ABAP Select data from SAP table BICCF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BICCF
*  INTO TABLE @DATA(IT_BICCF2).
*--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_BICCF INDEX 1 INTO DATA(WA_BICCF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BICCF>-BICDF_FIRST_CALL = 1.
<BICCF>-DOCK_LEFT_OPEN = 1.
<BICCF>-DOCK_LEFT_SIZE = 1.
<BICCF>-NO_MIN_BUTTON = 1.
<BICCF>-NO_MAX_BUTTON = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BICCF-DOCK_L_MINIMIZED, sy-vline,
  WA_BICCF-DOCK_L_MAXIMIZED, sy-vline,
  WA_BICCF-MAST_TREE_OPEN, sy-vline,
  WA_BICCF-MAST_TREE_HEADER_WIDTH, sy-vline,
  WA_BICCF-MAST_GRID_OPEN, sy-vline,
  WA_BICCF-STCK_TREE_OPEN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BICCF 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_BICCF 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_BICCF INTO WA_BICCF.


*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_BICCF_STR, 
BICDF_FIRST_CALL TYPE STRING,
DOCK_LEFT_OPEN TYPE STRING,
DOCK_LEFT_SIZE TYPE STRING,
NO_MIN_BUTTON TYPE STRING,
NO_MAX_BUTTON TYPE STRING,
DOCK_L_MINIMIZED TYPE STRING,
DOCK_L_MAXIMIZED TYPE STRING,
MAST_TREE_OPEN TYPE STRING,
MAST_TREE_HEADER_WIDTH TYPE STRING,
MAST_GRID_OPEN TYPE STRING,
STCK_TREE_OPEN TYPE STRING,
STCK_TREE_HEADER_WIDTH TYPE STRING,
STCK_GRID_OPEN TYPE STRING,
DRVS_TREE_OPEN TYPE STRING,
WORKLIST_OPEN TYPE STRING,
RECREATE_WORKLIST TYPE STRING,
SPLIT_OPEN TYPE STRING,
SPLIT_TOP_OPEN TYPE STRING,
SPLIT_BOT_OPEN TYPE STRING,
SPLIT_ADJUST TYPE STRING,
TB_MASTER_OPEN TYPE STRING,
WUL_CONTAINER_OPEN TYPE STRING,
TB_DETAIL_OPEN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BICCF_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_BICCF_STR-BICDF_FIRST_CALL sy-vline 
WA_BICCF_STR-DOCK_LEFT_OPEN sy-vline 
WA_BICCF_STR-DOCK_LEFT_SIZE sy-vline 
WA_BICCF_STR-NO_MIN_BUTTON sy-vline 
WA_BICCF_STR-NO_MAX_BUTTON sy-vline 
WA_BICCF_STR-DOCK_L_MINIMIZED sy-vline 
WA_BICCF_STR-DOCK_L_MAXIMIZED sy-vline 
WA_BICCF_STR-MAST_TREE_OPEN sy-vline 
WA_BICCF_STR-MAST_TREE_HEADER_WIDTH sy-vline 
WA_BICCF_STR-MAST_GRID_OPEN sy-vline 
WA_BICCF_STR-STCK_TREE_OPEN sy-vline 
WA_BICCF_STR-STCK_TREE_HEADER_WIDTH sy-vline 
WA_BICCF_STR-STCK_GRID_OPEN sy-vline 
WA_BICCF_STR-DRVS_TREE_OPEN sy-vline 
WA_BICCF_STR-WORKLIST_OPEN sy-vline 
WA_BICCF_STR-RECREATE_WORKLIST sy-vline 
WA_BICCF_STR-SPLIT_OPEN sy-vline 
WA_BICCF_STR-SPLIT_TOP_OPEN sy-vline 
WA_BICCF_STR-SPLIT_BOT_OPEN sy-vline 
WA_BICCF_STR-SPLIT_ADJUST sy-vline 
WA_BICCF_STR-TB_MASTER_OPEN sy-vline 
WA_BICCF_STR-WUL_CONTAINER_OPEN sy-vline 
WA_BICCF_STR-TB_DETAIL_OPEN sy-vline      INTO ld_text SEPARATED BY SPACE.

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