ABAP Select data from SAP table IBKK_DYN_PER_BS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IBKK_DYN_PER_BS
*  INTO TABLE @DATA(IT_IBKK_DYN_PER_BS2).
*--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_IBKK_DYN_PER_BS INDEX 1 INTO DATA(WA_IBKK_DYN_PER_BS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IBKK_DYN_PER_BS>-PERIOD = 1.
<IBKK_DYN_PER_BS>-PER_UNIT_D = 1.
<IBKK_DYN_PER_BS>-PER_UNIT_W = 1.
<IBKK_DYN_PER_BS>-PER_UNIT_M = 1.
<IBKK_DYN_PER_BS>-PER_UNIT_Q = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IBKK_DYN_PER_BS-PER_UNIT_Y, sy-vline,
  WA_IBKK_DYN_PER_BS-WDAY, sy-vline,
  WA_IBKK_DYN_PER_BS-WKEY_DATE, sy-vline,
  WA_IBKK_DYN_PER_BS-MKEY_DATE, sy-vline,
  WA_IBKK_DYN_PER_BS-QKEY_DATE, sy-vline,
  WA_IBKK_DYN_PER_BS-YKEY_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IBKK_DYN_PER_BS 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_IBKK_DYN_PER_BS 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_IBKK_DYN_PER_BS INTO WA_IBKK_DYN_PER_BS.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_IBKK_DYN_PER_BS_STR, 
PERIOD TYPE STRING,
PER_UNIT_D TYPE STRING,
PER_UNIT_W TYPE STRING,
PER_UNIT_M TYPE STRING,
PER_UNIT_Q TYPE STRING,
PER_UNIT_Y TYPE STRING,
WDAY TYPE STRING,
WKEY_DATE TYPE STRING,
MKEY_DATE TYPE STRING,
QKEY_DATE TYPE STRING,
YKEY_DATE TYPE STRING,
KEY_DATE TYPE STRING,
NEXT_DATE TYPE STRING,
CURR_YEAR TYPE STRING,
CURR_NR TYPE STRING,
CURR_NR6 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IBKK_DYN_PER_BS_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_IBKK_DYN_PER_BS_STR-PERIOD sy-vline 
WA_IBKK_DYN_PER_BS_STR-PER_UNIT_D sy-vline 
WA_IBKK_DYN_PER_BS_STR-PER_UNIT_W sy-vline 
WA_IBKK_DYN_PER_BS_STR-PER_UNIT_M sy-vline 
WA_IBKK_DYN_PER_BS_STR-PER_UNIT_Q sy-vline 
WA_IBKK_DYN_PER_BS_STR-PER_UNIT_Y sy-vline 
WA_IBKK_DYN_PER_BS_STR-WDAY sy-vline 
WA_IBKK_DYN_PER_BS_STR-WKEY_DATE sy-vline 
WA_IBKK_DYN_PER_BS_STR-MKEY_DATE sy-vline 
WA_IBKK_DYN_PER_BS_STR-QKEY_DATE sy-vline 
WA_IBKK_DYN_PER_BS_STR-YKEY_DATE sy-vline 
WA_IBKK_DYN_PER_BS_STR-KEY_DATE sy-vline 
WA_IBKK_DYN_PER_BS_STR-NEXT_DATE sy-vline 
WA_IBKK_DYN_PER_BS_STR-CURR_YEAR sy-vline 
WA_IBKK_DYN_PER_BS_STR-CURR_NR sy-vline 
WA_IBKK_DYN_PER_BS_STR-CURR_NR6 sy-vline      INTO ld_text SEPARATED BY SPACE.

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