ABAP Select data from SAP table PRUREVERSALDOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRUREVERSALDOC
*  INTO TABLE @DATA(IT_PRUREVERSALDOC2).
*--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_PRUREVERSALDOC INDEX 1 INTO DATA(WA_PRUREVERSALDOC2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRUREVERSALDOC-POSTINGDATE, sy-vline,
  WA_PRUREVERSALDOC-TAXREPORTINGDATE, sy-vline,
  WA_PRUREVERSALDOC-DOCUMENTREFERENCEID, sy-vline,
  WA_PRUREVERSALDOC-ISREVERSAL, sy-vline,
  WA_PRUREVERSALDOC-ISREVERSED, sy-vline,
  WA_PRUREVERSALDOC-REVERSEDOCUMENTBKPF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRUREVERSALDOC 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_PRUREVERSALDOC 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_PRUREVERSALDOC INTO WA_PRUREVERSALDOC.


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

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

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

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

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

*Conversion exit GJAHR, internal->external for field REVERSEDOCUMENTFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PRUREVERSALDOC-REVERSEDOCUMENTFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUREVERSALDOC-REVERSEDOCUMENTFISCALYEAR.
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_PRUREVERSALDOC_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
ACCOUNTINGDOCUMENTTYPE TYPE STRING,
POSTINGDATE TYPE STRING,
TAXREPORTINGDATE TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
ISREVERSAL TYPE STRING,
ISREVERSED TYPE STRING,
REVERSEDOCUMENTBKPF TYPE STRING,
REVERSEDOCUMENTFISCALYEARBKPF TYPE STRING,
REVERSEDOCUMENT TYPE STRING,
REVERSEDOCUMENTFISCALYEAR TYPE STRING,
REVERSEDOCUMENTTYPE TYPE STRING,
REVERSEDOCUMENTPOSTINGDATE TYPE STRING,
REVERSEDOCUMENTTAXREPDATE TYPE STRING,
REVERSEDOCUMENTREFERENCEID TYPE STRING,
REVERSEDOCUMENTISREVERSAL TYPE STRING,
REVERSEDOCUMENTISREVERSED TYPE STRING,
LEDGERGROUP TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
RU_REVERSETYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRUREVERSALDOC_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_PRUREVERSALDOC_STR-MANDT sy-vline 
WA_PRUREVERSALDOC_STR-COMPANYCODE sy-vline 
WA_PRUREVERSALDOC_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_PRUREVERSALDOC_STR-FISCALYEAR sy-vline 
WA_PRUREVERSALDOC_STR-ACCOUNTINGDOCUMENTTYPE sy-vline 
WA_PRUREVERSALDOC_STR-POSTINGDATE sy-vline 
WA_PRUREVERSALDOC_STR-TAXREPORTINGDATE sy-vline 
WA_PRUREVERSALDOC_STR-DOCUMENTREFERENCEID sy-vline 
WA_PRUREVERSALDOC_STR-ISREVERSAL sy-vline 
WA_PRUREVERSALDOC_STR-ISREVERSED sy-vline 
WA_PRUREVERSALDOC_STR-REVERSEDOCUMENTBKPF sy-vline 
WA_PRUREVERSALDOC_STR-REVERSEDOCUMENTFISCALYEARBKPF sy-vline 
WA_PRUREVERSALDOC_STR-REVERSEDOCUMENT sy-vline 
WA_PRUREVERSALDOC_STR-REVERSEDOCUMENTFISCALYEAR sy-vline 
WA_PRUREVERSALDOC_STR-REVERSEDOCUMENTTYPE sy-vline 
WA_PRUREVERSALDOC_STR-REVERSEDOCUMENTPOSTINGDATE sy-vline 
WA_PRUREVERSALDOC_STR-REVERSEDOCUMENTTAXREPDATE sy-vline 
WA_PRUREVERSALDOC_STR-REVERSEDOCUMENTREFERENCEID sy-vline 
WA_PRUREVERSALDOC_STR-REVERSEDOCUMENTISREVERSAL sy-vline 
WA_PRUREVERSALDOC_STR-REVERSEDOCUMENTISREVERSED sy-vline 
WA_PRUREVERSALDOC_STR-LEDGERGROUP sy-vline 
WA_PRUREVERSALDOC_STR-COMPANYCODECURRENCY sy-vline 
WA_PRUREVERSALDOC_STR-RU_REVERSETYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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