ABAP Select data from SAP table IMATLDOCITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMATLDOCITEM
*  INTO TABLE @DATA(IT_IMATLDOCITEM2).
*--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_IMATLDOCITEM INDEX 1 INTO DATA(WA_IMATLDOCITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMATLDOCITEM>-MANDT = 1.
<IMATLDOCITEM>-MATERIALDOCUMENT = 1.
<IMATLDOCITEM>-MATERIALDOCUMENTYEAR = 1.
<IMATLDOCITEM>-MATERIALDOCUMENTITEM = 1.
<IMATLDOCITEM>-QUANTITYINDELIVERYQTYUNIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMATLDOCITEM-REFERENCEDOCUMENTNUMBER, sy-vline,
  WA_IMATLDOCITEM-NETPRICEAMOUNT, sy-vline,
  WA_IMATLDOCITEM-ORGANIZATIONBPNAME1, sy-vline,
  WA_IMATLDOCITEM-CITYNAME, sy-vline,
  WA_IMATLDOCITEM-MATERIALDESCRIPTION, sy-vline,
  WA_IMATLDOCITEM-PLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMATLDOCITEM 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_IMATLDOCITEM 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_IMATLDOCITEM INTO WA_IMATLDOCITEM.


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

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

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

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

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

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

*Conversion exit ABPSP, internal->external for field WBSELEMENTINTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_IMATLDOCITEM-WBSELEMENTINTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMATLDOCITEM-WBSELEMENTINTERNALID.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit CUNIT, internal->external for field ORDERPRICEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IMATLDOCITEM-ORDERPRICEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMATLDOCITEM-ORDERPRICEUNIT.
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_IMATLDOCITEM_STR, 
MANDT TYPE STRING,
MATERIALDOCUMENT TYPE STRING,
MATERIALDOCUMENTYEAR TYPE STRING,
MATERIALDOCUMENTITEM TYPE STRING,
QUANTITYINDELIVERYQTYUNIT TYPE STRING,
REFERENCEDOCUMENTNUMBER TYPE STRING,
NETPRICEAMOUNT TYPE STRING,
ORGANIZATIONBPNAME1 TYPE STRING,
CITYNAME TYPE STRING,
MATERIALDESCRIPTION TYPE STRING,
PLANT TYPE STRING,
MATERIAL TYPE STRING,
STORAGELOCATION TYPE STRING,
SUPPLIER TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
BATCH TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
ISSGORRCVGMATERIAL TYPE STRING,
ISSUINGORRECEIVINGPLANT TYPE STRING,
ISSUINGORRECEIVINGSTORAGELOC TYPE STRING,
QUANTITYINBASEUNIT TYPE STRING,
MATERIALBASEUNIT TYPE STRING,
DOCUMENTDATE TYPE STRING,
DELIVERYDOCUMENT TYPE STRING,
DELIVERYDOCUMENTITEM TYPE STRING,
COSTCENTER TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
ORDERPRICEUNIT TYPE STRING,
TOTALGOODSMVTAMTINCCCRCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMATLDOCITEM_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_IMATLDOCITEM_STR-MANDT sy-vline 
WA_IMATLDOCITEM_STR-MATERIALDOCUMENT sy-vline 
WA_IMATLDOCITEM_STR-MATERIALDOCUMENTYEAR sy-vline 
WA_IMATLDOCITEM_STR-MATERIALDOCUMENTITEM sy-vline 
WA_IMATLDOCITEM_STR-QUANTITYINDELIVERYQTYUNIT sy-vline 
WA_IMATLDOCITEM_STR-REFERENCEDOCUMENTNUMBER sy-vline 
WA_IMATLDOCITEM_STR-NETPRICEAMOUNT sy-vline 
WA_IMATLDOCITEM_STR-ORGANIZATIONBPNAME1 sy-vline 
WA_IMATLDOCITEM_STR-CITYNAME sy-vline 
WA_IMATLDOCITEM_STR-MATERIALDESCRIPTION sy-vline 
WA_IMATLDOCITEM_STR-PLANT sy-vline 
WA_IMATLDOCITEM_STR-MATERIAL sy-vline 
WA_IMATLDOCITEM_STR-STORAGELOCATION sy-vline 
WA_IMATLDOCITEM_STR-SUPPLIER sy-vline 
WA_IMATLDOCITEM_STR-PURCHASINGDOCUMENT sy-vline 
WA_IMATLDOCITEM_STR-PURCHASEORDERITEM sy-vline 
WA_IMATLDOCITEM_STR-BATCH sy-vline 
WA_IMATLDOCITEM_STR-WBSELEMENTINTERNALID sy-vline 
WA_IMATLDOCITEM_STR-ISSGORRCVGMATERIAL sy-vline 
WA_IMATLDOCITEM_STR-ISSUINGORRECEIVINGPLANT sy-vline 
WA_IMATLDOCITEM_STR-ISSUINGORRECEIVINGSTORAGELOC sy-vline 
WA_IMATLDOCITEM_STR-QUANTITYINBASEUNIT sy-vline 
WA_IMATLDOCITEM_STR-MATERIALBASEUNIT sy-vline 
WA_IMATLDOCITEM_STR-DOCUMENTDATE sy-vline 
WA_IMATLDOCITEM_STR-DELIVERYDOCUMENT sy-vline 
WA_IMATLDOCITEM_STR-DELIVERYDOCUMENTITEM sy-vline 
WA_IMATLDOCITEM_STR-COSTCENTER sy-vline 
WA_IMATLDOCITEM_STR-REFERENCEDOCUMENT sy-vline 
WA_IMATLDOCITEM_STR-ORDERPRICEUNIT sy-vline 
WA_IMATLDOCITEM_STR-TOTALGOODSMVTAMTINCCCRCY sy-vline 
WA_IMATLDOCITEM_STR-COMPANYCODECURRENCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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