ABAP Select data from SAP table TDS_MRM_COMP_PLANT_ITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TDS_MRM_COMP_PLANT_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 TDS_MRM_COMP_PLANT_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 TDS_MRM_COMP_PLANT_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_TDS_MRM_COMP_PLANT_ITEM TYPE STANDARD TABLE OF TDS_MRM_COMP_PLANT_ITEM,
      WA_TDS_MRM_COMP_PLANT_ITEM TYPE TDS_MRM_COMP_PLANT_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: <TDS_MRM_COMP_PLANT_ITEM> TYPE TDS_MRM_COMP_PLANT_ITEM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_MRM_COMP_PLANT_ITEM
*  INTO TABLE @DATA(IT_TDS_MRM_COMP_PLANT_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_TDS_MRM_COMP_PLANT_ITEM INDEX 1 INTO DATA(WA_TDS_MRM_COMP_PLANT_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_MRM_COMP_PLANT_ITEM>-OUTPUTCONTROLAPPLICATIONOBJECT = 1.
<TDS_MRM_COMP_PLANT_ITEM>-PLANT = 1.
<TDS_MRM_COMP_PLANT_ITEM>-SUPPLIERINVOICE = 1.
<TDS_MRM_COMP_PLANT_ITEM>-FISCALYEAR = 1.
<TDS_MRM_COMP_PLANT_ITEM>-SUPPLIERINVOICEITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_MRM_COMP_PLANT_ITEM-INTERNATIONALARTICLENUMBER, sy-vline,
  WA_TDS_MRM_COMP_PLANT_ITEM-SUPPLIERMATERIALNUMBER, sy-vline,
  WA_TDS_MRM_COMP_PLANT_ITEM-MATERIAL, sy-vline,
  WA_TDS_MRM_COMP_PLANT_ITEM-MATERIALNAME, sy-vline,
  WA_TDS_MRM_COMP_PLANT_ITEM-QUANTITY, sy-vline,
  WA_TDS_MRM_COMP_PLANT_ITEM-QUANTITYASPERINVOICINGPARTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_MRM_COMP_PLANT_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_TDS_MRM_COMP_PLANT_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_TDS_MRM_COMP_PLANT_ITEM INTO WA_TDS_MRM_COMP_PLANT_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 SUPPLIERINVOICE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TDS_MRM_COMP_PLANT_ITEM-SUPPLIERINVOICE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_MRM_COMP_PLANT_ITEM-SUPPLIERINVOICE.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit EAN11, internal->external for field INTERNATIONALARTICLENUMBER
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_TDS_MRM_COMP_PLANT_ITEM-INTERNATIONALARTICLENUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_MRM_COMP_PLANT_ITEM-INTERNATIONALARTICLENUMBER.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field PURCHASEORDERPRICEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_TDS_MRM_COMP_PLANT_ITEM-PURCHASEORDERPRICEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_MRM_COMP_PLANT_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_TDS_MRM_COMP_PLANT_ITEM_STR, 
OUTPUTCONTROLAPPLICATIONOBJECT TYPE STRING,
PLANT TYPE STRING,
SUPPLIERINVOICE TYPE STRING,
FISCALYEAR TYPE STRING,
SUPPLIERINVOICEITEM TYPE STRING,
INTERNATIONALARTICLENUMBER TYPE STRING,
SUPPLIERMATERIALNUMBER TYPE STRING,
MATERIAL TYPE STRING,
MATERIALNAME TYPE STRING,
QUANTITY TYPE STRING,
QUANTITYASPERINVOICINGPARTY TYPE STRING,
PURGDOCORDERQUANTITYUNIT TYPE STRING,
PURGDOCORDERQUANTITYUNITTECHNA TYPE STRING,
SUPPLIERINVOICEITEMPRICE TYPE STRING,
PRICEASPERINVOICINGPARTY TYPE STRING,
SUPLRINVCITMMANUALLYREDUCEDAMT TYPE STRING,
PRICEUNITQTY TYPE STRING,
PURCHASEORDERPRICEUNIT TYPE STRING,
PURCHASEORDERPRICEUNITTECHNAME TYPE STRING,
ITEMHASDIFFERENTPRICEUNIT TYPE STRING,
SUPLRINVCCOMPLAINTREASONDESC 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_TDS_MRM_COMP_PLANT_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_TDS_MRM_COMP_PLANT_ITEM_STR-OUTPUTCONTROLAPPLICATIONOBJECT sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-PLANT sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-SUPPLIERINVOICE sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-FISCALYEAR sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-SUPPLIERINVOICEITEM sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-INTERNATIONALARTICLENUMBER sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-SUPPLIERMATERIALNUMBER sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-MATERIAL sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-MATERIALNAME sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-QUANTITY sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-QUANTITYASPERINVOICINGPARTY sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-PURGDOCORDERQUANTITYUNIT sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-PURGDOCORDERQUANTITYUNITTECHNA sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-SUPPLIERINVOICEITEMPRICE sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-PRICEASPERINVOICINGPARTY sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-SUPLRINVCITMMANUALLYREDUCEDAMT sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-PRICEUNITQTY sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-PURCHASEORDERPRICEUNIT sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-PURCHASEORDERPRICEUNITTECHNAME sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-ITEMHASDIFFERENTPRICEUNIT sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-SUPLRINVCCOMPLAINTREASONDESC sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-CURRENCY sy-vline 
WA_TDS_MRM_COMP_PLANT_ITEM_STR-DUMMY_MMIV_SI_S_ITEM_EEW_PS sy-vline 
WA_TDS_MRM_COMP_PLANT_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.