ABAP Select data from SAP table IDBTINVESTNMNL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDBTINVESTNMNL
*  INTO TABLE @DATA(IT_IDBTINVESTNMNL2).
*--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_IDBTINVESTNMNL INDEX 1 INTO DATA(WA_IDBTINVESTNMNL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDBTINVESTNMNL>-MANDT = 1.
<IDBTINVESTNMNL>-COMPANYCODE = 1.
<IDBTINVESTNMNL>-FINANCIALTRANSACTION = 1.
<IDBTINVESTNMNL>-SECURITYACCOUNT = 1.
<IDBTINVESTNMNL>-SECURITYCLASS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDBTINVESTNMNL-SECURITYACCOUNTGROUP, sy-vline,
  WA_IDBTINVESTNMNL-FINANCIALINSTRUMENTPRODUCTTYPE, sy-vline,
  WA_IDBTINVESTNMNL-FINANCIALINSTRTRANSACTIONTYPE, sy-vline,
  WA_IDBTINVESTNMNL-TREASURYFINANCIALOBJECT, sy-vline,
  WA_IDBTINVESTNMNL-COUNTERPARTY, sy-vline,
  WA_IDBTINVESTNMNL-TREASURYCONTRACTTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDBTINVESTNMNL 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_IDBTINVESTNMNL 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_IDBTINVESTNMNL INTO WA_IDBTINVESTNMNL.


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

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

*Conversion exit ALPHA, internal->external for field COUNTERPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDBTINVESTNMNL-COUNTERPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDBTINVESTNMNL-COUNTERPARTY.
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_IDBTINVESTNMNL_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
FINANCIALTRANSACTION TYPE STRING,
SECURITYACCOUNT TYPE STRING,
SECURITYCLASS TYPE STRING,
SECURITYACCOUNTGROUP TYPE STRING,
FINANCIALINSTRUMENTPRODUCTTYPE TYPE STRING,
FINANCIALINSTRTRANSACTIONTYPE TYPE STRING,
TREASURYFINANCIALOBJECT TYPE STRING,
COUNTERPARTY TYPE STRING,
TREASURYCONTRACTTYPE TYPE STRING,
PORTFOLIO TYPE STRING,
FINANCIALINSTRPRODUCTCATEGORY TYPE STRING,
TRSYCSHFLOWDEBTINVMTCODE TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
NOMINALCURRENCY TYPE STRING,
POSITIONCURRENCY TYPE STRING,
NOMINALAMOUNTINNOMINALCURRENCY TYPE STRING,
BOOKVALUEAMTINPOSITIONCURRENCY TYPE STRING,
NOMINALAMOUNTINREPORTINGCRCY TYPE STRING,
BOOKVALUEAMOUNTINREPORTINGCRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDBTINVESTNMNL_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_IDBTINVESTNMNL_STR-MANDT sy-vline 
WA_IDBTINVESTNMNL_STR-COMPANYCODE sy-vline 
WA_IDBTINVESTNMNL_STR-FINANCIALTRANSACTION sy-vline 
WA_IDBTINVESTNMNL_STR-SECURITYACCOUNT sy-vline 
WA_IDBTINVESTNMNL_STR-SECURITYCLASS sy-vline 
WA_IDBTINVESTNMNL_STR-SECURITYACCOUNTGROUP sy-vline 
WA_IDBTINVESTNMNL_STR-FINANCIALINSTRUMENTPRODUCTTYPE sy-vline 
WA_IDBTINVESTNMNL_STR-FINANCIALINSTRTRANSACTIONTYPE sy-vline 
WA_IDBTINVESTNMNL_STR-TREASURYFINANCIALOBJECT sy-vline 
WA_IDBTINVESTNMNL_STR-COUNTERPARTY sy-vline 
WA_IDBTINVESTNMNL_STR-TREASURYCONTRACTTYPE sy-vline 
WA_IDBTINVESTNMNL_STR-PORTFOLIO sy-vline 
WA_IDBTINVESTNMNL_STR-FINANCIALINSTRPRODUCTCATEGORY sy-vline 
WA_IDBTINVESTNMNL_STR-TRSYCSHFLOWDEBTINVMTCODE sy-vline 
WA_IDBTINVESTNMNL_STR-TRANSACTIONCURRENCY sy-vline 
WA_IDBTINVESTNMNL_STR-DISPLAYCURRENCY sy-vline 
WA_IDBTINVESTNMNL_STR-NOMINALCURRENCY sy-vline 
WA_IDBTINVESTNMNL_STR-POSITIONCURRENCY sy-vline 
WA_IDBTINVESTNMNL_STR-NOMINALAMOUNTINNOMINALCURRENCY sy-vline 
WA_IDBTINVESTNMNL_STR-BOOKVALUEAMTINPOSITIONCURRENCY sy-vline 
WA_IDBTINVESTNMNL_STR-NOMINALAMOUNTINREPORTINGCRCY sy-vline 
WA_IDBTINVESTNMNL_STR-BOOKVALUEAMOUNTINREPORTINGCRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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