ABAP Select data from SAP table V_TWBBP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TWBBP
*  INTO TABLE @DATA(IT_V_TWBBP2).
*--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_V_TWBBP INDEX 1 INTO DATA(WA_V_TWBBP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TWBBP>-MANDT = 1.
<V_TWBBP>-BBPRO = 1.
<V_TWBBP>-BBTYP = 1.
<V_TWBBP>-BBMODS = 1.
<V_TWBBP>-BSORT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TWBBP-EKOAR, sy-vline,
  WA_V_TWBBP-BBRED, sy-vline,
  WA_V_TWBBP-BBSTR, sy-vline,
  WA_V_TWBBP-BBROW, sy-vline,
  WA_V_TWBBP-BBVVK, sy-vline,
  WA_V_TWBBP-BSORL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TWBBP 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_V_TWBBP 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_V_TWBBP INTO WA_V_TWBBP.


*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 SPDEV, internal->external for field TDDEST
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_V_TWBBP-TDDEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TWBBP-TDDEST.
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_V_TWBBP_STR, 
MANDT TYPE STRING,
BBPRO TYPE STRING,
BBTYP TYPE STRING,
BBMODS TYPE STRING,
BSORT TYPE STRING,
EKOAR TYPE STRING,
BBRED TYPE STRING,
BBSTR TYPE STRING,
BBROW TYPE STRING,
BBVVK TYPE STRING,
BSORL TYPE STRING,
RECDT TYPE STRING,
TDFORM TYPE STRING,
TDDEST TYPE STRING,
SLPRN TYPE STRING,
VENDORINF TYPE STRING,
EXT_CHANGEINF TYPE STRING,
LAYMODUSE TYPE STRING,
LAYMOD_VER_USE TYPE STRING,
NO_DIRECT_READ TYPE STRING,
DIRECT_READ_MULTI_ACCESS TYPE STRING,
NO_LEAN_SUPPLIER TYPE STRING,
DELETION_SETS TYPE STRING,
NEW_LIST_MOD TYPE STRING,
NOT_SEND_LIST_COND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TWBBP_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_V_TWBBP_STR-MANDT sy-vline 
WA_V_TWBBP_STR-BBPRO sy-vline 
WA_V_TWBBP_STR-BBTYP sy-vline 
WA_V_TWBBP_STR-BBMODS sy-vline 
WA_V_TWBBP_STR-BSORT sy-vline 
WA_V_TWBBP_STR-EKOAR sy-vline 
WA_V_TWBBP_STR-BBRED sy-vline 
WA_V_TWBBP_STR-BBSTR sy-vline 
WA_V_TWBBP_STR-BBROW sy-vline 
WA_V_TWBBP_STR-BBVVK sy-vline 
WA_V_TWBBP_STR-BSORL sy-vline 
WA_V_TWBBP_STR-RECDT sy-vline 
WA_V_TWBBP_STR-TDFORM sy-vline 
WA_V_TWBBP_STR-TDDEST sy-vline 
WA_V_TWBBP_STR-SLPRN sy-vline 
WA_V_TWBBP_STR-VENDORINF sy-vline 
WA_V_TWBBP_STR-EXT_CHANGEINF sy-vline 
WA_V_TWBBP_STR-LAYMODUSE sy-vline 
WA_V_TWBBP_STR-LAYMOD_VER_USE sy-vline 
WA_V_TWBBP_STR-NO_DIRECT_READ sy-vline 
WA_V_TWBBP_STR-DIRECT_READ_MULTI_ACCESS sy-vline 
WA_V_TWBBP_STR-NO_LEAN_SUPPLIER sy-vline 
WA_V_TWBBP_STR-DELETION_SETS sy-vline 
WA_V_TWBBP_STR-NEW_LIST_MOD sy-vline 
WA_V_TWBBP_STR-NOT_SEND_LIST_COND sy-vline      INTO ld_text SEPARATED BY SPACE.

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