ABAP Select data from SAP table FARR_S_MC_RAI_MAIN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FARR_S_MC_RAI_MAIN
*  INTO TABLE @DATA(IT_FARR_S_MC_RAI_MAIN2).
*--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_FARR_S_MC_RAI_MAIN INDEX 1 INTO DATA(WA_FARR_S_MC_RAI_MAIN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FARR_S_MC_RAI_MAIN>-SRCDOC_COMP = 1.
<FARR_S_MC_RAI_MAIN>-SRCDOC_LOGSYS = 1.
<FARR_S_MC_RAI_MAIN>-SRCDOC_TYPE = 1.
<FARR_S_MC_RAI_MAIN>-SRCDOC_ID = 1.
<FARR_S_MC_RAI_MAIN>-TIMESTAMP_UTC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FARR_S_MC_RAI_MAIN-RAIC_TYPE, sy-vline,
  WA_FARR_S_MC_RAI_MAIN-RAIC, sy-vline,
  WA_FARR_S_MC_RAI_MAIN-STATUS, sy-vline,
  WA_FARR_S_MC_RAI_MAIN-VERSION, sy-vline,
  WA_FARR_S_MC_RAI_MAIN-KUNNR, sy-vline,
  WA_FARR_S_MC_RAI_MAIN-PARTNER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FARR_S_MC_RAI_MAIN 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_FARR_S_MC_RAI_MAIN 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_FARR_S_MC_RAI_MAIN INTO WA_FARR_S_MC_RAI_MAIN.


*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 SRCDOC_LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FARR_S_MC_RAI_MAIN-SRCDOC_LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FARR_S_MC_RAI_MAIN-SRCDOC_LOGSYS.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit EXCRT, internal->external for field EXCHANGE_RATE
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_FARR_S_MC_RAI_MAIN-EXCHANGE_RATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FARR_S_MC_RAI_MAIN-EXCHANGE_RATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field EXCHANGE_RATE2
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_FARR_S_MC_RAI_MAIN-EXCHANGE_RATE2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FARR_S_MC_RAI_MAIN-EXCHANGE_RATE2.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit RRQUT, internal->external for field QUANTITY
CALL FUNCTION 'CONVERSION_EXIT_RRQUT_OUTPUT'
  EXPORTING
    input =                      WA_FARR_S_MC_RAI_MAIN-QUANTITY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FARR_S_MC_RAI_MAIN-QUANTITY.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field ORIGDOC_LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FARR_S_MC_RAI_MAIN-ORIGDOC_LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FARR_S_MC_RAI_MAIN-ORIGDOC_LOGSYS.
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_FARR_S_MC_RAI_MAIN_STR, 
SRCDOC_COMP TYPE STRING,
SRCDOC_LOGSYS TYPE STRING,
SRCDOC_TYPE TYPE STRING,
SRCDOC_ID TYPE STRING,
TIMESTAMP_UTC TYPE STRING,
RAIC_TYPE TYPE STRING,
RAIC TYPE STRING,
STATUS TYPE STRING,
VERSION TYPE STRING,
KUNNR TYPE STRING,
PARTNER TYPE STRING,
BUKRS TYPE STRING,
WAERS TYPE STRING,
HWAER TYPE STRING,
HWAE2 TYPE STRING,
EXCHANGE_RATE TYPE STRING,
EXCHANGE_RATE2 TYPE STRING,
HEADER_ID TYPE STRING,
ITEM_ID TYPE STRING,
REFERENCE_TYPE TYPE STRING,
REFERENCE_ID TYPE STRING,
QUANTITY_REL TYPE STRING,
QUANTITY TYPE STRING,
QUANTITY_UNIT TYPE STRING,
START_DATE TYPE STRING,
END_DATE TYPE STRING,
POSTING_DATE TYPE STRING,
DUE_DATE TYPE STRING,
EVENT_DATE TYPE STRING,
EVENT_TYPE TYPE STRING,
ORIGDOC_COMP TYPE STRING,
ORIGDOC_LOGSYS TYPE STRING,
ORIGDOC_TYPE TYPE STRING,
ORIGDOC_ID TYPE STRING,
FINAL_INVOICE TYPE STRING,
INVOICE_TYPE TYPE STRING,
INITIAL_LOAD TYPE STRING,
INVOICE_CAT TYPE STRING,
MIG_PACKAGE TYPE STRING,
BETRW TYPE STRING,
BETRH TYPE STRING,
BETR2 TYPE STRING,
COND_MAIN_P_CNT TYPE STRING,
COND_MAIN_C_CNT TYPE STRING,
COND_ACNT_CNT TYPE STRING,
COND_NOACNT_CNT TYPE STRING,
COND_PARTIAL_CNT TYPE STRING,
FLAG_HAS_C_COND TYPE STRING,
FLAG_HAS_P_COND TYPE STRING,
FLAG_RAI2PO_MI TYPE STRING,
FLAG_RAI4PO_MI TYPE STRING,
FLAG_MPACK_ISSUE TYPE STRING,
FLAG_MULTI_MI TYPE STRING,
T_COND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FARR_S_MC_RAI_MAIN_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_FARR_S_MC_RAI_MAIN_STR-SRCDOC_COMP sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-SRCDOC_LOGSYS sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-SRCDOC_TYPE sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-SRCDOC_ID sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-TIMESTAMP_UTC sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-RAIC_TYPE sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-RAIC sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-STATUS sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-VERSION sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-KUNNR sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-PARTNER sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-BUKRS sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-WAERS sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-HWAER sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-HWAE2 sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-EXCHANGE_RATE sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-EXCHANGE_RATE2 sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-HEADER_ID sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-ITEM_ID sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-REFERENCE_TYPE sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-REFERENCE_ID sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-QUANTITY_REL sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-QUANTITY sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-QUANTITY_UNIT sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-START_DATE sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-END_DATE sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-POSTING_DATE sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-DUE_DATE sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-EVENT_DATE sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-EVENT_TYPE sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-ORIGDOC_COMP sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-ORIGDOC_LOGSYS sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-ORIGDOC_TYPE sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-ORIGDOC_ID sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-FINAL_INVOICE sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-INVOICE_TYPE sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-INITIAL_LOAD sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-INVOICE_CAT sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-MIG_PACKAGE sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-BETRW sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-BETRH sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-BETR2 sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-COND_MAIN_P_CNT sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-COND_MAIN_C_CNT sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-COND_ACNT_CNT sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-COND_NOACNT_CNT sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-COND_PARTIAL_CNT sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-FLAG_HAS_C_COND sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-FLAG_HAS_P_COND sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-FLAG_RAI2PO_MI sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-FLAG_RAI4PO_MI sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-FLAG_MPACK_ISSUE sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-FLAG_MULTI_MI sy-vline 
WA_FARR_S_MC_RAI_MAIN_STR-T_COND sy-vline      INTO ld_text SEPARATED BY SPACE.

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