ABAP Select data from SAP table PRUCTINV0 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PRUCTINV0 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 PRUCTINV0. 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 PRUCTINV0 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_PRUCTINV0 TYPE STANDARD TABLE OF PRUCTINV0,
      WA_PRUCTINV0 TYPE PRUCTINV0,
      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: <PRUCTINV0> TYPE PRUCTINV0.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PRUCTINV0.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PRUCTINV0
  INTO TABLE IT_PRUCTINV0.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRUCTINV0
*  INTO TABLE @DATA(IT_PRUCTINV02).
*--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_PRUCTINV0 INDEX 1 INTO DATA(WA_PRUCTINV02).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PRUCTINV0 ASSIGNING <PRUCTINV0>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRUCTINV0>-MANDT = 1.
<PRUCTINV0>-COMPANYCODE = 1.
<PRUCTINV0>-ACCOUNTINGDOCUMENT = 1.
<PRUCTINV0>-FISCALYEAR = 1.
<PRUCTINV0>-POSTINGDATE = 1.

ENDLOOP.

LOOP AT IT_PRUCTINV0 INTO WA_PRUCTINV0.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRUCTINV0-TAXREPORTINGDATE, sy-vline,
  WA_PRUCTINV0-ISREVERSAL, sy-vline,
  WA_PRUCTINV0-ISREVERSED, sy-vline,
  WA_PRUCTINV0-REVERSEDOCUMENT, sy-vline,
  WA_PRUCTINV0-REVERSEDOCUMENTFISCALYEAR, sy-vline,
  WA_PRUCTINV0-TAXITEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRUCTINV0 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_PRUCTINV0 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_PRUCTINV0 INTO WA_PRUCTINV0.


*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_PRUCTINV0-ACCOUNTINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUCTINV0-ACCOUNTINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PRUCTINV0-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUCTINV0-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REVERSEDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRUCTINV0-REVERSEDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUCTINV0-REVERSEDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field REVERSEDOCUMENTFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PRUCTINV0-REVERSEDOCUMENTFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUCTINV0-REVERSEDOCUMENTFISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CORRECTIONINVOICE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRUCTINV0-CORRECTIONINVOICE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUCTINV0-CORRECTIONINVOICE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field CORRECTIONINVOICEYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PRUCTINV0-CORRECTIONINVOICEYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUCTINV0-CORRECTIONINVOICEYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field TAXAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_PRUCTINV0-TAXAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUCTINV0-TAXAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORIGINALDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRUCTINV0-ORIGINALDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUCTINV0-ORIGINALDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field ORIGINALDOCUMENTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PRUCTINV0-ORIGINALDOCUMENTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUCTINV0-ORIGINALDOCUMENTYEAR.
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_PRUCTINV0_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
POSTINGDATE TYPE STRING,
TAXREPORTINGDATE TYPE STRING,
ISREVERSAL TYPE STRING,
ISREVERSED TYPE STRING,
REVERSEDOCUMENT TYPE STRING,
REVERSEDOCUMENTFISCALYEAR TYPE STRING,
TAXITEM TYPE STRING,
TAXCODE TYPE STRING,
INVOICE TYPE STRING,
INVOICEYEAR TYPE STRING,
EXTERNALINVOICE TYPE STRING,
INVOICEDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
CORRECTIONINVOICE TYPE STRING,
CORRECTIONINVOICEYEAR TYPE STRING,
EXTERNALCORRECTIONINVOICE TYPE STRING,
CORRECTIONINVOICEDATE TYPE STRING,
CORRECTIONDATE TYPE STRING,
REVISIONNUMBER TYPE STRING,
REVISIONINVOICEDATE TYPE STRING,
ORIGINALINVOICEREVISIONNUMBER TYPE STRING,
ORIGINALINVOICEREVISIONDATE TYPE STRING,
AMOUNTINTRANSACTIONCURRENCY TYPE STRING,
TAXAMOUNT TYPE STRING,
RU_VATRETURNVERSION TYPE STRING,
RU_VATRETURNSECTIONTYPE TYPE STRING,
RU_VATSUBSCENARIO TYPE STRING,
RU_VATSCENARIO TYPE STRING,
ORIGINALDOCUMENT TYPE STRING,
ORIGINALDOCUMENTYEAR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRUCTINV0_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_PRUCTINV0_STR-MANDT sy-vline 
WA_PRUCTINV0_STR-COMPANYCODE sy-vline 
WA_PRUCTINV0_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_PRUCTINV0_STR-FISCALYEAR sy-vline 
WA_PRUCTINV0_STR-POSTINGDATE sy-vline 
WA_PRUCTINV0_STR-TAXREPORTINGDATE sy-vline 
WA_PRUCTINV0_STR-ISREVERSAL sy-vline 
WA_PRUCTINV0_STR-ISREVERSED sy-vline 
WA_PRUCTINV0_STR-REVERSEDOCUMENT sy-vline 
WA_PRUCTINV0_STR-REVERSEDOCUMENTFISCALYEAR sy-vline 
WA_PRUCTINV0_STR-TAXITEM sy-vline 
WA_PRUCTINV0_STR-TAXCODE sy-vline 
WA_PRUCTINV0_STR-INVOICE sy-vline 
WA_PRUCTINV0_STR-INVOICEYEAR sy-vline 
WA_PRUCTINV0_STR-EXTERNALINVOICE sy-vline 
WA_PRUCTINV0_STR-INVOICEDATE sy-vline 
WA_PRUCTINV0_STR-DOCUMENTDATE sy-vline 
WA_PRUCTINV0_STR-CORRECTIONINVOICE sy-vline 
WA_PRUCTINV0_STR-CORRECTIONINVOICEYEAR sy-vline 
WA_PRUCTINV0_STR-EXTERNALCORRECTIONINVOICE sy-vline 
WA_PRUCTINV0_STR-CORRECTIONINVOICEDATE sy-vline 
WA_PRUCTINV0_STR-CORRECTIONDATE sy-vline 
WA_PRUCTINV0_STR-REVISIONNUMBER sy-vline 
WA_PRUCTINV0_STR-REVISIONINVOICEDATE sy-vline 
WA_PRUCTINV0_STR-ORIGINALINVOICEREVISIONNUMBER sy-vline 
WA_PRUCTINV0_STR-ORIGINALINVOICEREVISIONDATE sy-vline 
WA_PRUCTINV0_STR-AMOUNTINTRANSACTIONCURRENCY sy-vline 
WA_PRUCTINV0_STR-TAXAMOUNT sy-vline 
WA_PRUCTINV0_STR-RU_VATRETURNVERSION sy-vline 
WA_PRUCTINV0_STR-RU_VATRETURNSECTIONTYPE sy-vline 
WA_PRUCTINV0_STR-RU_VATSUBSCENARIO sy-vline 
WA_PRUCTINV0_STR-RU_VATSCENARIO sy-vline 
WA_PRUCTINV0_STR-ORIGINALDOCUMENT sy-vline 
WA_PRUCTINV0_STR-ORIGINALDOCUMENTYEAR sy-vline      INTO ld_text SEPARATED BY SPACE.

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