ABAP Select data from SAP table FICA_CASHREG_VOID_S_REF_ITEMS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FICA_CASHREG_VOID_S_REF_ITEMS
*  INTO TABLE @DATA(IT_FICA_CASHREG_VOID_S_REF_ITEMS2).
*--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_FICA_CASHREG_VOID_S_REF_ITEMS INDEX 1 INTO DATA(WA_FICA_CASHREG_VOID_S_REF_ITEMS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FICA_CASHREG_VOID_S_REF_ITEMS>-WA_REF_ITEMS = 1.
<FICA_CASHREG_VOID_S_REF_ITEMS>-CRBEL = 1.
<FICA_CASHREG_VOID_S_REF_ITEMS>-RCPNR = 1.
<FICA_CASHREG_VOID_S_REF_ITEMS>-ERDAT = 1.
<FICA_CASHREG_VOID_S_REF_ITEMS>-ERZEIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FICA_CASHREG_VOID_S_REF_ITEMS-WA_CASHREG_IT, sy-vline,
  WA_FICA_CASHREG_VOID_S_REF_ITEMS-RECEIPT_ID, sy-vline,
  WA_FICA_CASHREG_VOID_S_REF_ITEMS-CASHBOX_ID, sy-vline,
  WA_FICA_CASHREG_VOID_S_REF_ITEMS-SIG_INACTIVE, sy-vline,
  WA_FICA_CASHREG_VOID_S_REF_ITEMS-JWS_PAYLOAD, sy-vline,
  WA_FICA_CASHREG_VOID_S_REF_ITEMS-MANDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FICA_CASHREG_VOID_S_REF_ITEMS 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_FICA_CASHREG_VOID_S_REF_ITEMS 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_FICA_CASHREG_VOID_S_REF_ITEMS INTO WA_FICA_CASHREG_VOID_S_REF_ITEMS.


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

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

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

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

*Conversion exit ALPHA, internal->external for field RCPNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FICA_CASHREG_VOID_S_REF_ITEMS-RCPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FICA_CASHREG_VOID_S_REF_ITEMS-RCPNR.
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_FICA_CASHREG_VOID_S_REF_ITEMS_STR, 
WA_REF_ITEMS TYPE STRING,
CRBEL TYPE STRING,
RCPNR TYPE STRING,
ERDAT TYPE STRING,
ERZEIT TYPE STRING,
WA_CASHREG_IT TYPE STRING,
RECEIPT_ID TYPE STRING,
CASHBOX_ID TYPE STRING,
SIG_INACTIVE TYPE STRING,
JWS_PAYLOAD TYPE STRING,
MANDT TYPE STRING,
BUKRS TYPE STRING,
OFFIC TYPE STRING,
CHDSK TYPE STRING,
CRBEL TYPE STRING,
RCPNR TYPE STRING,
CRDTY TYPE STRING,
PAYTP TYPE STRING,
PRCTP TYPE STRING,
ERNAM TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
WAERS TYPE STRING,
BETRZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FICA_CASHREG_VOID_S_REF_ITEMS_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_FICA_CASHREG_VOID_S_REF_ITEMS_STR-WA_REF_ITEMS sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-CRBEL sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-RCPNR sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-ERDAT sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-ERZEIT sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-WA_CASHREG_IT sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-RECEIPT_ID sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-CASHBOX_ID sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-SIG_INACTIVE sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-JWS_PAYLOAD sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-MANDT sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-BUKRS sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-OFFIC sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-CHDSK sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-CRBEL sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-RCPNR sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-CRDTY sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-PAYTP sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-PRCTP sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-ERNAM sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-CPUDT sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-CPUTM sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-WAERS sy-vline 
WA_FICA_CASHREG_VOID_S_REF_ITEMS_STR-BETRZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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