ABAP Select data from SAP table BCST_RETE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BCST_RETE
*  INTO TABLE @DATA(IT_BCST_RETE2).
*--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_BCST_RETE INDEX 1 INTO DATA(WA_BCST_RETE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BCST_RETE>-MANDT = 1.
<BCST_RETE>-OS_GUID = 1.
<BCST_RETE>-COMM_TYPE = 1.
<BCST_RETE>-ADDRNUMBER = 1.
<BCST_RETE>-PERSNUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BCST_RETE-CONSNUMBER, sy-vline,
  WA_BCST_RETE-SNDEX, sy-vline,
  WA_BCST_RETE-SNDCP, sy-vline,
  WA_BCST_RETE-SNDBC, sy-vline,
  WA_BCST_RETE-FORFB, sy-vline,
  WA_BCST_RETE-PRIFB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BCST_RETE 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_BCST_RETE 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_BCST_RETE INTO WA_BCST_RETE.


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

*Conversion exit ALPHA, internal->external for field PERSNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BCST_RETE-PERSNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BCST_RETE-PERSNUMBER.
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_BCST_RETE_STR, 
MANDT TYPE STRING,
OS_GUID TYPE STRING,
COMM_TYPE TYPE STRING,
ADDRNUMBER TYPE STRING,
PERSNUMBER TYPE STRING,
CONSNUMBER TYPE STRING,
SNDEX TYPE STRING,
SNDCP TYPE STRING,
SNDBC TYPE STRING,
FORFB TYPE STRING,
PRIFB TYPE STRING,
OBJRR TYPE STRING,
ACALL TYPE STRING,
ACONE TYPE STRING,
RESEND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BCST_RETE_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_BCST_RETE_STR-MANDT sy-vline 
WA_BCST_RETE_STR-OS_GUID sy-vline 
WA_BCST_RETE_STR-COMM_TYPE sy-vline 
WA_BCST_RETE_STR-ADDRNUMBER sy-vline 
WA_BCST_RETE_STR-PERSNUMBER sy-vline 
WA_BCST_RETE_STR-CONSNUMBER sy-vline 
WA_BCST_RETE_STR-SNDEX sy-vline 
WA_BCST_RETE_STR-SNDCP sy-vline 
WA_BCST_RETE_STR-SNDBC sy-vline 
WA_BCST_RETE_STR-FORFB sy-vline 
WA_BCST_RETE_STR-PRIFB sy-vline 
WA_BCST_RETE_STR-OBJRR sy-vline 
WA_BCST_RETE_STR-ACALL sy-vline 
WA_BCST_RETE_STR-ACONE sy-vline 
WA_BCST_RETE_STR-RESEND sy-vline      INTO ld_text SEPARATED BY SPACE.

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