ABAP Select data from SAP table BKK82 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BKK82 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 BKK82. 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 BKK82 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_BKK82 TYPE STANDARD TABLE OF BKK82,
      WA_BKK82 TYPE BKK82,
      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: <BKK82> TYPE BKK82.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BKK82.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BKK82
  INTO TABLE IT_BKK82.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BKK82
*  INTO TABLE @DATA(IT_BKK822).
*--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_BKK82 INDEX 1 INTO DATA(WA_BKK822).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BKK82 ASSIGNING <BKK82>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BKK82>-MANDANT = 1.
<BKK82>-CONDAREA = 1.
<BKK82>-COND = 1.
<BKK82>-VALIDFROM = 1.
<BKK82>-CONDLEVEL = 1.

ENDLOOP.

LOOP AT IT_BKK82 INTO WA_BKK82.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BKK82-AMOUNTLIM, sy-vline,
  WA_BKK82-IND_AMOUNT, sy-vline,
  WA_BKK82-COUNTFROM, sy-vline,
  WA_BKK82-VALIDTO, sy-vline,
  WA_BKK82-ULTIMO, sy-vline,
  WA_BKK82-PKOND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BKK82 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_BKK82 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_BKK82 INTO WA_BKK82.


*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 INVDT, internal->external for field VALIDFROM
CALL FUNCTION 'CONVERSION_EXIT_INVDT_OUTPUT'
  EXPORTING
    input =                      WA_BKK82-VALIDFROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BKK82-VALIDFROM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit INVDT, internal->external for field VALIDTO
CALL FUNCTION 'CONVERSION_EXIT_INVDT_OUTPUT'
  EXPORTING
    input =                      WA_BKK82-VALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BKK82-VALIDTO.
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_BKK82_STR, 
MANDANT TYPE STRING,
CONDAREA TYPE STRING,
COND TYPE STRING,
VALIDFROM TYPE STRING,
CONDLEVEL TYPE STRING,
AMOUNTLIM TYPE STRING,
IND_AMOUNT TYPE STRING,
COUNTFROM TYPE STRING,
VALIDTO TYPE STRING,
ULTIMO TYPE STRING,
PKOND TYPE STRING,
SZSREF TYPE STRING,
MARKUP TYPE STRING,
LOWLIMIT TYPE STRING,
UPLIMIT TYPE STRING,
AMOUNT TYPE STRING,
LOWAMOUNT TYPE STRING,
UPAMOUNT TYPE STRING,
DEVIDER TYPE STRING,
CURR TYPE STRING,
NUMBDAYS TYPE STRING,
FLGLOCK TYPE STRING,
TOLDAYS_P TYPE STRING,
TOLDAYS_M TYPE STRING,
XCALENDAR TYPE STRING,
XEXPINT TYPE STRING,
AMMRHYZV TYPE STRING,
AMOUNTLIM_AVG TYPE STRING,
AMOUNTLIM_COMBO TYPE STRING,
AMOUNTLIM_C_AVG TYPE STRING,
CRUSER TYPE STRING,
CRDATE TYPE STRING,
CRTIME TYPE STRING,
CHGUSER TYPE STRING,
CHGDATE TYPE STRING,
CHGTIME TYPE STRING,
RELUSER TYPE STRING,
RELDATE TYPE STRING,
RELTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BKK82_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_BKK82_STR-MANDANT sy-vline 
WA_BKK82_STR-CONDAREA sy-vline 
WA_BKK82_STR-COND sy-vline 
WA_BKK82_STR-VALIDFROM sy-vline 
WA_BKK82_STR-CONDLEVEL sy-vline 
WA_BKK82_STR-AMOUNTLIM sy-vline 
WA_BKK82_STR-IND_AMOUNT sy-vline 
WA_BKK82_STR-COUNTFROM sy-vline 
WA_BKK82_STR-VALIDTO sy-vline 
WA_BKK82_STR-ULTIMO sy-vline 
WA_BKK82_STR-PKOND sy-vline 
WA_BKK82_STR-SZSREF sy-vline 
WA_BKK82_STR-MARKUP sy-vline 
WA_BKK82_STR-LOWLIMIT sy-vline 
WA_BKK82_STR-UPLIMIT sy-vline 
WA_BKK82_STR-AMOUNT sy-vline 
WA_BKK82_STR-LOWAMOUNT sy-vline 
WA_BKK82_STR-UPAMOUNT sy-vline 
WA_BKK82_STR-DEVIDER sy-vline 
WA_BKK82_STR-CURR sy-vline 
WA_BKK82_STR-NUMBDAYS sy-vline 
WA_BKK82_STR-FLGLOCK sy-vline 
WA_BKK82_STR-TOLDAYS_P sy-vline 
WA_BKK82_STR-TOLDAYS_M sy-vline 
WA_BKK82_STR-XCALENDAR sy-vline 
WA_BKK82_STR-XEXPINT sy-vline 
WA_BKK82_STR-AMMRHYZV sy-vline 
WA_BKK82_STR-AMOUNTLIM_AVG sy-vline 
WA_BKK82_STR-AMOUNTLIM_COMBO sy-vline 
WA_BKK82_STR-AMOUNTLIM_C_AVG sy-vline 
WA_BKK82_STR-CRUSER sy-vline 
WA_BKK82_STR-CRDATE sy-vline 
WA_BKK82_STR-CRTIME sy-vline 
WA_BKK82_STR-CHGUSER sy-vline 
WA_BKK82_STR-CHGDATE sy-vline 
WA_BKK82_STR-CHGTIME sy-vline 
WA_BKK82_STR-RELUSER sy-vline 
WA_BKK82_STR-RELDATE sy-vline 
WA_BKK82_STR-RELTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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