDATDUE3A_STR-DUECALCULATIONBASEDATE sy-vline 
WA_PRBLSKDATDUE3A_STR-FINANCIALACCOUNTTYPE sy-vline 
WA_PRBLSKDATDUE3A_STR-DEBITCREDITCODE sy-vline 
WA_PRBLSKDATDUE3A_STR-CUSTOMER sy-vline 
WA_PRBLSKDATDUE3A_STR-FOLLOWONDOCUMENTTYPE sy-vline 
WA_PRBLSKDATDUE3A_STR-NETDUEDATE sy-vline 
WA_PRBLSKDATDUE3A_STR-SPECIALGLCODE sy-vline 
WA_PRBLSKDATDUE3A_STR-GLACCOUNT sy-vline 
WA_PRBLSKDATDUE3A_STR-COMPANYCODECURRENCY sy-vline 
WA_PRBLSKDATDUE3A_STR-TRANSACTIONCURRENCY sy-vline 
WA_PRBLSKDATDUE3A_STR-AMOUNTINCOMPANYCODECURRENCY sy-vline 
WA_PRBLSKDATDUE3A_STR-POSTINGKEY sy-vline 
WA_PRBLSKDATDUE3A_STR-BUSINESSAREA sy-vline 
WA_PRBLSKDATDUE3A_STR-REPORTINGYEAR sy-vline 
WA_PRBLSKDATDUE3A_STR-REPORTINGPERIOD sy-vline 
WA_PRBLSKDATDUE3A_STR-REPORTINGPERIODSTARTDATE sy-vline 
WA_PRBLSKDATDUE3A_STR-REPORTINGPERIODENDDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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