ABAP Select data from SAP table VJDTBZUS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VJDTBZUS
*  INTO TABLE @DATA(IT_VJDTBZUS2).
*--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_VJDTBZUS INDEX 1 INTO DATA(WA_VJDTBZUS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VJDTBZUS>-MANDT = 1.
<VJDTBZUS>-DRERTR = 1.
<VJDTBZUS>-PVATRA = 1.
<VJDTBZUS>-BEZTYP = 1.
<VJDTBZUS>-MBZART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VJDTBZUS-VAVTPL, sy-vline,
  WA_VJDTBZUS-VAVTTA, sy-vline,
  WA_VJDTBZUS-DRERMT, sy-vline,
  WA_VJDTBZUS-PVAMIT, sy-vline,
  WA_VJDTBZUS-GUEVON, sy-vline,
  WA_VJDTBZUS-GUEBIS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VJDTBZUS 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_VJDTBZUS 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_VJDTBZUS INTO WA_VJDTBZUS.


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

*Conversion exit ALPHA, internal->external for field PVATRA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VJDTBZUS-PVATRA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VJDTBZUS-PVATRA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DRERMT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VJDTBZUS-DRERMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VJDTBZUS-DRERMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PVAMIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VJDTBZUS-PVAMIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VJDTBZUS-PVAMIT.
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_VJDTBZUS_STR, 
MANDT TYPE STRING,
DRERTR TYPE STRING,
PVATRA TYPE STRING,
BEZTYP TYPE STRING,
MBZART TYPE STRING,
VAVTPL TYPE STRING,
VAVTTA TYPE STRING,
DRERMT TYPE STRING,
PVAMIT TYPE STRING,
GUEVON TYPE STRING,
GUEBIS TYPE STRING,
XPROSP TYPE STRING,
XFRBPO TYPE STRING,
LFARTA TYPE STRING,
BEZTMT TYPE STRING,
XCHECKBEZP TYPE STRING,
XMBFAKTURA TYPE STRING,
XMBCORR TYPE STRING,
XMBTMC TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VJDTBZUS_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_VJDTBZUS_STR-MANDT sy-vline 
WA_VJDTBZUS_STR-DRERTR sy-vline 
WA_VJDTBZUS_STR-PVATRA sy-vline 
WA_VJDTBZUS_STR-BEZTYP sy-vline 
WA_VJDTBZUS_STR-MBZART sy-vline 
WA_VJDTBZUS_STR-VAVTPL sy-vline 
WA_VJDTBZUS_STR-VAVTTA sy-vline 
WA_VJDTBZUS_STR-DRERMT sy-vline 
WA_VJDTBZUS_STR-PVAMIT sy-vline 
WA_VJDTBZUS_STR-GUEVON sy-vline 
WA_VJDTBZUS_STR-GUEBIS sy-vline 
WA_VJDTBZUS_STR-XPROSP sy-vline 
WA_VJDTBZUS_STR-XFRBPO sy-vline 
WA_VJDTBZUS_STR-LFARTA sy-vline 
WA_VJDTBZUS_STR-BEZTMT sy-vline 
WA_VJDTBZUS_STR-XCHECKBEZP sy-vline 
WA_VJDTBZUS_STR-XMBFAKTURA sy-vline 
WA_VJDTBZUS_STR-XMBCORR sy-vline 
WA_VJDTBZUS_STR-XMBTMC sy-vline 
WA_VJDTBZUS_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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