ABAP Select data from SAP table FBEC_40_EB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FBEC_40_EB 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 FBEC_40_EB. 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 FBEC_40_EB 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_FBEC_40_EB TYPE STANDARD TABLE OF FBEC_40_EB,
      WA_FBEC_40_EB TYPE FBEC_40_EB,
      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: <FBEC_40_EB> TYPE FBEC_40_EB.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FBEC_40_EB.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FBEC_40_EB
  INTO TABLE IT_FBEC_40_EB.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FBEC_40_EB
*  INTO TABLE @DATA(IT_FBEC_40_EB2).
*--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_FBEC_40_EB INDEX 1 INTO DATA(WA_FBEC_40_EB2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FBEC_40_EB ASSIGNING <FBEC_40_EB>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FBEC_40_EB>-RECID = 1.
<FBEC_40_EB>-IDTYP = 1.
<FBEC_40_EB>-SEQNR = 1.
<FBEC_40_EB>-SUBNR = 1.
<FBEC_40_EB>-BKRF1 = 1.

ENDLOOP.

LOOP AT IT_FBEC_40_EB INTO WA_FBEC_40_EB.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FBEC_40_EB-BKRF2, sy-vline,
  WA_FBEC_40_EB-CODIF, sy-vline,
  WA_FBEC_40_EB-COMM1, sy-vline,
  WA_FBEC_40_EB-FILL1, sy-vline,
  WA_FBEC_40_EB-RELAT, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_FBEC_40_EB 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_FBEC_40_EB 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_FBEC_40_EB INTO WA_FBEC_40_EB.


*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_FBEC_40_EB_STR, 
RECID TYPE STRING,
IDTYP TYPE STRING,
SEQNR TYPE STRING,
SUBNR TYPE STRING,
BKRF1 TYPE STRING,
BKRF2 TYPE STRING,
CODIF TYPE STRING,
COMM1 TYPE STRING,
FILL1 TYPE STRING,
RELAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FBEC_40_EB_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_FBEC_40_EB_STR-RECID sy-vline 
WA_FBEC_40_EB_STR-IDTYP sy-vline 
WA_FBEC_40_EB_STR-SEQNR sy-vline 
WA_FBEC_40_EB_STR-SUBNR sy-vline 
WA_FBEC_40_EB_STR-BKRF1 sy-vline 
WA_FBEC_40_EB_STR-BKRF2 sy-vline 
WA_FBEC_40_EB_STR-CODIF sy-vline 
WA_FBEC_40_EB_STR-COMM1 sy-vline 
WA_FBEC_40_EB_STR-FILL1 sy-vline 
WA_FBEC_40_EB_STR-RELAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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