ABAP Select data from SAP table V_T6B4 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_T6B4 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_T6B4. 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_T6B4 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_T6B4 TYPE STANDARD TABLE OF V_T6B4,
      WA_V_T6B4 TYPE V_T6B4,
      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_T6B4> TYPE V_T6B4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T6B4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T6B4
  INTO TABLE IT_V_T6B4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T6B4
*  INTO TABLE @DATA(IT_V_T6B42).
*--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_T6B4 INDEX 1 INTO DATA(WA_V_T6B42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T6B4 ASSIGNING <V_T6B4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T6B4>-MANDT = 1.
<V_T6B4>-KAPPL = 1.
<V_T6B4>-UMTOL = 1.
<V_T6B4>-VTEXT = 1.
<V_T6B4>-CKMAXW = 1.

ENDLOOP.

LOOP AT IT_V_T6B4 INTO WA_V_T6B4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T6B4-CKMINW, sy-vline,
  WA_V_T6B4-CKMAX, sy-vline,
  WA_V_T6B4-CKMIN, sy-vline,
  WA_V_T6B4-PEMAXW, sy-vline,
  WA_V_T6B4-PEMINW, sy-vline,
  WA_V_T6B4-PEMAX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T6B4 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_T6B4 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_T6B4 INTO WA_V_T6B4.


*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_V_T6B4_STR, 
MANDT TYPE STRING,
KAPPL TYPE STRING,
UMTOL TYPE STRING,
VTEXT TYPE STRING,
CKMAXW TYPE STRING,
CKMINW TYPE STRING,
CKMAX TYPE STRING,
CKMIN TYPE STRING,
PEMAXW TYPE STRING,
PEMINW TYPE STRING,
PEMAX TYPE STRING,
PEMIN TYPE STRING,
EDMAXW TYPE STRING,
EDMINW TYPE STRING,
EDMAX TYPE STRING,
EDMIN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T6B4_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_T6B4_STR-MANDT sy-vline 
WA_V_T6B4_STR-KAPPL sy-vline 
WA_V_T6B4_STR-UMTOL sy-vline 
WA_V_T6B4_STR-VTEXT sy-vline 
WA_V_T6B4_STR-CKMAXW sy-vline 
WA_V_T6B4_STR-CKMINW sy-vline 
WA_V_T6B4_STR-CKMAX sy-vline 
WA_V_T6B4_STR-CKMIN sy-vline 
WA_V_T6B4_STR-PEMAXW sy-vline 
WA_V_T6B4_STR-PEMINW sy-vline 
WA_V_T6B4_STR-PEMAX sy-vline 
WA_V_T6B4_STR-PEMIN sy-vline 
WA_V_T6B4_STR-EDMAXW sy-vline 
WA_V_T6B4_STR-EDMINW sy-vline 
WA_V_T6B4_STR-EDMAX sy-vline 
WA_V_T6B4_STR-EDMIN sy-vline      INTO ld_text SEPARATED BY SPACE.

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