ABAP Select data from SAP table IDCFM_BST_HIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDCFM_BST_HIST
*  INTO TABLE @DATA(IT_IDCFM_BST_HIST2).
*--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_IDCFM_BST_HIST INDEX 1 INTO DATA(WA_IDCFM_BST_HIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDCFM_BST_HIST>-MANDT = 1.
<IDCFM_BST_HIST>-BUKRS = 1.
<IDCFM_BST_HIST>-RANL = 1.
<IDCFM_BST_HIST>-RFHA = 1.
<IDCFM_BST_HIST>-DDISPO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDCFM_BST_HIST-SBEWART, sy-vline,
  WA_IDCFM_BST_HIST-BELNR, sy-vline,
  WA_IDCFM_BST_HIST-GJAHR, sy-vline,
  WA_IDCFM_BST_HIST-BUDAT, sy-vline,
  WA_IDCFM_BST_HIST-TRAN_TYPE, sy-vline,
  WA_IDCFM_BST_HIST-BBWHR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDCFM_BST_HIST 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_IDCFM_BST_HIST 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_IDCFM_BST_HIST INTO WA_IDCFM_BST_HIST.


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

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

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

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

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

*Conversion exit GJAHR, internal->external for field STJAH
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IDCFM_BST_HIST-STJAH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCFM_BST_HIST-STJAH.
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_IDCFM_BST_HIST_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
RANL TYPE STRING,
RFHA TYPE STRING,
DDISPO TYPE STRING,
SBEWART TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUDAT TYPE STRING,
TRAN_TYPE TYPE STRING,
BBWHR TYPE STRING,
SBWHR TYPE STRING,
BHWHR TYPE STRING,
TRAN_FROM TYPE STRING,
TRAN_TO TYPE STRING,
TRAN_METHOD TYPE STRING,
STBLG TYPE STRING,
STJAH TYPE STRING,
R_RVRS TYPE STRING,
FLOWVAL TYPE STRING,
VALUATION_AREA TYPE STRING,
FLOWTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDCFM_BST_HIST_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_IDCFM_BST_HIST_STR-MANDT sy-vline 
WA_IDCFM_BST_HIST_STR-BUKRS sy-vline 
WA_IDCFM_BST_HIST_STR-RANL sy-vline 
WA_IDCFM_BST_HIST_STR-RFHA sy-vline 
WA_IDCFM_BST_HIST_STR-DDISPO sy-vline 
WA_IDCFM_BST_HIST_STR-SBEWART sy-vline 
WA_IDCFM_BST_HIST_STR-BELNR sy-vline 
WA_IDCFM_BST_HIST_STR-GJAHR sy-vline 
WA_IDCFM_BST_HIST_STR-BUDAT sy-vline 
WA_IDCFM_BST_HIST_STR-TRAN_TYPE sy-vline 
WA_IDCFM_BST_HIST_STR-BBWHR sy-vline 
WA_IDCFM_BST_HIST_STR-SBWHR sy-vline 
WA_IDCFM_BST_HIST_STR-BHWHR sy-vline 
WA_IDCFM_BST_HIST_STR-TRAN_FROM sy-vline 
WA_IDCFM_BST_HIST_STR-TRAN_TO sy-vline 
WA_IDCFM_BST_HIST_STR-TRAN_METHOD sy-vline 
WA_IDCFM_BST_HIST_STR-STBLG sy-vline 
WA_IDCFM_BST_HIST_STR-STJAH sy-vline 
WA_IDCFM_BST_HIST_STR-R_RVRS sy-vline 
WA_IDCFM_BST_HIST_STR-FLOWVAL sy-vline 
WA_IDCFM_BST_HIST_STR-VALUATION_AREA sy-vline 
WA_IDCFM_BST_HIST_STR-FLOWTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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