ABAP Select data from SAP table RCF_S_CORR_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_CORR_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_CORR_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_CORR_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_CORR_FIELDS TYPE STANDARD TABLE OF RCF_S_CORR_FIELDS,
      WA_RCF_S_CORR_FIELDS TYPE RCF_S_CORR_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_CORR_FIELDS> TYPE RCF_S_CORR_FIELDS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RCF_S_CORR_FIELDS
*  INTO TABLE @DATA(IT_RCF_S_CORR_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_CORR_FIELDS INDEX 1 INTO DATA(WA_RCF_S_CORR_FIELDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RCF_S_CORR_FIELDS>-ORG_NAME = 1.
<RCF_S_CORR_FIELDS>-HEADER = 1.
<RCF_S_CORR_FIELDS>-ABLEHNUNG = 1.
<RCF_S_CORR_FIELDS>-SEARCHTERM1 = 1.
<RCF_S_CORR_FIELDS>-SEARCHTERM2 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RCF_S_CORR_FIELDS-PARTNERTYPE, sy-vline,
  WA_RCF_S_CORR_FIELDS-AUTHORIZATIONGROUP, sy-vline,
  WA_RCF_S_CORR_FIELDS-PARTNERLANGUAGE, sy-vline,
  WA_RCF_S_CORR_FIELDS-PARTNERLANGUAGEISO, sy-vline,
  WA_RCF_S_CORR_FIELDS-DATAORIGINTYPE, sy-vline,
  WA_RCF_S_CORR_FIELDS-CENTRALARCHIVINGFLAG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RCF_S_CORR_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_CORR_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_CORR_FIELDS INTO WA_RCF_S_CORR_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 ISOLA, internal->external for field PARTNERLANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RCF_S_CORR_FIELDS-PARTNERLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCF_S_CORR_FIELDS-PARTNERLANGUAGE.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field BAS_NR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RCF_S_CORR_FIELDS-BAS_NR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCF_S_CORR_FIELDS-BAS_NR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field TDSPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RCF_S_CORR_FIELDS-TDSPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCF_S_CORR_FIELDS-TDSPRAS.
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_CORR_FIELDS_STR, 
ORG_NAME TYPE STRING,
HEADER TYPE STRING,
ABLEHNUNG TYPE STRING,
SEARCHTERM1 TYPE STRING,
SEARCHTERM2 TYPE STRING,
PARTNERTYPE TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
PARTNERLANGUAGE TYPE STRING,
PARTNERLANGUAGEISO TYPE STRING,
DATAORIGINTYPE TYPE STRING,
CENTRALARCHIVINGFLAG TYPE STRING,
CENTRALBLOCK TYPE STRING,
TITLE_KEY TYPE STRING,
CONTACTALLOWANCE TYPE STRING,
PARTNEREXTERNAL TYPE STRING,
TITLELETTER TYPE STRING,
NOTRELEASED TYPE STRING,
COMM_TYPE TYPE STRING,
PRINT_MODE TYPE STRING,
FIRSTNAME TYPE STRING,
LASTNAME TYPE STRING,
BIRTHNAME TYPE STRING,
MIDDLENAME TYPE STRING,
SECONDNAME TYPE STRING,
TITLE_ACA1 TYPE STRING,
TITLE_ACA2 TYPE STRING,
TITLE_SPPL TYPE STRING,
PREFIX1 TYPE STRING,
PREFIX2 TYPE STRING,
NICKNAME TYPE STRING,
INITIALS TYPE STRING,
NAMEFORMAT TYPE STRING,
NAMCOUNTRY TYPE STRING,
NAMCOUNTRYISO TYPE STRING,
SEX TYPE STRING,
BIRTHPLACE TYPE STRING,
BIRTHDATE TYPE STRING,
DEATHDATE TYPE STRING,
MARITALSTATUS TYPE STRING,
CORRESPONDLANGUAGE TYPE STRING,
