ABAP Select data from SAP table CFIN_AV_SI_ROOT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CFIN_AV_SI_ROOT
*  INTO TABLE @DATA(IT_CFIN_AV_SI_ROOT2).
*--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_CFIN_AV_SI_ROOT INDEX 1 INTO DATA(WA_CFIN_AV_SI_ROOT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CFIN_AV_SI_ROOT>-MANDT = 1.
<CFIN_AV_SI_ROOT>-AV_DBKEY = 1.
<CFIN_AV_SI_ROOT>-AV_CHANGEDTIME = 1.
<CFIN_AV_SI_ROOT>-AV_CHANGEUSER = 1.
<CFIN_AV_SI_ROOT>-AV_CREATEDTIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CFIN_AV_SI_ROOT-AV_CREATEUSER, sy-vline,
  WA_CFIN_AV_SI_ROOT-FINS_LOGSYS, sy-vline,
  WA_CFIN_AV_SI_ROOT-BELNR, sy-vline,
  WA_CFIN_AV_SI_ROOT-GJAHR, sy-vline,
  WA_CFIN_AV_SI_ROOT-BLDAT, sy-vline,
  WA_CFIN_AV_SI_ROOT-BUDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CFIN_AV_SI_ROOT 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_CFIN_AV_SI_ROOT 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_CFIN_AV_SI_ROOT INTO WA_CFIN_AV_SI_ROOT.


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

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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CFIN_AV_SI_ROOT-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CFIN_AV_SI_ROOT-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field STJAH
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CFIN_AV_SI_ROOT-STJAH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CFIN_AV_SI_ROOT-STJAH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CFIN_AV_SI_ROOT-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CFIN_AV_SI_ROOT-LIFNR.
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_CFIN_AV_SI_ROOT_STR, 
MANDT TYPE STRING,
AV_DBKEY TYPE STRING,
AV_CHANGEDTIME TYPE STRING,
AV_CHANGEUSER TYPE STRING,
AV_CREATEDTIME TYPE STRING,
AV_CREATEUSER TYPE STRING,
FINS_LOGSYS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
BLART TYPE STRING,
STBLG TYPE STRING,
STJAH TYPE STRING,
IVTYP TYPE STRING,
WAERS TYPE STRING,
VGART TYPE STRING,
BUKRS TYPE STRING,
LIFNR TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
RBSTAT TYPE STRING,
LOGMX_UUID TYPE STRING,
IUUC_OPERAT_FLAG TYPE STRING,
XRECH TYPE STRING,
DUMMY_AVSI_INCL_EEW_PS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CFIN_AV_SI_ROOT_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_CFIN_AV_SI_ROOT_STR-MANDT sy-vline 
WA_CFIN_AV_SI_ROOT_STR-AV_DBKEY sy-vline 
WA_CFIN_AV_SI_ROOT_STR-AV_CHANGEDTIME sy-vline 
WA_CFIN_AV_SI_ROOT_STR-AV_CHANGEUSER sy-vline 
WA_CFIN_AV_SI_ROOT_STR-AV_CREATEDTIME sy-vline 
WA_CFIN_AV_SI_ROOT_STR-AV_CREATEUSER sy-vline 
WA_CFIN_AV_SI_ROOT_STR-FINS_LOGSYS sy-vline 
WA_CFIN_AV_SI_ROOT_STR-BELNR sy-vline 
WA_CFIN_AV_SI_ROOT_STR-GJAHR sy-vline 
WA_CFIN_AV_SI_ROOT_STR-BLDAT sy-vline 
WA_CFIN_AV_SI_ROOT_STR-BUDAT sy-vline 
WA_CFIN_AV_SI_ROOT_STR-BLART sy-vline 
WA_CFIN_AV_SI_ROOT_STR-STBLG sy-vline 
WA_CFIN_AV_SI_ROOT_STR-STJAH sy-vline 
WA_CFIN_AV_SI_ROOT_STR-IVTYP sy-vline 
WA_CFIN_AV_SI_ROOT_STR-WAERS sy-vline 
WA_CFIN_AV_SI_ROOT_STR-VGART sy-vline 
WA_CFIN_AV_SI_ROOT_STR-BUKRS sy-vline 
WA_CFIN_AV_SI_ROOT_STR-LIFNR sy-vline 
WA_CFIN_AV_SI_ROOT_STR-CPUDT sy-vline 
WA_CFIN_AV_SI_ROOT_STR-CPUTM sy-vline 
WA_CFIN_AV_SI_ROOT_STR-RBSTAT sy-vline 
WA_CFIN_AV_SI_ROOT_STR-LOGMX_UUID sy-vline 
WA_CFIN_AV_SI_ROOT_STR-IUUC_OPERAT_FLAG sy-vline 
WA_CFIN_AV_SI_ROOT_STR-XRECH sy-vline 
WA_CFIN_AV_SI_ROOT_STR-DUMMY_AVSI_INCL_EEW_PS sy-vline      INTO ld_text SEPARATED BY SPACE.

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