ABAP Select data from SAP table FEBC_21_EB2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FEBC_21_EB2 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 FEBC_21_EB2. 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 FEBC_21_EB2 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_FEBC_21_EB2 TYPE STANDARD TABLE OF FEBC_21_EB2,
      WA_FEBC_21_EB2 TYPE FEBC_21_EB2,
      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: <FEBC_21_EB2> TYPE FEBC_21_EB2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FEBC_21_EB2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FEBC_21_EB2
  INTO TABLE IT_FEBC_21_EB2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FEBC_21_EB2
*  INTO TABLE @DATA(IT_FEBC_21_EB22).
*--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_FEBC_21_EB2 INDEX 1 INTO DATA(WA_FEBC_21_EB22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FEBC_21_EB2 ASSIGNING <FEBC_21_EB2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FEBC_21_EB2>-RECID = 1.
<FEBC_21_EB2>-IDTYP = 1.
<FEBC_21_EB2>-SEQNR = 1.
<FEBC_21_EB2>-SUBNR = 1.
<FEBC_21_EB2>-BKRF1 = 1.

ENDLOOP.

LOOP AT IT_FEBC_21_EB2 INTO WA_FEBC_21_EB2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FEBC_21_EB2-SIGNA, sy-vline,
  WA_FEBC_21_EB2-AMOUN, sy-vline,
  WA_FEBC_21_EB2-VALDT, sy-vline,
  WA_FEBC_21_EB2-OPTE, sy-vline,
  WA_FEBC_21_EB2-COMIF, sy-vline,
  WA_FEBC_21_EB2-COMM1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FEBC_21_EB2 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_FEBC_21_EB2 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_FEBC_21_EB2 INTO WA_FEBC_21_EB2.


*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_FEBC_21_EB2_STR, 
RECID TYPE STRING,
IDTYP TYPE STRING,
SEQNR TYPE STRING,
SUBNR TYPE STRING,
BKRF1 TYPE STRING,
SIGNA TYPE STRING,
AMOUN TYPE STRING,
VALDT TYPE STRING,
OPTE TYPE STRING,
COMIF TYPE STRING,
COMM1 TYPE STRING,
BUDAT TYPE STRING,
EXTNR TYPE STRING,
GLOBL TYPE STRING,
FOLLW TYPE STRING,
FILL1 TYPE STRING,
RELAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FEBC_21_EB2_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_FEBC_21_EB2_STR-RECID sy-vline 
WA_FEBC_21_EB2_STR-IDTYP sy-vline 
WA_FEBC_21_EB2_STR-SEQNR sy-vline 
WA_FEBC_21_EB2_STR-SUBNR sy-vline 
WA_FEBC_21_EB2_STR-BKRF1 sy-vline 
WA_FEBC_21_EB2_STR-SIGNA sy-vline 
WA_FEBC_21_EB2_STR-AMOUN sy-vline 
WA_FEBC_21_EB2_STR-VALDT sy-vline 
WA_FEBC_21_EB2_STR-OPTE sy-vline 
WA_FEBC_21_EB2_STR-COMIF sy-vline 
WA_FEBC_21_EB2_STR-COMM1 sy-vline 
WA_FEBC_21_EB2_STR-BUDAT sy-vline 
WA_FEBC_21_EB2_STR-EXTNR sy-vline 
WA_FEBC_21_EB2_STR-GLOBL sy-vline 
WA_FEBC_21_EB2_STR-FOLLW sy-vline 
WA_FEBC_21_EB2_STR-FILL1 sy-vline 
WA_FEBC_21_EB2_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.