ABAP Select data from SAP table PBE_REVNRECGN_DETS_S into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PBE_REVNRECGN_DETS_S
*  INTO TABLE @DATA(IT_PBE_REVNRECGN_DETS_S2).
*--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_PBE_REVNRECGN_DETS_S INDEX 1 INTO DATA(WA_PBE_REVNRECGN_DETS_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PBE_REVNRECGN_DETS_S>-BILLINGWBSELEMENTINTERNALID = 1.
<PBE_REVNRECGN_DETS_S>-WBSELEMENTINTERNALID = 1.
<PBE_REVNRECGN_DETS_S>-MATERIAL = 1.
<PBE_REVNRECGN_DETS_S>-PERSONNEL = 1.
<PBE_REVNRECGN_DETS_S>-QUANTITY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PBE_REVNRECGN_DETS_S-QUANTITYUNIT, sy-vline,
  WA_PBE_REVNRECGN_DETS_S-REVENUEAMTINDOCCRCY, sy-vline,
  WA_PBE_REVNRECGN_DETS_S-DOCUMENTCURRENCY, sy-vline,
  WA_PBE_REVNRECGN_DETS_S-AMOUNTINTRANSACCRCY, sy-vline,
  WA_PBE_REVNRECGN_DETS_S-TRANSACTIONCURRENCY, sy-vline,
  WA_PBE_REVNRECGN_DETS_S-PRICINGCONDITIONS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PBE_REVNRECGN_DETS_S 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_PBE_REVNRECGN_DETS_S 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_PBE_REVNRECGN_DETS_S INTO WA_PBE_REVNRECGN_DETS_S.


*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 MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PBE_REVNRECGN_DETS_S-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PBE_REVNRECGN_DETS_S-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field QUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PBE_REVNRECGN_DETS_S-QUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PBE_REVNRECGN_DETS_S-QUANTITYUNIT.
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_PBE_REVNRECGN_DETS_S_STR, 
BILLINGWBSELEMENTINTERNALID TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
MATERIAL TYPE STRING,
PERSONNEL TYPE STRING,
QUANTITY TYPE STRING,
QUANTITYUNIT TYPE STRING,
REVENUEAMTINDOCCRCY TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
AMOUNTINTRANSACCRCY TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
PRICINGCONDITIONS TYPE STRING,
POSTINGDATETYPE TYPE STRING,
JOURNALENTRY_DETAILS TYPE STRING,
REVENUEHASCHANGED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PBE_REVNRECGN_DETS_S_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_PBE_REVNRECGN_DETS_S_STR-BILLINGWBSELEMENTINTERNALID sy-vline 
WA_PBE_REVNRECGN_DETS_S_STR-WBSELEMENTINTERNALID sy-vline 
WA_PBE_REVNRECGN_DETS_S_STR-MATERIAL sy-vline 
WA_PBE_REVNRECGN_DETS_S_STR-PERSONNEL sy-vline 
WA_PBE_REVNRECGN_DETS_S_STR-QUANTITY sy-vline 
WA_PBE_REVNRECGN_DETS_S_STR-QUANTITYUNIT sy-vline 
WA_PBE_REVNRECGN_DETS_S_STR-REVENUEAMTINDOCCRCY sy-vline 
WA_PBE_REVNRECGN_DETS_S_STR-DOCUMENTCURRENCY sy-vline 
WA_PBE_REVNRECGN_DETS_S_STR-AMOUNTINTRANSACCRCY sy-vline 
WA_PBE_REVNRECGN_DETS_S_STR-TRANSACTIONCURRENCY sy-vline 
WA_PBE_REVNRECGN_DETS_S_STR-PRICINGCONDITIONS sy-vline 
WA_PBE_REVNRECGN_DETS_S_STR-POSTINGDATETYPE sy-vline 
WA_PBE_REVNRECGN_DETS_S_STR-JOURNALENTRY_DETAILS sy-vline 
WA_PBE_REVNRECGN_DETS_S_STR-REVENUEHASCHANGED sy-vline      INTO ld_text SEPARATED BY SPACE.

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