ABAP Select data from SAP table PRUREVERSEDOC1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PRUREVERSEDOC1 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 PRUREVERSEDOC1. 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 PRUREVERSEDOC1 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_PRUREVERSEDOC1 TYPE STANDARD TABLE OF PRUREVERSEDOC1,
      WA_PRUREVERSEDOC1 TYPE PRUREVERSEDOC1,
      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: <PRUREVERSEDOC1> TYPE PRUREVERSEDOC1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PRUREVERSEDOC1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PRUREVERSEDOC1
  INTO TABLE IT_PRUREVERSEDOC1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRUREVERSEDOC1
*  INTO TABLE @DATA(IT_PRUREVERSEDOC12).
*--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_PRUREVERSEDOC1 INDEX 1 INTO DATA(WA_PRUREVERSEDOC12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PRUREVERSEDOC1 ASSIGNING <PRUREVERSEDOC1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRUREVERSEDOC1>-MANDT = 1.
<PRUREVERSEDOC1>-COMPANYCODE = 1.
<PRUREVERSEDOC1>-ACCOUNTINGDOCUMENT = 1.
<PRUREVERSEDOC1>-FISCALYEAR = 1.
<PRUREVERSEDOC1>-LEDGERGROUP = 1.

ENDLOOP.

LOOP AT IT_PRUREVERSEDOC1 INTO WA_PRUREVERSEDOC1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRUREVERSEDOC1-POSTINGDATE, sy-vline,
  WA_PRUREVERSEDOC1-TAXREPORTINGDATE, sy-vline,
  WA_PRUREVERSEDOC1-ISREVERSAL, sy-vline,
  WA_PRUREVERSEDOC1-ISREVERSED, sy-vline,
  WA_PRUREVERSEDOC1-REFERENCEDOCUMENTTYPE, sy-vline,
  WA_PRUREVERSEDOC1-ORIGINALREFERENCEDOCUMENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRUREVERSEDOC1 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_PRUREVERSEDOC1 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_PRUREVERSEDOC1 INTO WA_PRUREVERSEDOC1.


*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_PRUREVERSEDOC1-ACCOUNTINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUREVERSEDOC1-ACCOUNTINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PRUREVERSEDOC1-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUREVERSEDOC1-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REVERSALREFERENCEDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRUREVERSEDOC1-REVERSALREFERENCEDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUREVERSEDOC1-REVERSALREFERENCEDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SENDERLOGICALSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRUREVERSEDOC1-SENDERLOGICALSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUREVERSEDOC1-SENDERLOGICALSYSTEM.
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_PRUREVERSEDOC1_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
LEDGERGROUP TYPE STRING,
POSTINGDATE TYPE STRING,
TAXREPORTINGDATE TYPE STRING,
ISREVERSAL TYPE STRING,
ISREVERSED TYPE STRING,
REFERENCEDOCUMENTTYPE TYPE STRING,
ORIGINALREFERENCEDOCUMENT TYPE STRING,
ORIGINALREFERENCEDOCUMENTNUM TYPE STRING,
ORIGINALREFERENCEDOCUMENTCNTXT TYPE STRING,
REVERSALREFERENCEDOCUMENT TYPE STRING,
REVERSALREFERENCEDOCUMENTCNTXT TYPE STRING,
SENDERLOGICALSYSTEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRUREVERSEDOC1_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_PRUREVERSEDOC1_STR-MANDT sy-vline 
WA_PRUREVERSEDOC1_STR-COMPANYCODE sy-vline 
WA_PRUREVERSEDOC1_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_PRUREVERSEDOC1_STR-FISCALYEAR sy-vline 
WA_PRUREVERSEDOC1_STR-LEDGERGROUP sy-vline 
WA_PRUREVERSEDOC1_STR-POSTINGDATE sy-vline 
WA_PRUREVERSEDOC1_STR-TAXREPORTINGDATE sy-vline 
WA_PRUREVERSEDOC1_STR-ISREVERSAL sy-vline 
WA_PRUREVERSEDOC1_STR-ISREVERSED sy-vline 
WA_PRUREVERSEDOC1_STR-REFERENCEDOCUMENTTYPE sy-vline 
WA_PRUREVERSEDOC1_STR-ORIGINALREFERENCEDOCUMENT sy-vline 
WA_PRUREVERSEDOC1_STR-ORIGINALREFERENCEDOCUMENTNUM sy-vline 
WA_PRUREVERSEDOC1_STR-ORIGINALREFERENCEDOCUMENTCNTXT sy-vline 
WA_PRUREVERSEDOC1_STR-REVERSALREFERENCEDOCUMENT sy-vline 
WA_PRUREVERSEDOC1_STR-REVERSALREFERENCEDOCUMENTCNTXT sy-vline 
WA_PRUREVERSEDOC1_STR-SENDERLOGICALSYSTEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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