ABAP Select data from SAP table RN2CLIO_PROC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN2CLIO_PROC 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 RN2CLIO_PROC. 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 RN2CLIO_PROC 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_RN2CLIO_PROC TYPE STANDARD TABLE OF RN2CLIO_PROC,
      WA_RN2CLIO_PROC TYPE RN2CLIO_PROC,
      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: <RN2CLIO_PROC> TYPE RN2CLIO_PROC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN2CLIO_PROC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN2CLIO_PROC
  INTO TABLE IT_RN2CLIO_PROC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN2CLIO_PROC
*  INTO TABLE @DATA(IT_RN2CLIO_PROC2).
*--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_RN2CLIO_PROC INDEX 1 INTO DATA(WA_RN2CLIO_PROC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN2CLIO_PROC ASSIGNING <RN2CLIO_PROC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN2CLIO_PROC>-MANDT = 1.
<RN2CLIO_PROC>-LNRIC = 1.
<RN2CLIO_PROC>-LFDBEW = 1.
<RN2CLIO_PROC>-ICPMK = 1.
<RN2CLIO_PROC>-ICPML = 1.

ENDLOOP.

LOOP AT IT_RN2CLIO_PROC INTO WA_RN2CLIO_PROC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN2CLIO_PROC-ICPHC, sy-vline,
  WA_RN2CLIO_PROC-ANZOP, sy-vline,
  WA_RN2CLIO_PROC-BGDOP, sy-vline,
  WA_RN2CLIO_PROC-BZTOP, sy-vline,
  WA_RN2CLIO_PROC-EZTOP, sy-vline,
  WA_RN2CLIO_PROC-LSLOK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN2CLIO_PROC 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_RN2CLIO_PROC 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_RN2CLIO_PROC INTO WA_RN2CLIO_PROC.


