ABAP Select data from SAP table V_T5DC4 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_T5DC4 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_T5DC4. 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_T5DC4 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_T5DC4 TYPE STANDARD TABLE OF V_T5DC4,
      WA_V_T5DC4 TYPE V_T5DC4,
      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_T5DC4> TYPE V_T5DC4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T5DC4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T5DC4
  INTO TABLE IT_V_T5DC4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T5DC4
*  INTO TABLE @DATA(IT_V_T5DC42).
*--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_T5DC4 INDEX 1 INTO DATA(WA_V_T5DC42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T5DC4 ASSIGNING <V_T5DC4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T5DC4>-MANDT = 1.
<V_T5DC4>-ZWTYP = 1.
<V_T5DC4>-MOZBV = 1.
<V_T5DC4>-MOZAN = 1.
<V_T5DC4>-MOZRA = 1.

ENDLOOP.

LOOP AT IT_V_T5DC4 INTO WA_V_T5DC4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T5DC4-ENDDA, sy-vline,
  WA_V_T5DC4-BEGDA, sy-vline,
  WA_V_T5DC4-EDMTH, sy-vline,
  WA_V_T5DC4-ZWEMW, sy-vline,
  WA_V_T5DC4-ZWEUA, sy-vline,
  WA_V_T5DC4-ZWEVF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T5DC4 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_T5DC4 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_T5DC4 INTO WA_V_T5DC4.


*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_T5DC4_STR, 
MANDT TYPE STRING,
ZWTYP TYPE STRING,
MOZBV TYPE STRING,
MOZAN TYPE STRING,
MOZRA TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
EDMTH TYPE STRING,
ZWEMW TYPE STRING,
ZWEUA TYPE STRING,
ZWEVF TYPE STRING,
ZWEEI TYPE STRING,
ZWJEI TYPE STRING,
ZWMLE TYPE STRING,
ZWEMI TYPE STRING,
ZWEMA TYPE STRING,
ZWREL TYPE STRING,
ZLGAR TYPE STRING,
ZLTRG TYPE STRING,
ZLTZV TYPE STRING,
KZNPA TYPE STRING,
MNTEL TYPE STRING,
RUNDM TYPE STRING,
RUNDN TYPE STRING,
MOZAN_TXT TYPE STRING,
MOZRA_TXT TYPE STRING,
GRUAN TYPE STRING,
GRUAN_TXT TYPE STRING,
ZGASF TYPE STRING,
ZGASP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T5DC4_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_T5DC4_STR-MANDT sy-vline 
WA_V_T5DC4_STR-ZWTYP sy-vline 
WA_V_T5DC4_STR-MOZBV sy-vline 
WA_V_T5DC4_STR-MOZAN sy-vline 
WA_V_T5DC4_STR-MOZRA sy-vline 
WA_V_T5DC4_STR-ENDDA sy-vline 
WA_V_T5DC4_STR-BEGDA sy-vline 
WA_V_T5DC4_STR-EDMTH sy-vline 
WA_V_T5DC4_STR-ZWEMW sy-vline 
WA_V_T5DC4_STR-ZWEUA sy-vline 
WA_V_T5DC4_STR-ZWEVF sy-vline 
WA_V_T5DC4_STR-ZWEEI sy-vline 
WA_V_T5DC4_STR-ZWJEI sy-vline 
WA_V_T5DC4_STR-ZWMLE sy-vline 
WA_V_T5DC4_STR-ZWEMI sy-vline 
WA_V_T5DC4_STR-ZWEMA sy-vline 
WA_V_T5DC4_STR-ZWREL sy-vline 
WA_V_T5DC4_STR-ZLGAR sy-vline 
WA_V_T5DC4_STR-ZLTRG sy-vline 
WA_V_T5DC4_STR-ZLTZV sy-vline 
WA_V_T5DC4_STR-KZNPA sy-vline 
WA_V_T5DC4_STR-MNTEL sy-vline 
WA_V_T5DC4_STR-RUNDM sy-vline 
WA_V_T5DC4_STR-RUNDN sy-vline 
WA_V_T5DC4_STR-MOZAN_TXT sy-vline 
WA_V_T5DC4_STR-MOZRA_TXT sy-vline 
WA_V_T5DC4_STR-GRUAN sy-vline 
WA_V_T5DC4_STR-GRUAN_TXT sy-vline 
WA_V_T5DC4_STR-ZGASF sy-vline 
WA_V_T5DC4_STR-ZGASP sy-vline      INTO ld_text SEPARATED BY SPACE.

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