ABAP Select data from SAP table FINRE_UI_S_CNDN_FLD_LIST_HIER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FINRE_UI_S_CNDN_FLD_LIST_HIER
*  INTO TABLE @DATA(IT_FINRE_UI_S_CNDN_FLD_LIST_HIER2).
*--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_FINRE_UI_S_CNDN_FLD_LIST_HIER INDEX 1 INTO DATA(WA_FINRE_UI_S_CNDN_FLD_LIST_HIER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FINRE_UI_S_CNDN_FLD_LIST_HIER>-FINSUBSTNVALDTNRULECONTEXT = 1.
<FINRE_UI_S_CNDN_FLD_LIST_HIER>-NODE_ID = 1.
<FINRE_UI_S_CNDN_FLD_LIST_HIER>-PARENT_NODE = 1.
<FINRE_UI_S_CNDN_FLD_LIST_HIER>-NODE_TYPE = 1.
<FINRE_UI_S_CNDN_FLD_LIST_HIER>-NODE_DESC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FINRE_UI_S_CNDN_FLD_LIST_HIER-HIER_LEVEL, sy-vline,
  WA_FINRE_UI_S_CNDN_FLD_LIST_HIER-CDS_NAME, sy-vline,
  WA_FINRE_UI_S_CNDN_FLD_LIST_HIER-CDS_ALIAS, sy-vline,
  WA_FINRE_UI_S_CNDN_FLD_LIST_HIER-STRUCOBJN, sy-vline,
  WA_FINRE_UI_S_CNDN_FLD_LIST_HIER-NODENAME, sy-vline,
  WA_FINRE_UI_S_CNDN_FLD_LIST_HIER-FIELDNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FINRE_UI_S_CNDN_FLD_LIST_HIER 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_FINRE_UI_S_CNDN_FLD_LIST_HIER 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_FINRE_UI_S_CNDN_FLD_LIST_HIER INTO WA_FINRE_UI_S_CNDN_FLD_LIST_HIER.


*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 ISOLA, internal->external for field DDLANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_FINRE_UI_S_CNDN_FLD_LIST_HIER-DDLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINRE_UI_S_CNDN_FLD_LIST_HIER-DDLANGUAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DTYPE, internal->external for field DATATYPE
CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT'
  EXPORTING
    input =                      WA_FINRE_UI_S_CNDN_FLD_LIST_HIER-DATATYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINRE_UI_S_CNDN_FLD_LIST_HIER-DATATYPE.
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_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR, 
FINSUBSTNVALDTNRULECONTEXT TYPE STRING,
NODE_ID TYPE STRING,
PARENT_NODE TYPE STRING,
NODE_TYPE TYPE STRING,
NODE_DESC TYPE STRING,
HIER_LEVEL TYPE STRING,
CDS_NAME TYPE STRING,
CDS_ALIAS TYPE STRING,
STRUCOBJN TYPE STRING,
NODENAME TYPE STRING,
FIELDNAME TYPE STRING,
DDLANGUAGE TYPE STRING,
POSITION TYPE STRING,
KEYFLAG TYPE STRING,
ROLLNAME TYPE STRING,
DATATYPE TYPE STRING,
LENG TYPE STRING,
DECIMALS TYPE STRING,
CONVEXIT TYPE STRING,
DDTEXT TYPE STRING,
DEPTH TYPE STRING,
COMPTYPE TYPE STRING,
REFTABLE TYPE STRING,
REFFIELD TYPE STRING,
ENABLED TYPE STRING,
TRANSIENT TYPE STRING,
FIELDNAMEDBS TYPE STRING,
LFIELDNAME TYPE STRING,
FIELDORIGIN TYPE STRING,
FIELDLABEL TYPE STRING,
QUICKINFO TYPE STRING,
FIELDNAME_RAW TYPE STRING,
IS_VIRTUAL TYPE STRING,
IS_CALCULATED TYPE STRING,
CHECKTABLE TYPE STRING,
VALUEHELPCDSVIEW TYPE STRING,
SHLPNAME TYPE STRING,
SHLPFIELD TYPE STRING,
CHARCCHECKTABLE TYPE STRING,
ASSO_CDS_VIEW TYPE STRING,
ASSO_ANNO_VALUE TYPE STRING,
SUB_ASSOS TYPE STRING,
OVERWRITABLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_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_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-FINSUBSTNVALDTNRULECONTEXT sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-NODE_ID sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-PARENT_NODE sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-NODE_TYPE sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-NODE_DESC sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-HIER_LEVEL sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-CDS_NAME sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-CDS_ALIAS sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-STRUCOBJN sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-NODENAME sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-FIELDNAME sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-DDLANGUAGE sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-POSITION sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-KEYFLAG sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-ROLLNAME sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-DATATYPE sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-LENG sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-DECIMALS sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-CONVEXIT sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-DDTEXT sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-DEPTH sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-COMPTYPE sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-REFTABLE sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-REFFIELD sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-ENABLED sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-TRANSIENT sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-FIELDNAMEDBS sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-LFIELDNAME sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-FIELDORIGIN sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-FIELDLABEL sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-QUICKINFO sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-FIELDNAME_RAW sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-IS_VIRTUAL sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-IS_CALCULATED sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-CHECKTABLE sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-VALUEHELPCDSVIEW sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-SHLPNAME sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-SHLPFIELD sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-CHARCCHECKTABLE sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-ASSO_CDS_VIEW sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-ASSO_ANNO_VALUE sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-SUB_ASSOS sy-vline 
WA_FINRE_UI_S_CNDN_FLD_LIST_HIER_STR-OVERWRITABLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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