ABAP Select data from SAP table FCABK into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FCABK 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 FCABK. 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 FCABK 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_FCABK TYPE STANDARD TABLE OF FCABK,
      WA_FCABK TYPE FCABK,
      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: <FCABK> TYPE FCABK.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FCABK
*  INTO TABLE @DATA(IT_FCABK2).
*--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_FCABK INDEX 1 INTO DATA(WA_FCABK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FCABK>-MANDT = 1.
<FCABK>-LEDNR = 1.
<FCABK>-FIKRS = 1.
<FCABK>-BELNR = 1.
<FCABK>-SUMBZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FCABK-DELBZ, sy-vline,
  WA_FCABK-WRTTP, sy-vline,
  WA_FCABK-AWTYP, sy-vline,
  WA_FCABK-AWREF, sy-vline,
  WA_FCABK-AWORG, sy-vline,
  WA_FCABK-AWSYS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FCABK 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_FCABK 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_FCABK INTO WA_FCABK.


*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 NUMCV, internal->external for field LEDNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_FCABK-LEDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCABK-LEDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FCABK-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCABK-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WRTTP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FCABK-WRTTP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCABK-WRTTP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AWREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FCABK-AWREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCABK-AWREF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AWSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FCABK-AWSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCABK-AWSYS.
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_FCABK_STR, 
MANDT TYPE STRING,
LEDNR TYPE STRING,
FIKRS TYPE STRING,
BELNR TYPE STRING,
SUMBZ TYPE STRING,
DELBZ TYPE STRING,
WRTTP TYPE STRING,
AWTYP TYPE STRING,
AWREF TYPE STRING,
AWORG TYPE STRING,
AWSYS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FCABK_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_FCABK_STR-MANDT sy-vline 
WA_FCABK_STR-LEDNR sy-vline 
WA_FCABK_STR-FIKRS sy-vline 
WA_FCABK_STR-BELNR sy-vline 
WA_FCABK_STR-SUMBZ sy-vline 
WA_FCABK_STR-DELBZ sy-vline 
WA_FCABK_STR-WRTTP sy-vline 
WA_FCABK_STR-AWTYP sy-vline 
WA_FCABK_STR-AWREF sy-vline 
WA_FCABK_STR-AWORG sy-vline 
WA_FCABK_STR-AWSYS sy-vline      INTO ld_text SEPARATED BY SPACE.

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