ABAP Select data from SAP table V_TB2BC into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_TB2BC 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_TB2BC. 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_TB2BC 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_TB2BC TYPE STANDARD TABLE OF V_TB2BC,
      WA_V_TB2BC TYPE V_TB2BC,
      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_TB2BC> TYPE V_TB2BC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_TB2BC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_TB2BC
  INTO TABLE IT_V_TB2BC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TB2BC
*  INTO TABLE @DATA(IT_V_TB2BC2).
*--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_TB2BC INDEX 1 INTO DATA(WA_V_TB2BC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_TB2BC ASSIGNING <V_TB2BC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TB2BC>-MANDT = 1.
<V_TB2BC>-TDTPV = 1.
<V_TB2BC>-BSART = 1.
<V_TB2BC>-BEZEI = 1.
<V_TB2BC>-BATXT = 1.

ENDLOOP.

LOOP AT IT_V_TB2BC INTO WA_V_TB2BC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TB2BC-DEFWAERS, sy-vline,
  WA_V_TB2BC-DEFKURST, sy-vline,
  WA_V_TB2BC-LTEXT, sy-vline,
  WA_V_TB2BC-CURVW, sy-vline,
  WA_V_TB2BC-FTACTIVE, sy-vline,
  WA_V_TB2BC-PUINRE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TB2BC 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_TB2BC 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_TB2BC INTO WA_V_TB2BC.


*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 LOP_GROUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TB2BC-LOP_GROUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TB2BC-LOP_GROUP.
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_TB2BC_STR, 
MANDT TYPE STRING,
TDTPV TYPE STRING,
BSART TYPE STRING,
BEZEI TYPE STRING,
BATXT TYPE STRING,
DEFWAERS TYPE STRING,
DEFKURST TYPE STRING,
LTEXT TYPE STRING,
CURVW TYPE STRING,
FTACTIVE TYPE STRING,
PUINRE TYPE STRING,
EKERV TYPE STRING,
EKETX TYPE STRING,
HKLA TYPE STRING,
KALSMK_MM TYPE STRING,
KALSMP_MM TYPE STRING,
BSTYP TYPE STRING,
PRICING_TYPE_PO TYPE STRING,
SYNC_STATUS TYPE STRING,
LOP_GROUP TYPE STRING,
PRICING_COPY_TO_PO TYPE STRING,
SYNC_PARTNER_MM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TB2BC_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_TB2BC_STR-MANDT sy-vline 
WA_V_TB2BC_STR-TDTPV sy-vline 
WA_V_TB2BC_STR-BSART sy-vline 
WA_V_TB2BC_STR-BEZEI sy-vline 
WA_V_TB2BC_STR-BATXT sy-vline 
WA_V_TB2BC_STR-DEFWAERS sy-vline 
WA_V_TB2BC_STR-DEFKURST sy-vline 
WA_V_TB2BC_STR-LTEXT sy-vline 
WA_V_TB2BC_STR-CURVW sy-vline 
WA_V_TB2BC_STR-FTACTIVE sy-vline 
WA_V_TB2BC_STR-PUINRE sy-vline 
WA_V_TB2BC_STR-EKERV sy-vline 
WA_V_TB2BC_STR-EKETX sy-vline 
WA_V_TB2BC_STR-HKLA sy-vline 
WA_V_TB2BC_STR-KALSMK_MM sy-vline 
WA_V_TB2BC_STR-KALSMP_MM sy-vline 
WA_V_TB2BC_STR-BSTYP sy-vline 
WA_V_TB2BC_STR-PRICING_TYPE_PO sy-vline 
WA_V_TB2BC_STR-SYNC_STATUS sy-vline 
WA_V_TB2BC_STR-LOP_GROUP sy-vline 
WA_V_TB2BC_STR-PRICING_COPY_TO_PO sy-vline 
WA_V_TB2BC_STR-SYNC_PARTNER_MM sy-vline      INTO ld_text SEPARATED BY SPACE.

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