ABAP Select data from SAP table PRUINVOICECLR03A into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PRUINVOICECLR03A 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 PRUINVOICECLR03A. 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 PRUINVOICECLR03A 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_PRUINVOICECLR03A TYPE STANDARD TABLE OF PRUINVOICECLR03A,
      WA_PRUINVOICECLR03A TYPE PRUINVOICECLR03A,
      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: <PRUINVOICECLR03A> TYPE PRUINVOICECLR03A.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PRUINVOICECLR03A.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PRUINVOICECLR03A
  INTO TABLE IT_PRUINVOICECLR03A.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRUINVOICECLR03A
*  INTO TABLE @DATA(IT_PRUINVOICECLR03A2).
*--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_PRUINVOICECLR03A INDEX 1 INTO DATA(WA_PRUINVOICECLR03A2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PRUINVOICECLR03A ASSIGNING <PRUINVOICECLR03A>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRUINVOICECLR03A>-MANDT = 1.
<PRUINVOICECLR03A>-COMPANYCODE = 1.
<PRUINVOICECLR03A>-INVOICE = 1.
<PRUINVOICECLR03A>-INVOICEFISCALYEAR = 1.
<PRUINVOICECLR03A>-CHILDDOCUMENT = 1.

ENDLOOP.

LOOP AT IT_PRUINVOICECLR03A INTO WA_PRUINVOICECLR03A.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRUINVOICECLR03A-CHILDDOCUMENTFISCALYEAR, sy-vline,
  WA_PRUINVOICECLR03A-CLEARINGTYPE, sy-vline,
  WA_PRUINVOICECLR03A-CHILDDOCUMENTAMOUNTSIGN, sy-vline,
  WA_PRUINVOICECLR03A-CHILDDOCLINECLRNGACCOUNTINGDOC, sy-vline,
  WA_PRUINVOICECLR03A-CHILDDOCLINECLRNGDOCFISCALYEAR, sy-vline,
  WA_PRUINVOICECLR03A-CHILDDOCLINEINVOICEREFERENCE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRUINVOICECLR03A 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_PRUINVOICECLR03A 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_PRUINVOICECLR03A INTO WA_PRUINVOICECLR03A.


*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 INVOICE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRUINVOICECLR03A-INVOICE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUINVOICECLR03A-INVOICE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field INVOICEFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PRUINVOICECLR03A-INVOICEFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUINVOICECLR03A-INVOICEFISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CHILDDOCLINECLRNGACCOUNTINGDOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRUINVOICECLR03A-CHILDDOCLINECLRNGACCOUNTINGDOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUINVOICECLR03A-CHILDDOCLINECLRNGACCOUNTINGDOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field CHILDDOCLINECLRNGDOCFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PRUINVOICECLR03A-CHILDDOCLINECLRNGDOCFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUINVOICECLR03A-CHILDDOCLINECLRNGDOCFISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CHILDDOCLINEINVOICEREFERENCE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRUINVOICECLR03A-CHILDDOCLINEINVOICEREFERENCE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUINVOICECLR03A-CHILDDOCLINEINVOICEREFERENCE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field CHILDDOCLINEINVREFERFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PRUINVOICECLR03A-CHILDDOCLINEINVREFERFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUINVOICECLR03A-CHILDDOCLINEINVREFERFISCALYEAR.
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_PRUINVOICECLR03A_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
INVOICE TYPE STRING,
INVOICEFISCALYEAR TYPE STRING,
CHILDDOCUMENT TYPE STRING,
CHILDDOCUMENTFISCALYEAR TYPE STRING,
CLEARINGTYPE TYPE STRING,
CHILDDOCUMENTAMOUNTSIGN TYPE STRING,
CHILDDOCLINECLRNGACCOUNTINGDOC TYPE STRING,
CHILDDOCLINECLRNGDOCFISCALYEAR TYPE STRING,
CHILDDOCLINEINVOICEREFERENCE TYPE STRING,
CHILDDOCLINEINVREFERFISCALYEAR TYPE STRING,
CHILDDOCLINEAMOUNTSIGN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRUINVOICECLR03A_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_PRUINVOICECLR03A_STR-MANDT sy-vline 
WA_PRUINVOICECLR03A_STR-COMPANYCODE sy-vline 
WA_PRUINVOICECLR03A_STR-INVOICE sy-vline 
WA_PRUINVOICECLR03A_STR-INVOICEFISCALYEAR sy-vline 
WA_PRUINVOICECLR03A_STR-CHILDDOCUMENT sy-vline 
WA_PRUINVOICECLR03A_STR-CHILDDOCUMENTFISCALYEAR sy-vline 
WA_PRUINVOICECLR03A_STR-CLEARINGTYPE sy-vline 
WA_PRUINVOICECLR03A_STR-CHILDDOCUMENTAMOUNTSIGN sy-vline 
WA_PRUINVOICECLR03A_STR-CHILDDOCLINECLRNGACCOUNTINGDOC sy-vline 
WA_PRUINVOICECLR03A_STR-CHILDDOCLINECLRNGDOCFISCALYEAR sy-vline 
WA_PRUINVOICECLR03A_STR-CHILDDOCLINEINVOICEREFERENCE sy-vline 
WA_PRUINVOICECLR03A_STR-CHILDDOCLINEINVREFERFISCALYEAR sy-vline 
WA_PRUINVOICECLR03A_STR-CHILDDOCLINEAMOUNTSIGN sy-vline      INTO ld_text SEPARATED BY SPACE.

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