ABAP Select data from SAP table RCF_S_DBCDCY_LIST_FIELDS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RCF_S_DBCDCY_LIST_FIELDS
*  INTO TABLE @DATA(IT_RCF_S_DBCDCY_LIST_FIELDS2).
*--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_RCF_S_DBCDCY_LIST_FIELDS INDEX 1 INTO DATA(WA_RCF_S_DBCDCY_LIST_FIELDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RCF_S_DBCDCY_LIST_FIELDS>-NA_OBJID = 1.
<RCF_S_DBCDCY_LIST_FIELDS>-NA_NAME = 1.
<RCF_S_DBCDCY_LIST_FIELDS>-NA_SORT_NAME = 1.
<RCF_S_DBCDCY_LIST_FIELDS>-NA_EMAIL_ADDRESS = 1.
<RCF_S_DBCDCY_LIST_FIELDS>-HAS_RESUME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RCF_S_DBCDCY_LIST_FIELDS-ND_OBJID, sy-vline,
  WA_RCF_S_DBCDCY_LIST_FIELDS-ND_DATE, sy-vline,
  WA_RCF_S_DBCDCY_LIST_FIELDS-ND_SOURCE, sy-vline,
  WA_RCF_S_DBCDCY_LIST_FIELDS-FORWARDED_BY, sy-vline,
  WA_RCF_S_DBCDCY_LIST_FIELDS-IS_EMPLOYEE, sy-vline,
  WA_RCF_S_DBCDCY_LIST_FIELDS-EMPLOYEE_INFO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RCF_S_DBCDCY_LIST_FIELDS 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_RCF_S_DBCDCY_LIST_FIELDS 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_RCF_S_DBCDCY_LIST_FIELDS INTO WA_RCF_S_DBCDCY_LIST_FIELDS.


*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 SXIDN, internal->external for field NA_EMAIL_ADDRESS
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_RCF_S_DBCDCY_LIST_FIELDS-NA_EMAIL_ADDRESS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCF_S_DBCDCY_LIST_FIELDS-NA_EMAIL_ADDRESS.
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_RCF_S_DBCDCY_LIST_FIELDS_STR, 
NA_OBJID TYPE STRING,
NA_NAME TYPE STRING,
NA_SORT_NAME TYPE STRING,
NA_EMAIL_ADDRESS TYPE STRING,
HAS_RESUME TYPE STRING,
ND_OBJID TYPE STRING,
ND_DATE TYPE STRING,
ND_SOURCE TYPE STRING,
FORWARDED_BY TYPE STRING,
IS_EMPLOYEE TYPE STRING,
EMPLOYEE_INFO TYPE STRING,
NE_STATUS TYPE STRING,
NE_STATUS_TXT TYPE STRING,
NA_QA_RANK TYPE STRING,
TP_QA_RANK TYPE STRING,
OA_TRM_RANK TYPE STRING,
OA_NB_RANK TYPE STRING,
NO_OF_ASSIGNT TYPE STRING,
HAS_NOTES TYPE STRING,
HAS_LAST_ACT TYPE STRING,
LAST_ACT TYPE STRING,
LAST_ACT_STATUS TYPE STRING,
LAST_ACT_C_DATE TYPE STRING,
PROCESSOR TYPE STRING,
NE_PROCESS TYPE STRING,
LAST_EMPLOYER TYPE STRING,
LAST_JOB TYPE STRING,
EDUCATION_TYPE TYPE STRING,
EDUCATION_LEVEL TYPE STRING,
IS_READ TYPE STRING,
PROCESS_ID TYPE STRING,
APPL_STATUS TYPE STRING,
APPL_SOURCE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RCF_S_DBCDCY_LIST_FIELDS_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_RCF_S_DBCDCY_LIST_FIELDS_STR-NA_OBJID sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-NA_NAME sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-NA_SORT_NAME sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-NA_EMAIL_ADDRESS sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-HAS_RESUME sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-ND_OBJID sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-ND_DATE sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-ND_SOURCE sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-FORWARDED_BY sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-IS_EMPLOYEE sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-EMPLOYEE_INFO sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-NE_STATUS sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-NE_STATUS_TXT sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-NA_QA_RANK sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-TP_QA_RANK sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-OA_TRM_RANK sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-OA_NB_RANK sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-NO_OF_ASSIGNT sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-HAS_NOTES sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-HAS_LAST_ACT sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-LAST_ACT sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-LAST_ACT_STATUS sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-LAST_ACT_C_DATE sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-PROCESSOR sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-NE_PROCESS sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-LAST_EMPLOYER sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-LAST_JOB sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-EDUCATION_TYPE sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-EDUCATION_LEVEL sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-IS_READ sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-PROCESS_ID sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-APPL_STATUS sy-vline 
WA_RCF_S_DBCDCY_LIST_FIELDS_STR-APPL_SOURCE sy-vline      INTO ld_text SEPARATED BY SPACE.

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