ABAP Select data from SAP table V_T5N1L into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_T5N1L 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_T5N1L. 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_T5N1L 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_T5N1L TYPE STANDARD TABLE OF V_T5N1L,
      WA_V_T5N1L TYPE V_T5N1L,
      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_T5N1L> TYPE V_T5N1L.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T5N1L.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T5N1L
  INTO TABLE IT_V_T5N1L.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T5N1L
*  INTO TABLE @DATA(IT_V_T5N1L2).
*--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_T5N1L INDEX 1 INTO DATA(WA_V_T5N1L2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T5N1L ASSIGNING <V_T5N1L>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T5N1L>-MANDT = 1.
<V_T5N1L>-JUPER = 1.
<V_T5N1L>-SVGRP = 1.
<V_T5N1L>-SVTAK = 1.
<V_T5N1L>-SVVNR = 1.

ENDLOOP.

LOOP AT IT_V_T5N1L INTO WA_V_T5N1L.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T5N1L-ENDDA, sy-vline,
  WA_V_T5N1L-BEGDA, sy-vline,
  WA_V_T5N1L-SVSRT, sy-vline,
  WA_V_T5N1L-MAXGR, sy-vline,
  WA_V_T5N1L-FRNCH, sy-vline,
  WA_V_T5N1L-WGSVP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T5N1L 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_T5N1L 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_T5N1L INTO WA_V_T5N1L.


*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_T5N1L_STR, 
MANDT TYPE STRING,
JUPER TYPE STRING,
SVGRP TYPE STRING,
SVTAK TYPE STRING,
SVVNR TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
SVSRT TYPE STRING,
MAXGR TYPE STRING,
FRNCH TYPE STRING,
WGSVP TYPE STRING,
WNSVP TYPE STRING,
SVDAY TYPE STRING,
SVMET TYPE STRING,
GRSLG TYPE STRING,
AARDP TYPE STRING,
OMS_SVTAK TYPE STRING,
OMS_SVGRP TYPE STRING,
OMS_SVSRT TYPE STRING,
OMS_SVMET TYPE STRING,
WNNEG TYPE STRING,
APSCR TYPE STRING,
WGSV1 TYPE STRING,
WGSV2 TYPE STRING,
WGSV3 TYPE STRING,
WNSV1 TYPE STRING,
WNSV2 TYPE STRING,
WGSV4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T5N1L_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_T5N1L_STR-MANDT sy-vline 
WA_V_T5N1L_STR-JUPER sy-vline 
WA_V_T5N1L_STR-SVGRP sy-vline 
WA_V_T5N1L_STR-SVTAK sy-vline 
WA_V_T5N1L_STR-SVVNR sy-vline 
WA_V_T5N1L_STR-ENDDA sy-vline 
WA_V_T5N1L_STR-BEGDA sy-vline 
WA_V_T5N1L_STR-SVSRT sy-vline 
WA_V_T5N1L_STR-MAXGR sy-vline 
WA_V_T5N1L_STR-FRNCH sy-vline 
WA_V_T5N1L_STR-WGSVP sy-vline 
WA_V_T5N1L_STR-WNSVP sy-vline 
WA_V_T5N1L_STR-SVDAY sy-vline 
WA_V_T5N1L_STR-SVMET sy-vline 
WA_V_T5N1L_STR-GRSLG sy-vline 
WA_V_T5N1L_STR-AARDP sy-vline 
WA_V_T5N1L_STR-OMS_SVTAK sy-vline 
WA_V_T5N1L_STR-OMS_SVGRP sy-vline 
WA_V_T5N1L_STR-OMS_SVSRT sy-vline 
WA_V_T5N1L_STR-OMS_SVMET sy-vline 
WA_V_T5N1L_STR-WNNEG sy-vline 
WA_V_T5N1L_STR-APSCR sy-vline 
WA_V_T5N1L_STR-WGSV1 sy-vline 
WA_V_T5N1L_STR-WGSV2 sy-vline 
WA_V_T5N1L_STR-WGSV3 sy-vline 
WA_V_T5N1L_STR-WNSV1 sy-vline 
WA_V_T5N1L_STR-WNSV2 sy-vline 
WA_V_T5N1L_STR-WGSV4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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