ABAP Select data from SAP table RCF_S_ACT_RSP_CLUSTER_DATA 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_ACT_RSP_CLUSTER_DATA 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_ACT_RSP_CLUSTER_DATA. 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_ACT_RSP_CLUSTER_DATA 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_ACT_RSP_CLUSTER_DATA TYPE STANDARD TABLE OF RCF_S_ACT_RSP_CLUSTER_DATA,
      WA_RCF_S_ACT_RSP_CLUSTER_DATA TYPE RCF_S_ACT_RSP_CLUSTER_DATA,
      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_ACT_RSP_CLUSTER_DATA> TYPE RCF_S_ACT_RSP_CLUSTER_DATA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RCF_S_ACT_RSP_CLUSTER_DATA
*  INTO TABLE @DATA(IT_RCF_S_ACT_RSP_CLUSTER_DATA2).
*--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_ACT_RSP_CLUSTER_DATA INDEX 1 INTO DATA(WA_RCF_S_ACT_RSP_CLUSTER_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RCF_S_ACT_RSP_CLUSTER_DATA>-EDUCATION_DATA = 1.
<RCF_S_ACT_RSP_CLUSTER_DATA>-WORK_EXPERIENCE_DATA = 1.
<RCF_S_ACT_RSP_CLUSTER_DATA>-QUALIFICATION_DATA = 1.
<RCF_S_ACT_RSP_CLUSTER_DATA>-PERSONAL_DATA = 1.
<RCF_S_ACT_RSP_CLUSTER_DATA>-FORMOFADDRESS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RCF_S_ACT_RSP_CLUSTER_DATA-FIRSTNAME, sy-vline,
  WA_RCF_S_ACT_RSP_CLUSTER_DATA-LASTNAME, sy-vline,
  WA_RCF_S_ACT_RSP_CLUSTER_DATA-MIDDLENAME, sy-vline,
  WA_RCF_S_ACT_RSP_CLUSTER_DATA-SEX, sy-vline,
  WA_RCF_S_ACT_RSP_CLUSTER_DATA-BIRTHDATE, sy-vline,
  WA_RCF_S_ACT_RSP_CLUSTER_DATA-FULLNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RCF_S_ACT_RSP_CLUSTER_DATA 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_ACT_RSP_CLUSTER_DATA 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_ACT_RSP_CLUSTER_DATA INTO WA_RCF_S_ACT_RSP_CLUSTER_DATA.


*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 EMAIL
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_RCF_S_ACT_RSP_CLUSTER_DATA-EMAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCF_S_ACT_RSP_CLUSTER_DATA-EMAIL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field SENDER_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RCF_S_ACT_RSP_CLUSTER_DATA-SENDER_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCF_S_ACT_RSP_CLUSTER_DATA-SENDER_ID.
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_ACT_RSP_CLUSTER_DATA_STR, 
EDUCATION_DATA TYPE STRING,
WORK_EXPERIENCE_DATA TYPE STRING,
QUALIFICATION_DATA TYPE STRING,
PERSONAL_DATA TYPE STRING,
FORMOFADDRESS TYPE STRING,
FIRSTNAME TYPE STRING,
LASTNAME TYPE STRING,
MIDDLENAME TYPE STRING,
SEX TYPE STRING,
BIRTHDATE TYPE STRING,
FULLNAME TYPE STRING,
PREFIX1 TYPE STRING,
TITLE TYPE STRING,
TITLE_ACA2 TYPE STRING,
TITLE_SPPL TYPE STRING,
EMAIL TYPE STRING,
LANGU TYPE STRING,
ADDRESS_DATA TYPE STRING,
TELEPHONE_DATA TYPE STRING,
ADDITIONAL_DATA TYPE STRING,
TRANSACTION_ID TYPE STRING,
REQUISITION_ID TYPE STRING,
PROCESSING_STATUS TYPE STRING,
DATE_RECEIVED TYPE STRING,
DATE_LAST_UPDATE TYPE STRING,
RELATED_ATTRIBUTES TYPE STRING,
REVIEW_ACTION_CODE TYPE STRING,
APPLICATION_SOURCE TYPE STRING,
TYPE TYPE STRING,
DESCRIPTION TYPE STRING,
RELATED_ID TYPE STRING,
TYPE TYPE STRING,
CONTENT TYPE STRING,
SENDER_ID TYPE STRING,
ATTACHMENTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RCF_S_ACT_RSP_CLUSTER_DATA_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_ACT_RSP_CLUSTER_DATA_STR-EDUCATION_DATA sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-WORK_EXPERIENCE_DATA sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-QUALIFICATION_DATA sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-PERSONAL_DATA sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-FORMOFADDRESS sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-FIRSTNAME sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-LASTNAME sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-MIDDLENAME sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-SEX sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-BIRTHDATE sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-FULLNAME sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-PREFIX1 sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-TITLE sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-TITLE_ACA2 sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-TITLE_SPPL sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-EMAIL sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-LANGU sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-ADDRESS_DATA sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-TELEPHONE_DATA sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-ADDITIONAL_DATA sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-TRANSACTION_ID sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-REQUISITION_ID sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-PROCESSING_STATUS sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-DATE_RECEIVED sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-DATE_LAST_UPDATE sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-RELATED_ATTRIBUTES sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-REVIEW_ACTION_CODE sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-APPLICATION_SOURCE sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-TYPE sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-DESCRIPTION sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-RELATED_ID sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-TYPE sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-CONTENT sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-SENDER_ID sy-vline 
WA_RCF_S_ACT_RSP_CLUSTER_DATA_STR-ATTACHMENTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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