ABAP Select data from SAP table TDS_ME_CPC_CONTRACTITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TDS_ME_CPC_CONTRACTITEM 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_ME_CPC_CONTRACTITEM. 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_ME_CPC_CONTRACTITEM 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_ME_CPC_CONTRACTITEM TYPE STANDARD TABLE OF TDS_ME_CPC_CONTRACTITEM,
      WA_TDS_ME_CPC_CONTRACTITEM TYPE TDS_ME_CPC_CONTRACTITEM,
      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_ME_CPC_CONTRACTITEM> TYPE TDS_ME_CPC_CONTRACTITEM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_ME_CPC_CONTRACTITEM
*  INTO TABLE @DATA(IT_TDS_ME_CPC_CONTRACTITEM2).
*--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_ME_CPC_CONTRACTITEM INDEX 1 INTO DATA(WA_TDS_ME_CPC_CONTRACTITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_ME_CPC_CONTRACTITEM>-MANDT = 1.
<TDS_ME_CPC_CONTRACTITEM>-CENTRALPURCHASECONTRACT = 1.
<TDS_ME_CPC_CONTRACTITEM>-CENTRALPURCHASECONTRACTITEM = 1.
<TDS_ME_CPC_CONTRACTITEM>-PURCHASECONTRACTITEMTEXT = 1.
<TDS_ME_CPC_CONTRACTITEM>-MATERIAL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_ME_CPC_CONTRACTITEM-ORDERQUANTITYUNITNAME, sy-vline,
  WA_TDS_ME_CPC_CONTRACTITEM-CONTRACTNETPRICEAMOUNT, sy-vline,
  WA_TDS_ME_CPC_CONTRACTITEM-PURCHASECONTRACTPRICEUNIT, sy-vline,
  WA_TDS_ME_CPC_CONTRACTITEM-CONTRACTTARGETVALUE, sy-vline,
  WA_TDS_ME_CPC_CONTRACTITEM-MATERIALREVISIONLEVEL, sy-vline,
  WA_TDS_ME_CPC_CONTRACTITEM-SUPPLIERMATERIALNUMBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_ME_CPC_CONTRACTITEM 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_ME_CPC_CONTRACTITEM 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_ME_CPC_CONTRACTITEM INTO WA_TDS_ME_CPC_CONTRACTITEM.


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

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

*Conversion exit NUMCV, internal->external for field MATERIALREVISIONLEVEL
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_TDS_ME_CPC_CONTRACTITEM-MATERIALREVISIONLEVEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_ME_CPC_CONTRACTITEM-MATERIALREVISIONLEVEL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field PURCHASEOUTLINEAGREEMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TDS_ME_CPC_CONTRACTITEM-PURCHASEOUTLINEAGREEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_ME_CPC_CONTRACTITEM-PURCHASEOUTLINEAGREEMENT.
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_ME_CPC_CONTRACTITEM_STR, 
MANDT TYPE STRING,
CENTRALPURCHASECONTRACT TYPE STRING,
CENTRALPURCHASECONTRACTITEM TYPE STRING,
PURCHASECONTRACTITEMTEXT TYPE STRING,
MATERIAL TYPE STRING,
ORDERQUANTITYUNITNAME TYPE STRING,
CONTRACTNETPRICEAMOUNT TYPE STRING,
PURCHASECONTRACTPRICEUNIT TYPE STRING,
CONTRACTTARGETVALUE TYPE STRING,
MATERIALREVISIONLEVEL TYPE STRING,
SUPPLIERMATERIALNUMBER TYPE STRING,
BASEUNITNAME TYPE STRING,
PLANT TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
GOODSRECIPIENTNAME TYPE STRING,
NETPRICEQUANTITY TYPE STRING,
TARGETQUANTITY TYPE STRING,
UNLOADINGPOINTNAME TYPE STRING,
PURCHASEOUTLINEAGREEMENT TYPE STRING,
PURCHASEOUTLINEAGREEMENTITEM TYPE STRING,
PURCHASINGDOCUMENTORDERQTY TYPE STRING,
CURRENCY TYPE STRING,
ITEMCATEGORY TYPE STRING,
ITEMCATEGORYDESCRIPTION TYPE STRING,
MATERIALGROUP TYPE STRING,
MATERIALGROUPDESCRIPTION TYPE STRING,
TAXCODE TYPE STRING,
SHIPPINGINSTRUCTIONS TYPE STRING,
SHIPPINGINSTRUCTIONSDESCR TYPE STRING,
DUMMY_EKPO_INCL_EEW_PS TYPE STRING,
DUMMY_EKPO_INCL_EEW_TR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_ME_CPC_CONTRACTITEM_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_ME_CPC_CONTRACTITEM_STR-MANDT sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-CENTRALPURCHASECONTRACT sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-CENTRALPURCHASECONTRACTITEM sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-PURCHASECONTRACTITEMTEXT sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-MATERIAL sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-ORDERQUANTITYUNITNAME sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-CONTRACTNETPRICEAMOUNT sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-PURCHASECONTRACTPRICEUNIT sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-CONTRACTTARGETVALUE sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-MATERIALREVISIONLEVEL sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-SUPPLIERMATERIALNUMBER sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-BASEUNITNAME sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-PLANT sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-ORDERQUANTITYUNIT sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-GOODSRECIPIENTNAME sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-NETPRICEQUANTITY sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-TARGETQUANTITY sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-UNLOADINGPOINTNAME sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-PURCHASEOUTLINEAGREEMENT sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-PURCHASEOUTLINEAGREEMENTITEM sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-PURCHASINGDOCUMENTORDERQTY sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-CURRENCY sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-ITEMCATEGORY sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-ITEMCATEGORYDESCRIPTION sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-MATERIALGROUP sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-MATERIALGROUPDESCRIPTION sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-TAXCODE sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-SHIPPINGINSTRUCTIONS sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-SHIPPINGINSTRUCTIONSDESCR sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-DUMMY_EKPO_INCL_EEW_PS sy-vline 
WA_TDS_ME_CPC_CONTRACTITEM_STR-DUMMY_EKPO_INCL_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.