ABAP Select data from SAP table IBKK9L into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IBKK9L 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 IBKK9L. 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 IBKK9L 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_IBKK9L TYPE STANDARD TABLE OF IBKK9L,
      WA_IBKK9L TYPE IBKK9L,
      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: <IBKK9L> TYPE IBKK9L.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IBKK9L.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IBKK9L
  INTO TABLE IT_IBKK9L.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IBKK9L
*  INTO TABLE @DATA(IT_IBKK9L2).
*--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_IBKK9L INDEX 1 INTO DATA(WA_IBKK9L2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IBKK9L ASSIGNING <IBKK9L>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IBKK9L>-CONDGR_CAT = 1.
<IBKK9L>-CONDAREA = 1.
<IBKK9L>-CONDGR = 1.
<IBKK9L>-BALOBJCATG = 1.
<IBKK9L>-BKKRS = 1.

ENDLOOP.

LOOP AT IT_IBKK9L INTO WA_IBKK9L.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IBKK9L-ACNUM_INT, sy-vline,
  WA_IBKK9L-CONDCATG, sy-vline,
  WA_IBKK9L-COND, sy-vline,
  WA_IBKK9L-CONDDIF, sy-vline,
  WA_IBKK9L-CONDDIF_V1, sy-vline,
  WA_IBKK9L-CONDDIF_2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IBKK9L 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_IBKK9L 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_IBKK9L INTO WA_IBKK9L.


*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_IBKK9L-ACNUM_INT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKK9L-ACNUM_INT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit INVDT, internal->external for field VALIDTO
CALL FUNCTION 'CONVERSION_EXIT_INVDT_OUTPUT'
  EXPORTING
    input =                      WA_IBKK9L-VALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKK9L-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_IBKK9L_STR, 
CONDGR_CAT TYPE STRING,
CONDAREA TYPE STRING,
CONDGR TYPE STRING,
BALOBJCATG TYPE STRING,
BKKRS TYPE STRING,
ACNUM_INT TYPE STRING,
CONDCATG TYPE STRING,
COND TYPE STRING,
CONDDIF TYPE STRING,
CONDDIF_V1 TYPE STRING,
CONDDIF_2 TYPE STRING,
CONDDIF_V2 TYPE STRING,
XSURCHARGE TYPE STRING,
FLGLOCKED TYPE STRING,
VALIDFROM TYPE STRING,
CURR TYPE STRING,
CALCTYP TYPE STRING,
CONDTIME TYPE STRING,
CONDTIME_U TYPE STRING,
TIMEPROPCALC TYPE STRING,
FREECOUNT TYPE STRING,
COUNTFROM TYPE STRING,
COUNTTO TYPE STRING,
VALIDTO TYPE STRING,
ULTIMO TYPE STRING,
AMOUNT TYPE STRING,
LOWAMOUNT TYPE STRING,
UPAMOUNT TYPE STRING,
DEVIDER TYPE STRING,
RURKONDIND TYPE STRING,
VALIDFROM_C TYPE STRING,
SROUND TYPE STRING,
PRUNIT TYPE STRING,
STANDARD TYPE STRING,
AMOUNTLIM TYPE STRING,
AMOUNTLIM_AVG TYPE STRING,
AMOUNTLIM_COMBO TYPE STRING,
AMOUNTLIM_C_AVG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IBKK9L_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_IBKK9L_STR-CONDGR_CAT sy-vline 
WA_IBKK9L_STR-CONDAREA sy-vline 
WA_IBKK9L_STR-CONDGR sy-vline 
WA_IBKK9L_STR-BALOBJCATG sy-vline 
WA_IBKK9L_STR-BKKRS sy-vline 
WA_IBKK9L_STR-ACNUM_INT sy-vline 
WA_IBKK9L_STR-CONDCATG sy-vline 
WA_IBKK9L_STR-COND sy-vline 
WA_IBKK9L_STR-CONDDIF sy-vline 
WA_IBKK9L_STR-CONDDIF_V1 sy-vline 
WA_IBKK9L_STR-CONDDIF_2 sy-vline 
WA_IBKK9L_STR-CONDDIF_V2 sy-vline 
WA_IBKK9L_STR-XSURCHARGE sy-vline 
WA_IBKK9L_STR-FLGLOCKED sy-vline 
WA_IBKK9L_STR-VALIDFROM sy-vline 
WA_IBKK9L_STR-CURR sy-vline 
WA_IBKK9L_STR-CALCTYP sy-vline 
WA_IBKK9L_STR-CONDTIME sy-vline 
WA_IBKK9L_STR-CONDTIME_U sy-vline 
WA_IBKK9L_STR-TIMEPROPCALC sy-vline 
WA_IBKK9L_STR-FREECOUNT sy-vline 
WA_IBKK9L_STR-COUNTFROM sy-vline 
WA_IBKK9L_STR-COUNTTO sy-vline 
WA_IBKK9L_STR-VALIDTO sy-vline 
WA_IBKK9L_STR-ULTIMO sy-vline 
WA_IBKK9L_STR-AMOUNT sy-vline 
WA_IBKK9L_STR-LOWAMOUNT sy-vline 
WA_IBKK9L_STR-UPAMOUNT sy-vline 
WA_IBKK9L_STR-DEVIDER sy-vline 
WA_IBKK9L_STR-RURKONDIND sy-vline 
WA_IBKK9L_STR-VALIDFROM_C sy-vline 
WA_IBKK9L_STR-SROUND sy-vline 
WA_IBKK9L_STR-PRUNIT sy-vline 
WA_IBKK9L_STR-STANDARD sy-vline 
WA_IBKK9L_STR-AMOUNTLIM sy-vline 
WA_IBKK9L_STR-AMOUNTLIM_AVG sy-vline 
WA_IBKK9L_STR-AMOUNTLIM_COMBO sy-vline 
WA_IBKK9L_STR-AMOUNTLIM_C_AVG sy-vline      INTO ld_text SEPARATED BY SPACE.

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