ABAP Select data from SAP table DIFT_POS_IDENT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DIFT_POS_IDENT
*  INTO TABLE @DATA(IT_DIFT_POS_IDENT2).
*--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_DIFT_POS_IDENT INDEX 1 INTO DATA(WA_DIFT_POS_IDENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DIFT_POS_IDENT>-MANDT = 1.
<DIFT_POS_IDENT>-OS_GUID = 1.
<DIFT_POS_IDENT>-CONTEXT = 1.
<DIFT_POS_IDENT>-IDENTIFIED_OID = 1.
<DIFT_POS_IDENT>-IDENTIFIED_CLS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DIFT_POS_IDENT-VALUATION_AREA, sy-vline,
  WA_DIFT_POS_IDENT-COM_VAL_CLASS, sy-vline,
  WA_DIFT_POS_IDENT-VALUATION_CLASS, sy-vline,
  WA_DIFT_POS_IDENT-ACCOUNTING_CODE, sy-vline,
  WA_DIFT_POS_IDENT-COMPANY_CODE, sy-vline,
  WA_DIFT_POS_IDENT-PRODUCT_TYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DIFT_POS_IDENT 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_DIFT_POS_IDENT 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_DIFT_POS_IDENT INTO WA_DIFT_POS_IDENT.


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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PROFIT_CENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DIFT_POS_IDENT-PROFIT_CENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DIFT_POS_IDENT-PROFIT_CENTER.
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_DIFT_POS_IDENT_STR, 
MANDT TYPE STRING,
OS_GUID TYPE STRING,
CONTEXT TYPE STRING,
IDENTIFIED_OID TYPE STRING,
IDENTIFIED_CLS TYPE STRING,
VALUATION_AREA TYPE STRING,
COM_VAL_CLASS TYPE STRING,
VALUATION_CLASS TYPE STRING,
ACCOUNTING_CODE TYPE STRING,
COMPANY_CODE TYPE STRING,
PRODUCT_TYPE TYPE STRING,
SECURITY_ACCOUNT TYPE STRING,
SECURITY_ID TYPE STRING,
PORTFOLIO TYPE STRING,
TRADER TYPE STRING,
ACCOUNT_GROUP TYPE STRING,
LOANS_CONTRACT TYPE STRING,
POSITION_ACCOUNT TYPE STRING,
FLAG_LONG_SHORT TYPE STRING,
LOT_ID TYPE STRING,
DEAL_NUMBER TYPE STRING,
FUND TYPE STRING,
GRANT_NBR TYPE STRING,
EXTERNAL_ACCOUNT TYPE STRING,
DIFF_CURRENCY TYPE STRING,
HEDGED_ITEM_ID TYPE STRING,
EXPOSURE_ITEM_ID TYPE STRING,
EXPOSURE_SUBITEM_ID TYPE STRING,
WBS_ELEMENT TYPE STRING,
COST_CENTER TYPE STRING,
PROFIT_CENTER TYPE STRING,
FUNCTIONAL_AREA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DIFT_POS_IDENT_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_DIFT_POS_IDENT_STR-MANDT sy-vline 
WA_DIFT_POS_IDENT_STR-OS_GUID sy-vline 
WA_DIFT_POS_IDENT_STR-CONTEXT sy-vline 
WA_DIFT_POS_IDENT_STR-IDENTIFIED_OID sy-vline 
WA_DIFT_POS_IDENT_STR-IDENTIFIED_CLS sy-vline 
WA_DIFT_POS_IDENT_STR-VALUATION_AREA sy-vline 
WA_DIFT_POS_IDENT_STR-COM_VAL_CLASS sy-vline 
WA_DIFT_POS_IDENT_STR-VALUATION_CLASS sy-vline 
WA_DIFT_POS_IDENT_STR-ACCOUNTING_CODE sy-vline 
WA_DIFT_POS_IDENT_STR-COMPANY_CODE sy-vline 
WA_DIFT_POS_IDENT_STR-PRODUCT_TYPE sy-vline 
WA_DIFT_POS_IDENT_STR-SECURITY_ACCOUNT sy-vline 
WA_DIFT_POS_IDENT_STR-SECURITY_ID sy-vline 
WA_DIFT_POS_IDENT_STR-PORTFOLIO sy-vline 
WA_DIFT_POS_IDENT_STR-TRADER sy-vline 
WA_DIFT_POS_IDENT_STR-ACCOUNT_GROUP sy-vline 
WA_DIFT_POS_IDENT_STR-LOANS_CONTRACT sy-vline 
WA_DIFT_POS_IDENT_STR-POSITION_ACCOUNT sy-vline 
WA_DIFT_POS_IDENT_STR-FLAG_LONG_SHORT sy-vline 
WA_DIFT_POS_IDENT_STR-LOT_ID sy-vline 
WA_DIFT_POS_IDENT_STR-DEAL_NUMBER sy-vline 
WA_DIFT_POS_IDENT_STR-FUND sy-vline 
WA_DIFT_POS_IDENT_STR-GRANT_NBR sy-vline 
WA_DIFT_POS_IDENT_STR-EXTERNAL_ACCOUNT sy-vline 
WA_DIFT_POS_IDENT_STR-DIFF_CURRENCY sy-vline 
WA_DIFT_POS_IDENT_STR-HEDGED_ITEM_ID sy-vline 
WA_DIFT_POS_IDENT_STR-EXPOSURE_ITEM_ID sy-vline 
WA_DIFT_POS_IDENT_STR-EXPOSURE_SUBITEM_ID sy-vline 
WA_DIFT_POS_IDENT_STR-WBS_ELEMENT sy-vline 
WA_DIFT_POS_IDENT_STR-COST_CENTER sy-vline 
WA_DIFT_POS_IDENT_STR-PROFIT_CENTER sy-vline 
WA_DIFT_POS_IDENT_STR-FUNCTIONAL_AREA sy-vline      INTO ld_text SEPARATED BY SPACE.

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