ABAP Select data from SAP table V_T147 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_T147 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_T147. 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_T147 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_T147 TYPE STANDARD TABLE OF V_T147,
      WA_V_T147 TYPE V_T147,
      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_T147> TYPE V_T147.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T147.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T147
  INTO TABLE IT_V_T147.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T147
*  INTO TABLE @DATA(IT_V_T1472).
*--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_T147 INDEX 1 INTO DATA(WA_V_T1472).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T147 ASSIGNING <V_T147>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T147>-MANDT = 1.
<V_T147>-EKORG = 1.
<V_T147>-EKOTX = 1.
<V_T147>-MAXBW = 1.
<V_T147>-STAGE = 1.

ENDLOOP.

LOOP AT IT_V_T147 INTO WA_V_T147.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T147-BSING, sy-vline,
  WA_V_T147-QAUDI, sy-vline,
  WA_V_T147-GWWEL, sy-vline,
  WA_V_T147-GWFEL, sy-vline,
  WA_V_T147-LFABW, sy-vline,
  WA_V_T147-MGABW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T147 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_T147 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_T147 INTO WA_V_T147.


*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_T147_STR, 
MANDT TYPE STRING,
EKORG TYPE STRING,
EKOTX TYPE STRING,
MAXBW TYPE STRING,
STAGE TYPE STRING,
BSING TYPE STRING,
QAUDI TYPE STRING,
GWWEL TYPE STRING,
GWFEL TYPE STRING,
LFABW TYPE STRING,
MGABW TYPE STRING,
VVABW TYPE STRING,
WEPRZ TYPE STRING,
WEPKZ TYPE STRING,
WELFZ TYPE STRING,
QMUAT TYPE STRING,
FONAM TYPE STRING,
WCIDL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T147_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_T147_STR-MANDT sy-vline 
WA_V_T147_STR-EKORG sy-vline 
WA_V_T147_STR-EKOTX sy-vline 
WA_V_T147_STR-MAXBW sy-vline 
WA_V_T147_STR-STAGE sy-vline 
WA_V_T147_STR-BSING sy-vline 
WA_V_T147_STR-QAUDI sy-vline 
WA_V_T147_STR-GWWEL sy-vline 
WA_V_T147_STR-GWFEL sy-vline 
WA_V_T147_STR-LFABW sy-vline 
WA_V_T147_STR-MGABW sy-vline 
WA_V_T147_STR-VVABW sy-vline 
WA_V_T147_STR-WEPRZ sy-vline 
WA_V_T147_STR-WEPKZ sy-vline 
WA_V_T147_STR-WELFZ sy-vline 
WA_V_T147_STR-QMUAT sy-vline 
WA_V_T147_STR-FONAM sy-vline 
WA_V_T147_STR-WCIDL sy-vline      INTO ld_text SEPARATED BY SPACE.

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