CORRESPONDLANGUAGEISO TYPE STRING,
FULLNAME TYPE STRING,
EMPLOYER TYPE STRING,
OCCUPATION TYPE STRING,
NATIONALITY TYPE STRING,
NATIONALITYISO TYPE STRING,
COUNTRYORIGIN TYPE STRING,
BAS_NR TYPE STRING,
MY_TEXT1 TYPE STRING,
TDOBJECT TYPE STRING,
TDNAME TYPE STRING,
TDID TYPE STRING,
TDSPRAS TYPE STRING,
ATTACHMENTS TYPE STRING,
MODIFIED TYPE STRING,
TO_MODIFY TYPE STRING,
FINALIZED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RCF_S_CORR_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_CORR_FIELDS_STR-ORG_NAME sy-vline 
WA_RCF_S_CORR_FIELDS_STR-HEADER sy-vline 
WA_RCF_S_CORR_FIELDS_STR-ABLEHNUNG sy-vline 
WA_RCF_S_CORR_FIELDS_STR-SEARCHTERM1 sy-vline 
WA_RCF_S_CORR_FIELDS_STR-SEARCHTERM2 sy-vline 
WA_RCF_S_CORR_FIELDS_STR-PARTNERTYPE sy-vline 
WA_RCF_S_CORR_FIELDS_STR-AUTHORIZATIONGROUP sy-vline 
WA_RCF_S_CORR_FIELDS_STR-PARTNERLANGUAGE sy-vline 
WA_RCF_S_CORR_FIELDS_STR-PARTNERLANGUAGEISO sy-vline 
WA_RCF_S_CORR_FIELDS_STR-DATAORIGINTYPE sy-vline 
WA_RCF_S_CORR_FIELDS_STR-CENTRALARCHIVINGFLAG sy-vline 
WA_RCF_S_CORR_FIELDS_STR-CENTRALBLOCK sy-vline 
WA_RCF_S_CORR_FIELDS_STR-TITLE_KEY sy-vline 
WA_RCF_S_CORR_FIELDS_STR-CONTACTALLOWANCE sy-vline 
WA_RCF_S_CORR_FIELDS_STR-PARTNEREXTERNAL sy-vline 
WA_RCF_S_CORR_FIELDS_STR-TITLELETTER sy-vline 
WA_RCF_S_CORR_FIELDS_STR-NOTRELEASED sy-vline 
WA_RCF_S_CORR_FIELDS_STR-COMM_TYPE sy-vline 
WA_RCF_S_CORR_FIELDS_STR-PRINT_MODE sy-vline 
WA_RCF_S_CORR_FIELDS_STR-FIRSTNAME sy-vline 
WA_RCF_S_CORR_FIELDS_STR-LASTNAME sy-vline 
WA_RCF_S_CORR_FIELDS_STR-BIRTHNAME sy-vline 
WA_RCF_S_CORR_FIELDS_STR-MIDDLENAME sy-vline 
WA_RCF_S_CORR_FIELDS_STR-SECONDNAME sy-vline 
WA_RCF_S_CORR_FIELDS_STR-TITLE_ACA1 sy-vline 
WA_RCF_S_CORR_FIELDS_STR-TITLE_ACA2 sy-vline 
WA_RCF_S_CORR_FIELDS_STR-TITLE_SPPL sy-vline 
WA_RCF_S_CORR_FIELDS_STR-PREFIX1 sy-vline 
WA_RCF_S_CORR_FIELDS_STR-PREFIX2 sy-vline 
WA_RCF_S_CORR_FIELDS_STR-NICKNAME sy-vline 
WA_RCF_S_CORR_FIELDS_STR-INITIALS sy-vline 
WA_RCF_S_CORR_FIELDS_STR-NAMEFORMAT sy-vline 
WA_RCF_S_CORR_FIELDS_STR-NAMCOUNTRY sy-vline 
WA_RCF_S_CORR_FIELDS_STR-NAMCOUNTRYISO sy-vline 
WA_RCF_S_CORR_FIELDS_STR-SEX sy-vline 
WA_RCF_S_CORR_FIELDS_STR-BIRTHPLACE sy-vline 
WA_RCF_S_CORR_FIELDS_STR-BIRTHDATE sy-vline 
WA_RCF_S_CORR_FIELDS_STR-DEATHDATE sy-vline 
WA_RCF_S_CORR_FIELDS_STR-MARITALSTATUS sy-vline 
WA_RCF_S_CORR_FIELDS_STR-CORRESPONDLANGUAGE sy-vline 
WA_RCF_S_CORR_FIELDS_STR-CORRESPONDLANGUAGEISO sy-vline 
WA_RCF_S_CORR_FIELDS_STR-FULLNAME sy-vline 
WA_RCF_S_CORR_FIELDS_STR-EMPLOYER sy-vline 
WA_RCF_S_CORR_FIELDS_STR-OCCUPATION sy-vline 
WA_RCF_S_CORR_FIELDS_STR-NATIONALITY sy-vline 
WA_RCF_S_CORR_FIELDS_STR-NATIONALITYISO sy-vline 
WA_RCF_S_CORR_FIELDS_STR-COUNTRYORIGIN sy-vline 
WA_RCF_S_CORR_FIELDS_STR-BAS_NR sy-vline 
WA_RCF_S_CORR_FIELDS_STR-MY_TEXT1 sy-vline 
WA_RCF_S_CORR_FIELDS_STR-TDOBJECT sy-vline 
WA_RCF_S_CORR_FIELDS_STR-TDNAME sy-vline 
WA_RCF_S_CORR_FIELDS_STR-TDID sy-vline 
WA_RCF_S_CORR_FIELDS_STR-TDSPRAS sy-vline 
WA_RCF_S_CORR_FIELDS_STR-ATTACHMENTS sy-vline 
WA_RCF_S_CORR_FIELDS_STR-MODIFIED sy-vline 
WA_RCF_S_CORR_FIELDS_STR-TO_MODIFY sy-vline 
WA_RCF_S_CORR_FIELDS_STR-FINALIZED sy-vline      INTO ld_text SEPARATED BY SPACE.

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