ABAP Select data from SAP table MRM_S_REVAL_ITEM into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MRM_S_REVAL_ITEM
*  INTO TABLE @DATA(IT_MRM_S_REVAL_ITEM2).
*--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_MRM_S_REVAL_ITEM INDEX 1 INTO DATA(WA_MRM_S_REVAL_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MRM_S_REVAL_ITEM>-OUTPUTCONTROLAPPLICATIONOBJECT = 1.
<MRM_S_REVAL_ITEM>-PRICINGDATE = 1.
<MRM_S_REVAL_ITEM>-SIGN = 1.
<MRM_S_REVAL_ITEM>-SUPPLIERINVOICEITEM = 1.
<MRM_S_REVAL_ITEM>-INBOUNDDELIVERYNOTE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MRM_S_REVAL_ITEM-INBOUNDDELIVERYNOTEDATE, sy-vline,
  WA_MRM_S_REVAL_ITEM-REFERENCEDOCUMENT, sy-vline,
  WA_MRM_S_REVAL_ITEM-REFERENCEDOCUMENTITEM, sy-vline,
  WA_MRM_S_REVAL_ITEM-REFERENCEDOCUMENTFISCALYEAR, sy-vline,
  WA_MRM_S_REVAL_ITEM-GOODSRECEIPTPOSTINGDATE, sy-vline,
  WA_MRM_S_REVAL_ITEM-SUPLRINVCREVALGRCREATIONDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MRM_S_REVAL_ITEM 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_MRM_S_REVAL_ITEM 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_MRM_S_REVAL_ITEM INTO WA_MRM_S_REVAL_ITEM.


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

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

*Conversion exit CUNIT, internal->external for field PURGDOCORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MRM_S_REVAL_ITEM-PURGDOCORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MRM_S_REVAL_ITEM-PURGDOCORDERQUANTITYUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PURCHASEORDERPRICEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MRM_S_REVAL_ITEM-PURCHASEORDERPRICEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MRM_S_REVAL_ITEM-PURCHASEORDERPRICEUNIT.
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_MRM_S_REVAL_ITEM_STR, 
OUTPUTCONTROLAPPLICATIONOBJECT TYPE STRING,
PRICINGDATE TYPE STRING,
SIGN TYPE STRING,
SUPPLIERINVOICEITEM TYPE STRING,
INBOUNDDELIVERYNOTE TYPE STRING,
INBOUNDDELIVERYNOTEDATE TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
REFERENCEDOCUMENTITEM TYPE STRING,
REFERENCEDOCUMENTFISCALYEAR TYPE STRING,
GOODSRECEIPTPOSTINGDATE TYPE STRING,
SUPLRINVCREVALGRCREATIONDATE TYPE STRING,
QUANTITY TYPE STRING,
PURGDOCORDERQUANTITYUNIT TYPE STRING,
PURGDOCORDERQUANTITYUNITTECHNA TYPE STRING,
QTYINPURCHASEORDERPRICEUNIT TYPE STRING,
PURCHASEORDERPRICEUNIT TYPE STRING,
PURCHASEORDERPRICEUNITTECHNAME TYPE STRING,
SUPLRINVCREVALINVOICEAMT TYPE STRING,
SUPLRINVCREVALREVALUATIONAMT TYPE STRING,
SUPLRINVCREVALDIFFERENCEAMT TYPE STRING,
TAXCODE TYPE STRING,
CURRENCY TYPE STRING,
DUMMY_MMIV_SI_S_ITEM_EEW_PS TYPE STRING,
DUMMY_MMIV_SI_S_ITEM_EEW_TR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MRM_S_REVAL_ITEM_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_MRM_S_REVAL_ITEM_STR-OUTPUTCONTROLAPPLICATIONOBJECT sy-vline 
WA_MRM_S_REVAL_ITEM_STR-PRICINGDATE sy-vline 
WA_MRM_S_REVAL_ITEM_STR-SIGN sy-vline 
WA_MRM_S_REVAL_ITEM_STR-SUPPLIERINVOICEITEM sy-vline 
WA_MRM_S_REVAL_ITEM_STR-INBOUNDDELIVERYNOTE sy-vline 
WA_MRM_S_REVAL_ITEM_STR-INBOUNDDELIVERYNOTEDATE sy-vline 
WA_MRM_S_REVAL_ITEM_STR-REFERENCEDOCUMENT sy-vline 
WA_MRM_S_REVAL_ITEM_STR-REFERENCEDOCUMENTITEM sy-vline 
WA_MRM_S_REVAL_ITEM_STR-REFERENCEDOCUMENTFISCALYEAR sy-vline 
WA_MRM_S_REVAL_ITEM_STR-GOODSRECEIPTPOSTINGDATE sy-vline 
WA_MRM_S_REVAL_ITEM_STR-SUPLRINVCREVALGRCREATIONDATE sy-vline 
WA_MRM_S_REVAL_ITEM_STR-QUANTITY sy-vline 
WA_MRM_S_REVAL_ITEM_STR-PURGDOCORDERQUANTITYUNIT sy-vline 
WA_MRM_S_REVAL_ITEM_STR-PURGDOCORDERQUANTITYUNITTECHNA sy-vline 
WA_MRM_S_REVAL_ITEM_STR-QTYINPURCHASEORDERPRICEUNIT sy-vline 
WA_MRM_S_REVAL_ITEM_STR-PURCHASEORDERPRICEUNIT sy-vline 
WA_MRM_S_REVAL_ITEM_STR-PURCHASEORDERPRICEUNITTECHNAME sy-vline 
WA_MRM_S_REVAL_ITEM_STR-SUPLRINVCREVALINVOICEAMT sy-vline 
WA_MRM_S_REVAL_ITEM_STR-SUPLRINVCREVALREVALUATIONAMT sy-vline 
WA_MRM_S_REVAL_ITEM_STR-SUPLRINVCREVALDIFFERENCEAMT sy-vline 
WA_MRM_S_REVAL_ITEM_STR-TAXCODE sy-vline 
WA_MRM_S_REVAL_ITEM_STR-CURRENCY sy-vline 
WA_MRM_S_REVAL_ITEM_STR-DUMMY_MMIV_SI_S_ITEM_EEW_PS sy-vline 
WA_MRM_S_REVAL_ITEM_STR-DUMMY_MMIV_SI_S_ITEM_EEW_TR sy-vline      INTO ld_text SEPARATED BY SPACE.

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