ABAP Select data from SAP table BWSD_DATA 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 BWSD_DATA 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 BWSD_DATA. 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 BWSD_DATA 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_BWSD_DATA TYPE STANDARD TABLE OF BWSD_DATA,
      WA_BWSD_DATA TYPE BWSD_DATA,
      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: <BWSD_DATA> TYPE BWSD_DATA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BWSD_DATA
*  INTO TABLE @DATA(IT_BWSD_DATA2).
*--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_BWSD_DATA INDEX 1 INTO DATA(WA_BWSD_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BWSD_DATA>-DCLASS = 1.
<BWSD_DATA>-ITEMTP = 1.
<BWSD_DATA>-VARIANT = 1.
<BWSD_DATA>-OBJTP = 1.
<BWSD_DATA>-OBJNM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BWSD_DATA-OBJID, sy-vline,
  WA_BWSD_DATA-OBJREFNM, sy-vline,
  WA_BWSD_DATA-BLOCKNO, sy-vline,
  WA_BWSD_DATA-INFO, sy-vline,
  WA_BWSD_DATA-VALUE, sy-vline,
  WA_BWSD_DATA-AUTHOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BWSD_DATA 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_BWSD_DATA 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_BWSD_DATA INTO WA_BWSD_DATA.


*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_BWSD_DATA_STR, 
DCLASS TYPE STRING,
ITEMTP TYPE STRING,
VARIANT TYPE STRING,
OBJTP TYPE STRING,
OBJNM TYPE STRING,
OBJID TYPE STRING,
OBJREFNM TYPE STRING,
BLOCKNO TYPE STRING,
INFO TYPE STRING,
VALUE TYPE STRING,
AUTHOR TYPE STRING,
LASTUSER TYPE STRING,
DEFTIME TYPE STRING,
MODTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BWSD_DATA_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_BWSD_DATA_STR-DCLASS sy-vline 
WA_BWSD_DATA_STR-ITEMTP sy-vline 
WA_BWSD_DATA_STR-VARIANT sy-vline 
WA_BWSD_DATA_STR-OBJTP sy-vline 
WA_BWSD_DATA_STR-OBJNM sy-vline 
WA_BWSD_DATA_STR-OBJID sy-vline 
WA_BWSD_DATA_STR-OBJREFNM sy-vline 
WA_BWSD_DATA_STR-BLOCKNO sy-vline 
WA_BWSD_DATA_STR-INFO sy-vline 
WA_BWSD_DATA_STR-VALUE sy-vline 
WA_BWSD_DATA_STR-AUTHOR sy-vline 
WA_BWSD_DATA_STR-LASTUSER sy-vline 
WA_BWSD_DATA_STR-DEFTIME sy-vline 
WA_BWSD_DATA_STR-MODTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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