ABAP Select data from SAP table BKK96 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BKK96 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 BKK96. 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 BKK96 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_BKK96 TYPE STANDARD TABLE OF BKK96,
      WA_BKK96 TYPE BKK96,
      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: <BKK96> TYPE BKK96.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BKK96.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BKK96
  INTO TABLE IT_BKK96.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BKK96
*  INTO TABLE @DATA(IT_BKK962).
*--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_BKK96 INDEX 1 INTO DATA(WA_BKK962).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BKK96 ASSIGNING <BKK96>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BKK96>-MANDT = 1.
<BKK96>-BKKRS = 1.
<BKK96>-ACNUM_INT = 1.
<BKK96>-BALOBJCATG = 1.
<BKK96>-CLOS_TYP = 1.

ENDLOOP.

LOOP AT IT_BKK96 INTO WA_BKK96.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BKK96-CLOS_YEAR, sy-vline,
  WA_BKK96-CLOS_NR, sy-vline,
  WA_BKK96-CLOS_NRADD, sy-vline,
  WA_BKK96-TURNOVER_CLASS, sy-vline,
  WA_BKK96-CONDCATG, sy-vline,
  WA_BKK96-NUMB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BKK96 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_BKK96 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_BKK96 INTO WA_BKK96.


*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 ACNUM_INT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BKK96-ACNUM_INT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BKK96-ACNUM_INT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field POOL_METH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BKK96-POOL_METH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BKK96-POOL_METH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACCOUNT2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BKK96-ACCOUNT2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BKK96-ACCOUNT2.
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_BKK96_STR, 
MANDT TYPE STRING,
BKKRS TYPE STRING,
ACNUM_INT TYPE STRING,
BALOBJCATG TYPE STRING,
CLOS_TYP TYPE STRING,
CLOS_YEAR TYPE STRING,
CLOS_NR TYPE STRING,
CLOS_NRADD TYPE STRING,
TURNOVER_CLASS TYPE STRING,
CONDCATG TYPE STRING,
NUMB TYPE STRING,
POSTCATG_I TYPE STRING,
CALCFROM TYPE STRING,
ULTIFROM TYPE STRING,
BASE_CURR TYPE STRING,
BASE TYPE STRING,
CALCTO TYPE STRING,
ULTITO TYPE STRING,
DAYS_NUMB TYPE STRING,
DAYS_BASE TYPE STRING,
RATE TYPE STRING,
CURR TYPE STRING,
AMOUNT TYPE STRING,
NCUR TYPE STRING,
NAMOUNT TYPE STRING,
ITEMCOUNT TYPE STRING,
ITEMCNT_O TYPE STRING,
FEES_BASE TYPE STRING,
DEVIDER TYPE STRING,
POOL_METH TYPE STRING,
CNTR_ID TYPE STRING,
CONDAREA TYPE STRING,
BKKRS2 TYPE STRING,
ACCOUNT2 TYPE STRING,
CONDTIME TYPE STRING,
CONDTIME_U TYPE STRING,
TIMEPROPCALC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BKK96_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_BKK96_STR-MANDT sy-vline 
WA_BKK96_STR-BKKRS sy-vline 
WA_BKK96_STR-ACNUM_INT sy-vline 
WA_BKK96_STR-BALOBJCATG sy-vline 
WA_BKK96_STR-CLOS_TYP sy-vline 
WA_BKK96_STR-CLOS_YEAR sy-vline 
WA_BKK96_STR-CLOS_NR sy-vline 
WA_BKK96_STR-CLOS_NRADD sy-vline 
WA_BKK96_STR-TURNOVER_CLASS sy-vline 
WA_BKK96_STR-CONDCATG sy-vline 
WA_BKK96_STR-NUMB sy-vline 
WA_BKK96_STR-POSTCATG_I sy-vline 
WA_BKK96_STR-CALCFROM sy-vline 
WA_BKK96_STR-ULTIFROM sy-vline 
WA_BKK96_STR-BASE_CURR sy-vline 
WA_BKK96_STR-BASE sy-vline 
WA_BKK96_STR-CALCTO sy-vline 
WA_BKK96_STR-ULTITO sy-vline 
WA_BKK96_STR-DAYS_NUMB sy-vline 
WA_BKK96_STR-DAYS_BASE sy-vline 
WA_BKK96_STR-RATE sy-vline 
WA_BKK96_STR-CURR sy-vline 
WA_BKK96_STR-AMOUNT sy-vline 
WA_BKK96_STR-NCUR sy-vline 
WA_BKK96_STR-NAMOUNT sy-vline 
WA_BKK96_STR-ITEMCOUNT sy-vline 
WA_BKK96_STR-ITEMCNT_O sy-vline 
WA_BKK96_STR-FEES_BASE sy-vline 
WA_BKK96_STR-DEVIDER sy-vline 
WA_BKK96_STR-POOL_METH sy-vline 
WA_BKK96_STR-CNTR_ID sy-vline 
WA_BKK96_STR-CONDAREA sy-vline 
WA_BKK96_STR-BKKRS2 sy-vline 
WA_BKK96_STR-ACCOUNT2 sy-vline 
WA_BKK96_STR-CONDTIME sy-vline 
WA_BKK96_STR-CONDTIME_U sy-vline 
WA_BKK96_STR-TIMEPROPCALC sy-vline      INTO ld_text SEPARATED BY SPACE.

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