*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 ALPHA, internal->external for field LNRIC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2CLIO_PROC-LNRIC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2CLIO_PROC-LNRIC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ICPMK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2CLIO_PROC-ICPMK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2CLIO_PROC-ICPMK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ICPML
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2CLIO_PROC-ICPML
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2CLIO_PROC-ICPML.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LSLOK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2CLIO_PROC-LSLOK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2CLIO_PROC-LSLOK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field IDENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2CLIO_PROC-IDENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2CLIO_PROC-IDENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OPART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2CLIO_PROC-OPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2CLIO_PROC-OPART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EINRI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2CLIO_PROC-EINRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2CLIO_PROC-EINRI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FALNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2CLIO_PROC-FALNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2CLIO_PROC-FALNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field BEMKZ
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RN2CLIO_PROC-BEMKZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2CLIO_PROC-BEMKZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORGFA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2CLIO_PROC-ORGFA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2CLIO_PROC-ORGFA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORGPF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2CLIO_PROC-ORGPF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2CLIO_PROC-ORGPF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN2CLIO_PROC-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2CLIO_PROC-UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LNRIC_REF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2CLIO_PROC-LNRIC_REF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2CLIO_PROC-LNRIC_REF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LNRLM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2CLIO_PROC-LNRLM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2CLIO_PROC-LNRLM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ENTGA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2CLIO_PROC-ENTGA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2CLIO_PROC-ENTGA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ICPML_REF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2CLIO_PROC-ICPML_REF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2CLIO_PROC-ICPML_REF.
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_RN2CLIO_PROC_STR, 
MANDT TYPE STRING,
LNRIC TYPE STRING,
LFDBEW TYPE STRING,
ICPMK TYPE STRING,
ICPML TYPE STRING,
ICPHC TYPE STRING,
ANZOP TYPE STRING,
BGDOP TYPE STRING,
BZTOP TYPE STRING,
EZTOP TYPE STRING,
LSLOK TYPE STRING,
IDENT TYPE STRING,
OPART TYPE STRING,
UPDAT TYPE STRING,
UPUSR TYPE STRING,
STORN TYPE STRING,
STUSR TYPE STRING,
STDAT TYPE STRING,
TCODE TYPE STRING,
EINRI TYPE STRING,
FALNR TYPE STRING,
BTEXT TYPE STRING,
EVENT TYPE STRING,
OBJCT TYPE STRING,
DRG_SEQNO TYPE STRING,
DRG_CATEGORY TYPE STRING,
DRG_RELEVANT TYPE STRING,
BEMKZ TYPE STRING,
ORGFA TYPE STRING,
ORGPF TYPE STRING,
ENDOP TYPE STRING,
PRTYP TYPE STRING,
EVTUP TYPE STRING,
OBJUP TYPE STRING,
TIMESTAMP TYPE STRING,
QUANTITY TYPE STRING,
UNIT TYPE STRING,
LNRIC_REF TYPE STRING,
LNRLM TYPE STRING,
DRG_IMPACT TYPE STRING,
CCL TYPE STRING,
OPLEBSPEN TYPE STRING,
BTEXT_LT TYPE STRING,
SELECTED_POPIN TYPE STRING,
LSLOK_TEXT TYPE STRING,
ENTGA TYPE STRING,
ICPML_REF TYPE STRING,
SURG_FLAG TYPE STRING,
SURG_TYPE TYPE STRING,
SURG_NR TYPE STRING,
CTEXT TYPE STRING,
CTEXT_LT TYPE STRING,
DRG_CAT_TEXT TYPE STRING,
UNIT_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN2CLIO_PROC_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_RN2CLIO_PROC_STR-MANDT sy-vline 
WA_RN2CLIO_PROC_STR-LNRIC sy-vline 
WA_RN2CLIO_PROC_STR-LFDBEW sy-vline 
WA_RN2CLIO_PROC_STR-ICPMK sy-vline 
WA_RN2CLIO_PROC_STR-ICPML sy-vline 
WA_RN2CLIO_PROC_STR-ICPHC sy-vline 
WA_RN2CLIO_PROC_STR-ANZOP sy-vline 
WA_RN2CLIO_PROC_STR-BGDOP sy-vline 
WA_RN2CLIO_PROC_STR-BZTOP sy-vline 
WA_RN2CLIO_PROC_STR-EZTOP sy-vline 
WA_RN2CLIO_PROC_STR-LSLOK sy-vline 
WA_RN2CLIO_PROC_STR-IDENT sy-vline 
WA_RN2CLIO_PROC_STR-OPART sy-vline 
WA_RN2CLIO_PROC_STR-UPDAT sy-vline 
WA_RN2CLIO_PROC_STR-UPUSR sy-vline 
WA_RN2CLIO_PROC_STR-STORN sy-vline 
WA_RN2CLIO_PROC_STR-STUSR sy-vline 
WA_RN2CLIO_PROC_STR-STDAT sy-vline 
WA_RN2CLIO_PROC_STR-TCODE sy-vline 
WA_RN2CLIO_PROC_STR-EINRI sy-vline 
WA_RN2CLIO_PROC_STR-FALNR sy-vline 
WA_RN2CLIO_PROC_STR-BTEXT sy-vline 
WA_RN2CLIO_PROC_STR-EVENT sy-vline 
WA_RN2CLIO_PROC_STR-OBJCT sy-vline 
WA_RN2CLIO_PROC_STR-DRG_SEQNO sy-vline 
WA_RN2CLIO_PROC_STR-DRG_CATEGORY sy-vline 
WA_RN2CLIO_PROC_STR-DRG_RELEVANT sy-vline 
WA_RN2CLIO_PROC_STR-BEMKZ sy-vline 
WA_RN2CLIO_PROC_STR-ORGFA sy-vline 
WA_RN2CLIO_PROC_STR-ORGPF sy-vline 
WA_RN2CLIO_PROC_STR-ENDOP sy-vline 
WA_RN2CLIO_PROC_STR-PRTYP sy-vline 
WA_RN2CLIO_PROC_STR-EVTUP sy-vline 
WA_RN2CLIO_PROC_STR-OBJUP sy-vline 
WA_RN2CLIO_PROC_STR-TIMESTAMP sy-vline 
WA_RN2CLIO_PROC_STR-QUANTITY sy-vline 
WA_RN2CLIO_PROC_STR-UNIT sy-vline 
WA_RN2CLIO_PROC_STR-LNRIC_REF sy-vline 
WA_RN2CLIO_PROC_STR-LNRLM sy-vline 
WA_RN2CLIO_PROC_STR-DRG_IMPACT sy-vline 
WA_RN2CLIO_PROC_STR-CCL sy-vline 
WA_RN2CLIO_PROC_STR-OPLEBSPEN sy-vline 
WA_RN2CLIO_PROC_STR-BTEXT_LT sy-vline 
WA_RN2CLIO_PROC_STR-SELECTED_POPIN sy-vline 
WA_RN2CLIO_PROC_STR-LSLOK_TEXT sy-vline 
WA_RN2CLIO_PROC_STR-ENTGA sy-vline 
WA_RN2CLIO_PROC_STR-ICPML_REF sy-vline 
WA_RN2CLIO_PROC_STR-SURG_FLAG sy-vline 
WA_RN2CLIO_PROC_STR-SURG_TYPE sy-vline 
WA_RN2CLIO_PROC_STR-SURG_NR sy-vline 
WA_RN2CLIO_PROC_STR-CTEXT sy-vline 
WA_RN2CLIO_PROC_STR-CTEXT_LT sy-vline 
WA_RN2CLIO_PROC_STR-DRG_CAT_TEXT sy-vline 
WA_RN2CLIO_PROC_STR-UNIT_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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