ABAP Select data from SAP table CNVCDMCUCIA_RFCDES into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNVCDMCUCIA_RFCDES
*  INTO TABLE @DATA(IT_CNVCDMCUCIA_RFCDES2).
*--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_CNVCDMCUCIA_RFCDES INDEX 1 INTO DATA(WA_CNVCDMCUCIA_RFCDES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNVCDMCUCIA_RFCDES>-RFCDEST = 1.
<CNVCDMCUCIA_RFCDES>-RFCTYPE = 1.
<CNVCDMCUCIA_RFCDES>-RFCOPTIONS = 1.
<CNVCDMCUCIA_RFCDES>-RFCOPTIONT = 1.
<CNVCDMCUCIA_RFCDES>-RFCOPTIONU = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNVCDMCUCIA_RFCDES-RFCOPTIONV, sy-vline,
  WA_CNVCDMCUCIA_RFCDES-RFCOPTION1, sy-vline,
  WA_CNVCDMCUCIA_RFCDES-RFCOPTION2, sy-vline,
  WA_CNVCDMCUCIA_RFCDES-RFCOPTION3, sy-vline,
  WA_CNVCDMCUCIA_RFCDES-RFCOPTION4, sy-vline,
  WA_CNVCDMCUCIA_RFCDES-RFCOPTION5, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNVCDMCUCIA_RFCDES 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_CNVCDMCUCIA_RFCDES 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_CNVCDMCUCIA_RFCDES INTO WA_CNVCDMCUCIA_RFCDES.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CNVCDMCUCIA_RFCDES_STR, 
RFCDEST TYPE STRING,
RFCTYPE TYPE STRING,
RFCOPTIONS TYPE STRING,
RFCOPTIONT TYPE STRING,
RFCOPTIONU TYPE STRING,
RFCOPTIONV TYPE STRING,
RFCOPTION1 TYPE STRING,
RFCOPTION2 TYPE STRING,
RFCOPTION3 TYPE STRING,
RFCOPTION4 TYPE STRING,
RFCOPTION5 TYPE STRING,
RFCOPTION6 TYPE STRING,
RFCOPTION7 TYPE STRING,
RFCOPTION8 TYPE STRING,
RFCOPTION9 TYPE STRING,
RFCOPTIONA TYPE STRING,
RFCOPTIONB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNVCDMCUCIA_RFCDES_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_CNVCDMCUCIA_RFCDES_STR-RFCDEST sy-vline 
WA_CNVCDMCUCIA_RFCDES_STR-RFCTYPE sy-vline 
WA_CNVCDMCUCIA_RFCDES_STR-RFCOPTIONS sy-vline 
WA_CNVCDMCUCIA_RFCDES_STR-RFCOPTIONT sy-vline 
WA_CNVCDMCUCIA_RFCDES_STR-RFCOPTIONU sy-vline 
WA_CNVCDMCUCIA_RFCDES_STR-RFCOPTIONV sy-vline 
WA_CNVCDMCUCIA_RFCDES_STR-RFCOPTION1 sy-vline 
WA_CNVCDMCUCIA_RFCDES_STR-RFCOPTION2 sy-vline 
WA_CNVCDMCUCIA_RFCDES_STR-RFCOPTION3 sy-vline 
WA_CNVCDMCUCIA_RFCDES_STR-RFCOPTION4 sy-vline 
WA_CNVCDMCUCIA_RFCDES_STR-RFCOPTION5 sy-vline 
WA_CNVCDMCUCIA_RFCDES_STR-RFCOPTION6 sy-vline 
WA_CNVCDMCUCIA_RFCDES_STR-RFCOPTION7 sy-vline 
WA_CNVCDMCUCIA_RFCDES_STR-RFCOPTION8 sy-vline 
WA_CNVCDMCUCIA_RFCDES_STR-RFCOPTION9 sy-vline 
WA_CNVCDMCUCIA_RFCDES_STR-RFCOPTIONA sy-vline 
WA_CNVCDMCUCIA_RFCDES_STR-RFCOPTIONB sy-vline      INTO ld_text SEPARATED BY SPACE.

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