ABAP Select data from SAP table PRBLSKDATDUE1A into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PRBLSKDATDUE1A 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 PRBLSKDATDUE1A. 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 PRBLSKDATDUE1A 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_PRBLSKDATDUE1A TYPE STANDARD TABLE OF PRBLSKDATDUE1A,
      WA_PRBLSKDATDUE1A TYPE PRBLSKDATDUE1A,
      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: <PRBLSKDATDUE1A> TYPE PRBLSKDATDUE1A.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PRBLSKDATDUE1A.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PRBLSKDATDUE1A
  INTO TABLE IT_PRBLSKDATDUE1A.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRBLSKDATDUE1A
*  INTO TABLE @DATA(IT_PRBLSKDATDUE1A2).
*--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_PRBLSKDATDUE1A INDEX 1 INTO DATA(WA_PRBLSKDATDUE1A2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PRBLSKDATDUE1A ASSIGNING <PRBLSKDATDUE1A>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRBLSKDATDUE1A>-MANDT = 1.
<PRBLSKDATDUE1A>-COMPANYCODE = 1.
<PRBLSKDATDUE1A>-ACCOUNTINGDOCUMENT = 1.
<PRBLSKDATDUE1A>-ACCOUNTINGDOCUMENTITEM = 1.
<PRBLSKDATDUE1A>-POSTINGFISCALYEAR = 1.

ENDLOOP.

LOOP AT IT_PRBLSKDATDUE1A INTO WA_PRBLSKDATDUE1A.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRBLSKDATDUE1A-INVOICEREFERENCE, sy-vline,
  WA_PRBLSKDATDUE1A-INVOICEITEMREFERENCE, sy-vline,
  WA_PRBLSKDATDUE1A-INVOICEREFERENCEFISCALYEAR, sy-vline,
  WA_PRBLSKDATDUE1A-CLEARINGDATE, sy-vline,
  WA_PRBLSKDATDUE1A-POSTINGDATE, sy-vline,
  WA_PRBLSKDATDUE1A-DOCUMENTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRBLSKDATDUE1A 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_PRBLSKDATDUE1A 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_PRBLSKDATDUE1A INTO WA_PRBLSKDATDUE1A.


