ABAP Select data from SAP table JBDVTCP_EXT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JBDVTCP_EXT
*  INTO TABLE @DATA(IT_JBDVTCP_EXT2).
*--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_JBDVTCP_EXT INDEX 1 INTO DATA(WA_JBDVTCP_EXT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JBDVTCP_EXT>-MANDT = 1.
<JBDVTCP_EXT>-VTNUM_INT = 1.
<JBDVTCP_EXT>-DGUEL_KK = 1.
<JBDVTCP_EXT>-DGUEL_KP = 1.
<JBDVTCP_EXT>-SKOART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JBDVTCP_EXT-NSTUFE, sy-vline,
  WA_JBDVTCP_EXT-PKOND, sy-vline,
  WA_JBDVTCP_EXT-BKOND, sy-vline,
  WA_JBDVTCP_EXT-DVALUT, sy-vline,
  WA_JBDVTCP_EXT-DPKOND, sy-vline,
  WA_JBDVTCP_EXT-BZIGRE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JBDVTCP_EXT 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_JBDVTCP_EXT 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_JBDVTCP_EXT INTO WA_JBDVTCP_EXT.


*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_JBDVTCP_EXT_STR, 
MANDT TYPE STRING,
VTNUM_INT TYPE STRING,
DGUEL_KK TYPE STRING,
DGUEL_KP TYPE STRING,
SKOART TYPE STRING,
NSTUFE TYPE STRING,
PKOND TYPE STRING,
BKOND TYPE STRING,
DVALUT TYPE STRING,
DPKOND TYPE STRING,
BZIGRE TYPE STRING,
SZIGRE TYPE STRING,
NOZGEW TYPE STRING,
XOZGEW TYPE STRING,
POZGEW TYPE STRING,
AKTDB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JBDVTCP_EXT_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_JBDVTCP_EXT_STR-MANDT sy-vline 
WA_JBDVTCP_EXT_STR-VTNUM_INT sy-vline 
WA_JBDVTCP_EXT_STR-DGUEL_KK sy-vline 
WA_JBDVTCP_EXT_STR-DGUEL_KP sy-vline 
WA_JBDVTCP_EXT_STR-SKOART sy-vline 
WA_JBDVTCP_EXT_STR-NSTUFE sy-vline 
WA_JBDVTCP_EXT_STR-PKOND sy-vline 
WA_JBDVTCP_EXT_STR-BKOND sy-vline 
WA_JBDVTCP_EXT_STR-DVALUT sy-vline 
WA_JBDVTCP_EXT_STR-DPKOND sy-vline 
WA_JBDVTCP_EXT_STR-BZIGRE sy-vline 
WA_JBDVTCP_EXT_STR-SZIGRE sy-vline 
WA_JBDVTCP_EXT_STR-NOZGEW sy-vline 
WA_JBDVTCP_EXT_STR-XOZGEW sy-vline 
WA_JBDVTCP_EXT_STR-POZGEW sy-vline 
WA_JBDVTCP_EXT_STR-AKTDB sy-vline      INTO ld_text SEPARATED BY SPACE.

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