ABAP Select data from SAP table CNV_PE_S_SHLP_INTDESCR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CNV_PE_S_SHLP_INTDESCR 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_PE_S_SHLP_INTDESCR. 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_PE_S_SHLP_INTDESCR 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_PE_S_SHLP_INTDESCR TYPE STANDARD TABLE OF CNV_PE_S_SHLP_INTDESCR,
      WA_CNV_PE_S_SHLP_INTDESCR TYPE CNV_PE_S_SHLP_INTDESCR,
      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_PE_S_SHLP_INTDESCR> TYPE CNV_PE_S_SHLP_INTDESCR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNV_PE_S_SHLP_INTDESCR
*  INTO TABLE @DATA(IT_CNV_PE_S_SHLP_INTDESCR2).
*--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_PE_S_SHLP_INTDESCR INDEX 1 INTO DATA(WA_CNV_PE_S_SHLP_INTDESCR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNV_PE_S_SHLP_INTDESCR>-SHLPNAME = 1.
<CNV_PE_S_SHLP_INTDESCR>-SHLPTYPE = 1.
<CNV_PE_S_SHLP_INTDESCR>-ISSIMPLE = 1.
<CNV_PE_S_SHLP_INTDESCR>-HOTKEY = 1.
<CNV_PE_S_SHLP_INTDESCR>-SELMTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNV_PE_S_SHLP_INTDESCR-SELMETHOD, sy-vline,
  WA_CNV_PE_S_SHLP_INTDESCR-TEXTTAB, sy-vline,
  WA_CNV_PE_S_SHLP_INTDESCR-SELMEXIT, sy-vline,
  WA_CNV_PE_S_SHLP_INTDESCR-DIALOGTYPE, sy-vline,
  WA_CNV_PE_S_SHLP_INTDESCR-DDLANGUAGE, sy-vline,
  WA_CNV_PE_S_SHLP_INTDESCR-DDTEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNV_PE_S_SHLP_INTDESCR 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_PE_S_SHLP_INTDESCR 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_PE_S_SHLP_INTDESCR INTO WA_CNV_PE_S_SHLP_INTDESCR.


*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_PE_S_SHLP_INTDESCR-DDLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNV_PE_S_SHLP_INTDESCR-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_PE_S_SHLP_INTDESCR_STR, 
SHLPNAME TYPE STRING,
SHLPTYPE 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,END OF T_EKKO_STR.
DATA: WA_CNV_PE_S_SHLP_INTDESCR_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_PE_S_SHLP_INTDESCR_STR-SHLPNAME sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-SHLPTYPE sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-ISSIMPLE sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-HOTKEY sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-SELMTYPE sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-SELMETHOD sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-TEXTTAB sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-SELMEXIT sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-DIALOGTYPE sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-DDLANGUAGE sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-DDTEXT sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-DIALOGINFO sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-F4STATE sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-TABNAME sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-FIELDNAME sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-TITLE sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-HISTORY sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-HANDLE sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-AUTOSUGGEST sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-FUZZY_SEARCH sy-vline 
WA_CNV_PE_S_SHLP_INTDESCR_STR-FUZZY_SIMILARITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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