*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_PRBLSKDATDUE1A-ACCOUNTINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRBLSKDATDUE1A-ACCOUNTINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field POSTINGFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PRBLSKDATDUE1A-POSTINGFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRBLSKDATDUE1A-POSTINGFISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INVOICEREFERENCE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRBLSKDATDUE1A-INVOICEREFERENCE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRBLSKDATDUE1A-INVOICEREFERENCE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field INVOICEREFERENCEFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PRBLSKDATDUE1A-INVOICEREFERENCEFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRBLSKDATDUE1A-INVOICEREFERENCEFISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CUSTOMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRBLSKDATDUE1A-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRBLSKDATDUE1A-CUSTOMER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GLACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRBLSKDATDUE1A-GLACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRBLSKDATDUE1A-GLACCOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFINVCINVOICEREFERENCE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRBLSKDATDUE1A-REFINVCINVOICEREFERENCE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRBLSKDATDUE1A-REFINVCINVOICEREFERENCE.
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_PRBLSKDATDUE1A_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,
ACCOUNTINGDOCUMENTCATEGORY TYPE STRING,
BUSINESSAREA TYPE STRING,
FISCALPERIOD TYPE STRING,
REPORTINGYEAR TYPE STRING,
REPORTINGPERIOD TYPE STRING,
REPORTINGPERIODSTARTDATE TYPE STRING,
REPORTINGPERIODENDDATE TYPE STRING,
REFINVCDOCUMENTDATE TYPE STRING,
REFINVCFINANCIALACCOUNTTYPE TYPE STRING,
REFINVCDEBITCREDITCODE TYPE STRING,
REFINVCNETPAYMENTDAYS TYPE STRING,
REFINVCCASHDISCOUNT2DAYS TYPE STRING,
REFINVCCASHDISCOUNT1DAYS TYPE STRING,
REFINVCDUECALCULATIONBASEDATE TYPE STRING,
REFINVCINVOICEREFERENCE TYPE STRING,
REFINVCNETDUEDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRBLSKDATDUE1A_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_PRBLSKDATDUE1A_STR-MANDT sy-vline 
WA_PRBLSKDATDUE1A_STR-COMPANYCODE sy-vline 
WA_PRBLSKDATDUE1A_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_PRBLSKDATDUE1A_STR-ACCOUNTINGDOCUMENTITEM sy-vline 
WA_PRBLSKDATDUE1A_STR-POSTINGFISCALYEAR sy-vline 
WA_PRBLSKDATDUE1A_STR-INVOICEREFERENCE sy-vline 
WA_PRBLSKDATDUE1A_STR-INVOICEITEMREFERENCE sy-vline 
WA_PRBLSKDATDUE1A_STR-INVOICEREFERENCEFISCALYEAR sy-vline 
WA_PRBLSKDATDUE1A_STR-CLEARINGDATE sy-vline 
WA_PRBLSKDATDUE1A_STR-POSTINGDATE sy-vline 
WA_PRBLSKDATDUE1A_STR-DOCUMENTDATE sy-vline 
WA_PRBLSKDATDUE1A_STR-NETPAYMENTDAYS sy-vline 
WA_PRBLSKDATDUE1A_STR-CASHDISCOUNT2DAYS sy-vline 
WA_PRBLSKDATDUE1A_STR-CASHDISCOUNT1DAYS sy-vline 
WA_PRBLSKDATDUE1A_STR-DUECALCULATIONBASEDATE sy-vline 
WA_PRBLSKDATDUE1A_STR-FINANCIALACCOUNTTYPE sy-vline 
WA_PRBLSKDATDUE1A_STR-DEBITCREDITCODE sy-vline 
WA_PRBLSKDATDUE1A_STR-CUSTOMER sy-vline 
WA_PRBLSKDATDUE1A_STR-FOLLOWONDOCUMENTTYPE sy-vline 
WA_PRBLSKDATDUE1A_STR-NETDUEDATE sy-vline 
WA_PRBLSKDATDUE1A_STR-SPECIALGLCODE sy-vline 
WA_PRBLSKDATDUE1A_STR-GLACCOUNT sy-vline 
WA_PRBLSKDATDUE1A_STR-COMPANYCODECURRENCY sy-vline 
WA_PRBLSKDATDUE1A_STR-TRANSACTIONCURRENCY sy-vline 
WA_PRBLSKDATDUE1A_STR-AMOUNTINCOMPANYCODECURRENCY sy-vline 
WA_PRBLSKDATDUE1A_STR-POSTINGKEY sy-vline 
WA_PRBLSKDATDUE1A_STR-ACCOUNTINGDOCUMENTCATEGORY sy-vline 
WA_PRBLSKDATDUE1A_STR-BUSINESSAREA sy-vline 
WA_PRBLSKDATDUE1A_STR-FISCALPERIOD sy-vline 
WA_PRBLSKDATDUE1A_STR-REPORTINGYEAR sy-vline 
WA_PRBLSKDATDUE1A_STR-REPORTINGPERIOD sy-vline 
WA_PRBLSKDATDUE1A_STR-REPORTINGPERIODSTARTDATE sy-vline 
WA_PRBLSKDATDUE1A_STR-REPORTINGPERIODENDDATE sy-vline 
WA_PRBLSKDATDUE1A_STR-REFINVCDOCUMENTDATE sy-vline 
WA_PRBLSKDATDUE1A_STR-REFINVCFINANCIALACCOUNTTYPE sy-vline 
WA_PRBLSKDATDUE1A_STR-REFINVCDEBITCREDITCODE sy-vline 
WA_PRBLSKDATDUE1A_STR-REFINVCNETPAYMENTDAYS sy-vline 
WA_PRBLSKDATDUE1A_STR-REFINVCCASHDISCOUNT2DAYS sy-vline 
WA_PRBLSKDATDUE1A_STR-REFINVCCASHDISCOUNT1DAYS sy-vline 
WA_PRBLSKDATDUE1A_STR-REFINVCDUECALCULATIONBASEDATE sy-vline 
WA_PRBLSKDATDUE1A_STR-REFINVCINVOICEREFERENCE sy-vline 
WA_PRBLSKDATDUE1A_STR-REFINVCNETDUEDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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