ABAP Select data from SAP table FDSB2EXT into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP FDSB2EXT 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 FDSB2EXT. 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 FDSB2EXT 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_FDSB2EXT TYPE STANDARD TABLE OF FDSB2EXT,
      WA_FDSB2EXT TYPE FDSB2EXT,
      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: <FDSB2EXT> TYPE FDSB2EXT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FDSB2EXT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FDSB2EXT
  INTO TABLE IT_FDSB2EXT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FDSB2EXT
*  INTO TABLE @DATA(IT_FDSB2EXT2).
*--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_FDSB2EXT INDEX 1 INTO DATA(WA_FDSB2EXT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FDSB2EXT ASSIGNING <FDSB2EXT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FDSB2EXT>-MANDT = 1.
<FDSB2EXT>-GUID = 1.
<FDSB2EXT>-HERKU = 1.
<FDSB2EXT>-BUKRS = 1.
<FDSB2EXT>-BNKKO = 1.

ENDLOOP.

LOOP AT IT_FDSB2EXT INTO WA_FDSB2EXT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FDSB2EXT-EBENE, sy-vline,
  WA_FDSB2EXT-DATUM, sy-vline,
  WA_FDSB2EXT-AVDAT, sy-vline,
  WA_FDSB2EXT-GSBER, sy-vline,
  WA_FDSB2EXT-SEGMENT, sy-vline,
  WA_FDSB2EXT-PRCTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FDSB2EXT 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_FDSB2EXT 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_FDSB2EXT INTO WA_FDSB2EXT.


*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 HERKU
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FDSB2EXT-HERKU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FDSB2EXT-HERKU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BNKKO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FDSB2EXT-BNKKO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FDSB2EXT-BNKKO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FDSB2EXT-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FDSB2EXT-SEGMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FDSB2EXT-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FDSB2EXT-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FDSB2EXT-GRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FDSB2EXT-GRANT_NBR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WRSHB
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FDSB2EXT-WRSHB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FDSB2EXT-WRSHB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DISKB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FDSB2EXT-DISKB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FDSB2EXT-DISKB.
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_FDSB2EXT_STR, 
MANDT TYPE STRING,
GUID TYPE STRING,
HERKU TYPE STRING,
BUKRS TYPE STRING,
BNKKO TYPE STRING,
EBENE TYPE STRING,
DATUM TYPE STRING,
AVDAT TYPE STRING,
GSBER TYPE STRING,
SEGMENT TYPE STRING,
PRCTR TYPE STRING,
GEBER TYPE STRING,
GRANT_NBR TYPE STRING,
CMVIEW TYPE STRING,
SPLIT TYPE STRING,
DISPW TYPE STRING,
WRSHB TYPE STRING,
DISKB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FDSB2EXT_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_FDSB2EXT_STR-MANDT sy-vline 
WA_FDSB2EXT_STR-GUID sy-vline 
WA_FDSB2EXT_STR-HERKU sy-vline 
WA_FDSB2EXT_STR-BUKRS sy-vline 
WA_FDSB2EXT_STR-BNKKO sy-vline 
WA_FDSB2EXT_STR-EBENE sy-vline 
WA_FDSB2EXT_STR-DATUM sy-vline 
WA_FDSB2EXT_STR-AVDAT sy-vline 
WA_FDSB2EXT_STR-GSBER sy-vline 
WA_FDSB2EXT_STR-SEGMENT sy-vline 
WA_FDSB2EXT_STR-PRCTR sy-vline 
WA_FDSB2EXT_STR-GEBER sy-vline 
WA_FDSB2EXT_STR-GRANT_NBR sy-vline 
WA_FDSB2EXT_STR-CMVIEW sy-vline 
WA_FDSB2EXT_STR-SPLIT sy-vline 
WA_FDSB2EXT_STR-DISPW sy-vline 
WA_FDSB2EXT_STR-WRSHB sy-vline 
WA_FDSB2EXT_STR-DISKB sy-vline      INTO ld_text SEPARATED BY SPACE.

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