ABAP Select data from SAP table IPOSIDENT into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IPOSIDENT 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 IPOSIDENT. 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 IPOSIDENT 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_IPOSIDENT TYPE STANDARD TABLE OF IPOSIDENT,
      WA_IPOSIDENT TYPE IPOSIDENT,
      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: <IPOSIDENT> TYPE IPOSIDENT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPOSIDENT
*  INTO TABLE @DATA(IT_IPOSIDENT2).
*--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_IPOSIDENT INDEX 1 INTO DATA(WA_IPOSIDENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPOSIDENT>-MANDT = 1.
<IPOSIDENT>-TRSYPOSITIONIDENTIFICATIONUUID = 1.
<IPOSIDENT>-TREASURYPOSITION = 1.
<IPOSIDENT>-TREASURYVALUATIONAREA = 1.
<IPOSIDENT>-FINANCIALINSTRVALUATIONCLASS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPOSIDENT-TREASURYVALUATIONCLASS, sy-vline,
  WA_IPOSIDENT-COMPANYCODE, sy-vline,
  WA_IPOSIDENT-FINANCIALINSTRUMENTPRODUCTTYPE, sy-vline,
  WA_IPOSIDENT-SECURITYACCOUNT, sy-vline,
  WA_IPOSIDENT-SECURITYCLASS, sy-vline,
  WA_IPOSIDENT-DIFFERENTIATIONPORTFOLIO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPOSIDENT 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_IPOSIDENT 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_IPOSIDENT INTO WA_IPOSIDENT.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field FINANCIALEXPOSURESUBITEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IPOSIDENT-FINANCIALEXPOSURESUBITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPOSIDENT-FINANCIALEXPOSURESUBITEM.
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_IPOSIDENT_STR, 
MANDT TYPE STRING,
TRSYPOSITIONIDENTIFICATIONUUID TYPE STRING,
TREASURYPOSITION TYPE STRING,
TREASURYVALUATIONAREA TYPE STRING,
FINANCIALINSTRVALUATIONCLASS TYPE STRING,
TREASURYVALUATIONCLASS TYPE STRING,
COMPANYCODE TYPE STRING,
FINANCIALINSTRUMENTPRODUCTTYPE TYPE STRING,
SECURITYACCOUNT TYPE STRING,
SECURITYCLASS TYPE STRING,
DIFFERENTIATIONPORTFOLIO TYPE STRING,
TRADER TYPE STRING,
SECURITYACCOUNTGROUP TYPE STRING,
LOANCONTRACT TYPE STRING,
TREASURYPOSITIONACCOUNT TYPE STRING,
TREASURYPOSITIONLONGSHORTCODE TYPE STRING,
TREASURYPOSITIONLOT TYPE STRING,
FINANCIALTRANSACTION TYPE STRING,
FUND TYPE STRING,
GRANTID TYPE STRING,
CENTRALCLEARINGACCOUNT TYPE STRING,
CENTRALCLEARINGACCOUNTCURRENCY TYPE STRING,
TREASURYPOSITIONCONTEXT TYPE STRING,
TREASURYACCOUNTINGCODE TYPE STRING,
FINANCIALEXPOSUREITEM TYPE STRING,
FINANCIALEXPOSURESUBITEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPOSIDENT_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_IPOSIDENT_STR-MANDT sy-vline 
WA_IPOSIDENT_STR-TRSYPOSITIONIDENTIFICATIONUUID sy-vline 
WA_IPOSIDENT_STR-TREASURYPOSITION sy-vline 
WA_IPOSIDENT_STR-TREASURYVALUATIONAREA sy-vline 
WA_IPOSIDENT_STR-FINANCIALINSTRVALUATIONCLASS sy-vline 
WA_IPOSIDENT_STR-TREASURYVALUATIONCLASS sy-vline 
WA_IPOSIDENT_STR-COMPANYCODE sy-vline 
WA_IPOSIDENT_STR-FINANCIALINSTRUMENTPRODUCTTYPE sy-vline 
WA_IPOSIDENT_STR-SECURITYACCOUNT sy-vline 
WA_IPOSIDENT_STR-SECURITYCLASS sy-vline 
WA_IPOSIDENT_STR-DIFFERENTIATIONPORTFOLIO sy-vline 
WA_IPOSIDENT_STR-TRADER sy-vline 
WA_IPOSIDENT_STR-SECURITYACCOUNTGROUP sy-vline 
WA_IPOSIDENT_STR-LOANCONTRACT sy-vline 
WA_IPOSIDENT_STR-TREASURYPOSITIONACCOUNT sy-vline 
WA_IPOSIDENT_STR-TREASURYPOSITIONLONGSHORTCODE sy-vline 
WA_IPOSIDENT_STR-TREASURYPOSITIONLOT sy-vline 
WA_IPOSIDENT_STR-FINANCIALTRANSACTION sy-vline 
WA_IPOSIDENT_STR-FUND sy-vline 
WA_IPOSIDENT_STR-GRANTID sy-vline 
WA_IPOSIDENT_STR-CENTRALCLEARINGACCOUNT sy-vline 
WA_IPOSIDENT_STR-CENTRALCLEARINGACCOUNTCURRENCY sy-vline 
WA_IPOSIDENT_STR-TREASURYPOSITIONCONTEXT sy-vline 
WA_IPOSIDENT_STR-TREASURYACCOUNTINGCODE sy-vline 
WA_IPOSIDENT_STR-FINANCIALEXPOSUREITEM sy-vline 
WA_IPOSIDENT_STR-FINANCIALEXPOSURESUBITEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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