ABAP Select data from SAP table ARUN_BDRE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ARUN_BDRE
*  INTO TABLE @DATA(IT_ARUN_BDRE2).
*--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_ARUN_BDRE INDEX 1 INTO DATA(WA_ARUN_BDRE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ARUN_BDRE>-MANDT = 1.
<ARUN_BDRE>-BDREG = 1.
<ARUN_BDRE>-EORDR = 1.
<ARUN_BDRE>-EPBDF = 1.
<ARUN_BDRE>-ELBDF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ARUN_BDRE-REBLC, sy-vline,
  WA_ARUN_BDRE-EXMTO, sy-vline,
  WA_ARUN_BDRE-STO, sy-vline,
  WA_ARUN_BDRE-STODATE, sy-vline,
  WA_ARUN_BDRE-RETPO, sy-vline,
  WA_ARUN_BDRE-SUBCPO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ARUN_BDRE 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_ARUN_BDRE 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_ARUN_BDRE INTO WA_ARUN_BDRE.


*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_ARUN_BDRE_STR, 
MANDT TYPE STRING,
BDREG TYPE STRING,
EORDR TYPE STRING,
EPBDF TYPE STRING,
ELBDF TYPE STRING,
REBLC TYPE STRING,
EXMTO TYPE STRING,
STO TYPE STRING,
STODATE TYPE STRING,
RETPO TYPE STRING,
SUBCPO TYPE STRING,
FCNAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ARUN_BDRE_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_ARUN_BDRE_STR-MANDT sy-vline 
WA_ARUN_BDRE_STR-BDREG sy-vline 
WA_ARUN_BDRE_STR-EORDR sy-vline 
WA_ARUN_BDRE_STR-EPBDF sy-vline 
WA_ARUN_BDRE_STR-ELBDF sy-vline 
WA_ARUN_BDRE_STR-REBLC sy-vline 
WA_ARUN_BDRE_STR-EXMTO sy-vline 
WA_ARUN_BDRE_STR-STO sy-vline 
WA_ARUN_BDRE_STR-STODATE sy-vline 
WA_ARUN_BDRE_STR-RETPO sy-vline 
WA_ARUN_BDRE_STR-SUBCPO sy-vline 
WA_ARUN_BDRE_STR-FCNAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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