ABAP Select data from SAP table CNV_OT_UI_S_FNAME_SHLP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNV_OT_UI_S_FNAME_SHLP
*  INTO TABLE @DATA(IT_CNV_OT_UI_S_FNAME_SHLP2).
*--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_CNV_OT_UI_S_FNAME_SHLP INDEX 1 INTO DATA(WA_CNV_OT_UI_S_FNAME_SHLP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNV_OT_UI_S_FNAME_SHLP>-COLUMN = 1.
<CNV_OT_UI_S_FNAME_SHLP>-SEARCH_HELP = 1.
<CNV_OT_UI_S_FNAME_SHLP>-SHLPNAME = 1.
<CNV_OT_UI_S_FNAME_SHLP>-SHLPTYPE = 1.
<CNV_OT_UI_S_FNAME_SHLP>-INTDESCR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNV_OT_UI_S_FNAME_SHLP-ISSIMPLE, sy-vline,
  WA_CNV_OT_UI_S_FNAME_SHLP-HOTKEY, sy-vline,
  WA_CNV_OT_UI_S_FNAME_SHLP-SELMTYPE, sy-vline,
  WA_CNV_OT_UI_S_FNAME_SHLP-SELMETHOD, sy-vline,
  WA_CNV_OT_UI_S_FNAME_SHLP-TEXTTAB, sy-vline,
  WA_CNV_OT_UI_S_FNAME_SHLP-SELMEXIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNV_OT_UI_S_FNAME_SHLP 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_CNV_OT_UI_S_FNAME_SHLP 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_CNV_OT_UI_S_FNAME_SHLP INTO WA_CNV_OT_UI_S_FNAME_SHLP.


*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_CNV_OT_UI_S_FNAME_SHLP-DDLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNV_OT_UI_S_FNAME_SHLP-DDLANGUAGE.
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_CNV_OT_UI_S_FNAME_SHLP_STR, 
COLUMN TYPE STRING,
SEARCH_HELP TYPE STRING,
SHLPNAME TYPE STRING,
SHLPTYPE TYPE STRING,
INTDESCR TYPE STRING,
ISSIMPLE TYPE STRING,
HOTKEY TYPE STRING,
SELMTYPE TYPE STRING,
SELMETHOD TYPE STRING,
TEXTTAB TYPE STRING,
SELMEXIT TYPE STRING,
DIALOGTYPE TYPE STRING,
DDLANGUAGE TYPE STRING,
DDTEXT TYPE STRING,
DIALOGINFO TYPE STRING,
F4STATE TYPE STRING,
TABNAME TYPE STRING,
FIELDNAME TYPE STRING,
TITLE TYPE STRING,
HISTORY TYPE STRING,
HANDLE TYPE STRING,
AUTOSUGGEST TYPE STRING,
FUZZY_SEARCH TYPE STRING,
FUZZY_SIMILARITY TYPE STRING,
INTERFACE TYPE STRING,
FIELDDESCR TYPE STRING,
FIELDPROP TYPE STRING,
SELOPT TYPE STRING,
TEXTSEARCH TYPE STRING,
REQUEST TYPE STRING,
FIELDS TYPE STRING,
FIELDNAME TYPE STRING,
OUTTAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNV_OT_UI_S_FNAME_SHLP_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_CNV_OT_UI_S_FNAME_SHLP_STR-COLUMN sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-SEARCH_HELP sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-SHLPNAME sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-SHLPTYPE sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-INTDESCR sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-ISSIMPLE sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-HOTKEY sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-SELMTYPE sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-SELMETHOD sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-TEXTTAB sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-SELMEXIT sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-DIALOGTYPE sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-DDLANGUAGE sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-DDTEXT sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-DIALOGINFO sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-F4STATE sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-TABNAME sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-FIELDNAME sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-TITLE sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-HISTORY sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-HANDLE sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-AUTOSUGGEST sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-FUZZY_SEARCH sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-FUZZY_SIMILARITY sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-INTERFACE sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-FIELDDESCR sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-FIELDPROP sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-SELOPT sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-TEXTSEARCH sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-REQUEST sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-FIELDS sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-FIELDNAME sy-vline 
WA_CNV_OT_UI_S_FNAME_SHLP_STR-OUTTAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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