ABAP Select data from SAP table FINSS_MIG_HIST_BAL_ITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FINSS_MIG_HIST_BAL_ITEM
*  INTO TABLE @DATA(IT_FINSS_MIG_HIST_BAL_ITEM2).
*--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_FINSS_MIG_HIST_BAL_ITEM INDEX 1 INTO DATA(WA_FINSS_MIG_HIST_BAL_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FINSS_MIG_HIST_BAL_ITEM>-SENDER_TECHNICAL_ID = 1.
<FINSS_MIG_HIST_BAL_ITEM>-COMP_CODE = 1.
<FINSS_MIG_HIST_BAL_ITEM>-ACC_NUM = 1.
<FINSS_MIG_HIST_BAL_ITEM>-SEGMENT = 1.
<FINSS_MIG_HIST_BAL_ITEM>-PROFIT_CTR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FINSS_MIG_HIST_BAL_ITEM-COSTCENTER, sy-vline,
  WA_FINSS_MIG_HIST_BAL_ITEM-RLDNR, sy-vline,
  WA_FINSS_MIG_HIST_BAL_ITEM-MONTH, sy-vline,
  WA_FINSS_MIG_HIST_BAL_ITEM-FISC_YEAR, sy-vline,
  WA_FINSS_MIG_HIST_BAL_ITEM-CURR_TRANSCUR, sy-vline,
  WA_FINSS_MIG_HIST_BAL_ITEM-AMT_TRANSCUR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FINSS_MIG_HIST_BAL_ITEM 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_FINSS_MIG_HIST_BAL_ITEM 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_FINSS_MIG_HIST_BAL_ITEM INTO WA_FINSS_MIG_HIST_BAL_ITEM.


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

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

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

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

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

*Conversion exit GJAHR, internal->external for field FISC_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FINSS_MIG_HIST_BAL_ITEM-FISC_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINSS_MIG_HIST_BAL_ITEM-FISC_YEAR.
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_FINSS_MIG_HIST_BAL_ITEM_STR, 
SENDER_TECHNICAL_ID TYPE STRING,
COMP_CODE TYPE STRING,
ACC_NUM TYPE STRING,
SEGMENT TYPE STRING,
PROFIT_CTR TYPE STRING,
COSTCENTER TYPE STRING,
RLDNR TYPE STRING,
MONTH TYPE STRING,
FISC_YEAR TYPE STRING,
CURR_TRANSCUR TYPE STRING,
AMT_TRANSCUR TYPE STRING,
CURR_COMPCUR TYPE STRING,
AMT_COMPCUR TYPE STRING,
CURR_GROUPCUR TYPE STRING,
AMT_GROUPCUR TYPE STRING,
CURR_FREECUR TYPE STRING,
AMT_FREECUR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FINSS_MIG_HIST_BAL_ITEM_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_FINSS_MIG_HIST_BAL_ITEM_STR-SENDER_TECHNICAL_ID sy-vline 
WA_FINSS_MIG_HIST_BAL_ITEM_STR-COMP_CODE sy-vline 
WA_FINSS_MIG_HIST_BAL_ITEM_STR-ACC_NUM sy-vline 
WA_FINSS_MIG_HIST_BAL_ITEM_STR-SEGMENT sy-vline 
WA_FINSS_MIG_HIST_BAL_ITEM_STR-PROFIT_CTR sy-vline 
WA_FINSS_MIG_HIST_BAL_ITEM_STR-COSTCENTER sy-vline 
WA_FINSS_MIG_HIST_BAL_ITEM_STR-RLDNR sy-vline 
WA_FINSS_MIG_HIST_BAL_ITEM_STR-MONTH sy-vline 
WA_FINSS_MIG_HIST_BAL_ITEM_STR-FISC_YEAR sy-vline 
WA_FINSS_MIG_HIST_BAL_ITEM_STR-CURR_TRANSCUR sy-vline 
WA_FINSS_MIG_HIST_BAL_ITEM_STR-AMT_TRANSCUR sy-vline 
WA_FINSS_MIG_HIST_BAL_ITEM_STR-CURR_COMPCUR sy-vline 
WA_FINSS_MIG_HIST_BAL_ITEM_STR-AMT_COMPCUR sy-vline 
WA_FINSS_MIG_HIST_BAL_ITEM_STR-CURR_GROUPCUR sy-vline 
WA_FINSS_MIG_HIST_BAL_ITEM_STR-AMT_GROUPCUR sy-vline 
WA_FINSS_MIG_HIST_BAL_ITEM_STR-CURR_FREECUR sy-vline 
WA_FINSS_MIG_HIST_BAL_ITEM_STR-AMT_FREECUR sy-vline      INTO ld_text SEPARATED BY SPACE.

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