ABAP Select data from SAP table V_T604L into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_T604L 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_T604L. 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_T604L 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_T604L TYPE STANDARD TABLE OF V_T604L,
      WA_V_T604L TYPE V_T604L,
      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_T604L> TYPE V_T604L.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T604L.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T604L
  INTO TABLE IT_V_T604L.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T604L
*  INTO TABLE @DATA(IT_V_T604L2).
*--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_T604L INDEX 1 INTO DATA(WA_V_T604L2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T604L ASSIGNING <V_T604L>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T604L>-MANDT = 1.
<V_T604L>-WERKS = 1.
<V_T604L>-MANCO = 1.
<V_T604L>-MHNTG = 1.
<V_T604L>-TXNAM_ANF = 1.

ENDLOOP.

LOOP AT IT_V_T604L INTO WA_V_T604L.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T604L-TXNAM_RHM, sy-vline,
  WA_V_T604L-NAME1, sy-vline,
  WA_V_T604L-NAME2, sy-vline,
  WA_V_T604L-STRAS, sy-vline,
  WA_V_T604L-PFACH, sy-vline,
  WA_V_T604L-PSTLZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T604L 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_T604L 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_T604L INTO WA_V_T604L.


*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_T604L_STR, 
MANDT TYPE STRING,
WERKS TYPE STRING,
MANCO TYPE STRING,
MHNTG TYPE STRING,
TXNAM_ANF TYPE STRING,
TXNAM_RHM TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
STRAS TYPE STRING,
PFACH TYPE STRING,
PSTLZ TYPE STRING,
ORT01 TYPE STRING,
EKORG TYPE STRING,
LAND1 TYPE STRING,
REGIO TYPE STRING,
LET01 TYPE STRING,
LET02 TYPE STRING,
LET03 TYPE STRING,
TXNAM_MA1 TYPE STRING,
TXNAM_MA2 TYPE STRING,
TXNAM_MA3 TYPE STRING,
BETOL TYPE STRING,
EKOTX TYPE STRING,
LANDX TYPE STRING,
BEZEI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T604L_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_T604L_STR-MANDT sy-vline 
WA_V_T604L_STR-WERKS sy-vline 
WA_V_T604L_STR-MANCO sy-vline 
WA_V_T604L_STR-MHNTG sy-vline 
WA_V_T604L_STR-TXNAM_ANF sy-vline 
WA_V_T604L_STR-TXNAM_RHM sy-vline 
WA_V_T604L_STR-NAME1 sy-vline 
WA_V_T604L_STR-NAME2 sy-vline 
WA_V_T604L_STR-STRAS sy-vline 
WA_V_T604L_STR-PFACH sy-vline 
WA_V_T604L_STR-PSTLZ sy-vline 
WA_V_T604L_STR-ORT01 sy-vline 
WA_V_T604L_STR-EKORG sy-vline 
WA_V_T604L_STR-LAND1 sy-vline 
WA_V_T604L_STR-REGIO sy-vline 
WA_V_T604L_STR-LET01 sy-vline 
WA_V_T604L_STR-LET02 sy-vline 
WA_V_T604L_STR-LET03 sy-vline 
WA_V_T604L_STR-TXNAM_MA1 sy-vline 
WA_V_T604L_STR-TXNAM_MA2 sy-vline 
WA_V_T604L_STR-TXNAM_MA3 sy-vline 
WA_V_T604L_STR-BETOL sy-vline 
WA_V_T604L_STR-EKOTX sy-vline 
WA_V_T604L_STR-LANDX sy-vline 
WA_V_T604L_STR-BEZEI sy-vline      INTO ld_text SEPARATED BY SPACE.

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