ABAP Select data from SAP table BKK92 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BKK92 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 BKK92. 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 BKK92 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_BKK92 TYPE STANDARD TABLE OF BKK92,
      WA_BKK92 TYPE BKK92,
      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: <BKK92> TYPE BKK92.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BKK92.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BKK92
  INTO TABLE IT_BKK92.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BKK92
*  INTO TABLE @DATA(IT_BKK922).
*--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_BKK92 INDEX 1 INTO DATA(WA_BKK922).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BKK92 ASSIGNING <BKK92>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BKK92>-MANDT = 1.
<BKK92>-BKKRS = 1.
<BKK92>-ACNUM_INT = 1.
<BKK92>-CLOS_TYP = 1.
<BKK92>-CLOS_YEAR = 1.

ENDLOOP.

LOOP AT IT_BKK92 INTO WA_BKK92.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BKK92-CLOS_NR, sy-vline,
  WA_BKK92-CLOS_NRADD, sy-vline,
  WA_BKK92-TURNOVER_CLASS, sy-vline,
  WA_BKK92-CURR, sy-vline,
  WA_BKK92-START_DATE, sy-vline,
  WA_BKK92-END_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BKK92 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_BKK92 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_BKK92 INTO WA_BKK92.


*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_BKK92-ACNUM_INT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BKK92-ACNUM_INT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROGNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BKK92-PROGNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BKK92-PROGNO.
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_BKK92_STR, 
MANDT TYPE STRING,
BKKRS TYPE STRING,
ACNUM_INT TYPE STRING,
CLOS_TYP TYPE STRING,
CLOS_YEAR TYPE STRING,
CLOS_NR TYPE STRING,
CLOS_NRADD TYPE STRING,
TURNOVER_CLASS TYPE STRING,
CURR TYPE STRING,
START_DATE TYPE STRING,
END_DATE TYPE STRING,
END_DATE_I TYPE STRING,
DATE_VALUE TYPE STRING,
DATE_POST TYPE STRING,
DEBITS_INT TYPE STRING,
CREDIT_INT TYPE STRING,
OVERDR_INT TYPE STRING,
SUPPLY_INT TYPE STRING,
CREDIT_INT_NEG TYPE STRING,
DEBIT_INT_NEG TYPE STRING,
ADVANC_INT TYPE STRING,
BONUS_INT TYPE STRING,
ITEM_FEE TYPE STRING,
FORW_COST TYPE STRING,
ACCONT_FEE TYPE STRING,
PERIOD_FEE TYPE STRING,
CSTMR_AMT TYPE STRING,
BALANCE TYPE STRING,
WHTAX_AMT TYPE STRING,
LCUR TYPE STRING,
WHTAX_LAMT TYPE STRING,
INTRATE_AV TYPE STRING,
XCONDEXCHANG TYPE STRING,
XACCLO TYPE STRING,
PROGN TYPE STRING,
PROGDATE TYPE STRING,
PROGNO TYPE STRING,
JOBNO TYPE STRING,
CLOS_DATE TYPE STRING,
CLOS_TIME TYPE STRING,
NCUR TYPE STRING,
NBALANCE TYPE STRING,
XNOPOST TYPE STRING,
CSTMR_AMT1 TYPE STRING,
CSTMR_AMT2 TYPE STRING,
CSTMR_AMT3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BKK92_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_BKK92_STR-MANDT sy-vline 
WA_BKK92_STR-BKKRS sy-vline 
WA_BKK92_STR-ACNUM_INT sy-vline 
WA_BKK92_STR-CLOS_TYP sy-vline 
WA_BKK92_STR-CLOS_YEAR sy-vline 
WA_BKK92_STR-CLOS_NR sy-vline 
WA_BKK92_STR-CLOS_NRADD sy-vline 
WA_BKK92_STR-TURNOVER_CLASS sy-vline 
WA_BKK92_STR-CURR sy-vline 
WA_BKK92_STR-START_DATE sy-vline 
WA_BKK92_STR-END_DATE sy-vline 
WA_BKK92_STR-END_DATE_I sy-vline 
WA_BKK92_STR-DATE_VALUE sy-vline 
WA_BKK92_STR-DATE_POST sy-vline 
WA_BKK92_STR-DEBITS_INT sy-vline 
WA_BKK92_STR-CREDIT_INT sy-vline 
WA_BKK92_STR-OVERDR_INT sy-vline 
WA_BKK92_STR-SUPPLY_INT sy-vline 
WA_BKK92_STR-CREDIT_INT_NEG sy-vline 
WA_BKK92_STR-DEBIT_INT_NEG sy-vline 
WA_BKK92_STR-ADVANC_INT sy-vline 
WA_BKK92_STR-BONUS_INT sy-vline 
WA_BKK92_STR-ITEM_FEE sy-vline 
WA_BKK92_STR-FORW_COST sy-vline 
WA_BKK92_STR-ACCONT_FEE sy-vline 
WA_BKK92_STR-PERIOD_FEE sy-vline 
WA_BKK92_STR-CSTMR_AMT sy-vline 
WA_BKK92_STR-BALANCE sy-vline 
WA_BKK92_STR-WHTAX_AMT sy-vline 
WA_BKK92_STR-LCUR sy-vline 
WA_BKK92_STR-WHTAX_LAMT sy-vline 
WA_BKK92_STR-INTRATE_AV sy-vline 
WA_BKK92_STR-XCONDEXCHANG sy-vline 
WA_BKK92_STR-XACCLO sy-vline 
WA_BKK92_STR-PROGN sy-vline 
WA_BKK92_STR-PROGDATE sy-vline 
WA_BKK92_STR-PROGNO sy-vline 
WA_BKK92_STR-JOBNO sy-vline 
WA_BKK92_STR-CLOS_DATE sy-vline 
WA_BKK92_STR-CLOS_TIME sy-vline 
WA_BKK92_STR-NCUR sy-vline 
WA_BKK92_STR-NBALANCE sy-vline 
WA_BKK92_STR-XNOPOST sy-vline 
WA_BKK92_STR-CSTMR_AMT1 sy-vline 
WA_BKK92_STR-CSTMR_AMT2 sy-vline 
WA_BKK92_STR-CSTMR_AMT3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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