ABAP Select data from SAP table JBDWFW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JBDWFW
*  INTO TABLE @DATA(IT_JBDWFW2).
*--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_JBDWFW INDEX 1 INTO DATA(WA_JBDWFW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JBDWFW>-BSTUKO = 1.
<JBDWFW>-BGEMKO = 1.
<JBDWFW>-BOHZUS = 1.
<JBDWFW>-BGBZIN = 1.
<JBDWFW>-BISTKO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JBDWFW-BEWBER, sy-vline,
  WA_JBDWFW-BWBAER, sy-vline,
  WA_JBDWFW-BABFER, sy-vline,
  WA_JBDWFW-BDIRAB, sy-vline,
  WA_JBDWFW-BRISKO, sy-vline,
  WA_JBDWFW-BBARWT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JBDWFW 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_JBDWFW 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_JBDWFW INTO WA_JBDWFW.


*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_JBDWFW_STR, 
BSTUKO TYPE STRING,
BGEMKO TYPE STRING,
BOHZUS TYPE STRING,
BGBZIN TYPE STRING,
BISTKO TYPE STRING,
BEWBER TYPE STRING,
BWBAER TYPE STRING,
BABFER TYPE STRING,
BDIRAB TYPE STRING,
BRISKO TYPE STRING,
BBARWT TYPE STRING,
BRISBW TYPE STRING,
BEKAKO TYPE STRING,
BEKKBW TYPE STRING,
BELSKO TYPE STRING,
BFLOAT TYPE STRING,
BGSKOS TYPE STRING,
BGVZAB TYPE STRING,
BGVZAK TYPE STRING,
BSTKBW TYPE STRING,
BDSMRV TYPE STRING,
BMKVAN TYPE STRING,
BKOVOL TYPE STRING,
BKOVLD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JBDWFW_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_JBDWFW_STR-BSTUKO sy-vline 
WA_JBDWFW_STR-BGEMKO sy-vline 
WA_JBDWFW_STR-BOHZUS sy-vline 
WA_JBDWFW_STR-BGBZIN sy-vline 
WA_JBDWFW_STR-BISTKO sy-vline 
WA_JBDWFW_STR-BEWBER sy-vline 
WA_JBDWFW_STR-BWBAER sy-vline 
WA_JBDWFW_STR-BABFER sy-vline 
WA_JBDWFW_STR-BDIRAB sy-vline 
WA_JBDWFW_STR-BRISKO sy-vline 
WA_JBDWFW_STR-BBARWT sy-vline 
WA_JBDWFW_STR-BRISBW sy-vline 
WA_JBDWFW_STR-BEKAKO sy-vline 
WA_JBDWFW_STR-BEKKBW sy-vline 
WA_JBDWFW_STR-BELSKO sy-vline 
WA_JBDWFW_STR-BFLOAT sy-vline 
WA_JBDWFW_STR-BGSKOS sy-vline 
WA_JBDWFW_STR-BGVZAB sy-vline 
WA_JBDWFW_STR-BGVZAK sy-vline 
WA_JBDWFW_STR-BSTKBW sy-vline 
WA_JBDWFW_STR-BDSMRV sy-vline 
WA_JBDWFW_STR-BMKVAN sy-vline 
WA_JBDWFW_STR-BKOVOL sy-vline 
WA_JBDWFW_STR-BKOVLD sy-vline      INTO ld_text SEPARATED BY SPACE.

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