ABAP Select data from SAP table JBDBEWE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JBDBEWE
*  INTO TABLE @DATA(IT_JBDBEWE2).
*--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_JBDBEWE INDEX 1 INTO DATA(WA_JBDBEWE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JBDBEWE>-MANDT = 1.
<JBDBEWE>-RBAENINT = 1.
<JBDBEWE>-RLFNR = 1.
<JBDBEWE>-OBJNRB = 1.
<JBDBEWE>-DBESTAND = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JBDBEWE-DVALUT, sy-vline,
  WA_JBDBEWE-DDISPO, sy-vline,
  WA_JBDBEWE-ASTUECK, sy-vline,
  WA_JBDBEWE-BNWHR, sy-vline,
  WA_JBDBEWE-KWKURS, sy-vline,
  WA_JBDBEWE-SSWHR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JBDBEWE 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_JBDBEWE 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_JBDBEWE INTO WA_JBDBEWE.


*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_JBDBEWE_STR, 
MANDT TYPE STRING,
RBAENINT TYPE STRING,
RLFNR TYPE STRING,
OBJNRB TYPE STRING,
DBESTAND TYPE STRING,
DVALUT TYPE STRING,
DDISPO TYPE STRING,
ASTUECK TYPE STRING,
BNWHR TYPE STRING,
KWKURS TYPE STRING,
SSWHR TYPE STRING,
BBWHR TYPE STRING,
BHWHR TYPE STRING,
BBWHRB TYPE STRING,
BHWHRB TYPE STRING,
SBEWART TYPE STRING,
SBEWZITI TYPE STRING,
SZUABKNZ TYPE STRING,
SPRKNZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JBDBEWE_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_JBDBEWE_STR-MANDT sy-vline 
WA_JBDBEWE_STR-RBAENINT sy-vline 
WA_JBDBEWE_STR-RLFNR sy-vline 
WA_JBDBEWE_STR-OBJNRB sy-vline 
WA_JBDBEWE_STR-DBESTAND sy-vline 
WA_JBDBEWE_STR-DVALUT sy-vline 
WA_JBDBEWE_STR-DDISPO sy-vline 
WA_JBDBEWE_STR-ASTUECK sy-vline 
WA_JBDBEWE_STR-BNWHR sy-vline 
WA_JBDBEWE_STR-KWKURS sy-vline 
WA_JBDBEWE_STR-SSWHR sy-vline 
WA_JBDBEWE_STR-BBWHR sy-vline 
WA_JBDBEWE_STR-BHWHR sy-vline 
WA_JBDBEWE_STR-BBWHRB sy-vline 
WA_JBDBEWE_STR-BHWHRB sy-vline 
WA_JBDBEWE_STR-SBEWART sy-vline 
WA_JBDBEWE_STR-SBEWZITI sy-vline 
WA_JBDBEWE_STR-SZUABKNZ sy-vline 
WA_JBDBEWE_STR-SPRKNZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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