ABAP Select data from SAP table V_T5JCN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_T5JCN 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_T5JCN. 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_T5JCN 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_T5JCN TYPE STANDARD TABLE OF V_T5JCN,
      WA_V_T5JCN TYPE V_T5JCN,
      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_T5JCN> TYPE V_T5JCN.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T5JCN.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T5JCN
  INTO TABLE IT_V_T5JCN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T5JCN
*  INTO TABLE @DATA(IT_V_T5JCN2).
*--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_T5JCN INDEX 1 INTO DATA(WA_V_T5JCN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T5JCN ASSIGNING <V_T5JCN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T5JCN>-MANDT = 1.
<V_T5JCN>-CPNMF = 1.
<V_T5JCN>-ENDDA = 1.
<V_T5JCN>-BEGDA = 1.
<V_T5JCN>-CORPN = 1.

ENDLOOP.

LOOP AT IT_V_T5JCN INTO WA_V_T5JCN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T5JCN-CPNM1, sy-vline,
  WA_V_T5JCN-CPNM2, sy-vline,
  WA_V_T5JCN-STATE, sy-vline,
  WA_V_T5JCN-COUNC, sy-vline,
  WA_V_T5JCN-PSTLZ, sy-vline,
  WA_V_T5JCN-CADR1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T5JCN 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_T5JCN 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_T5JCN INTO WA_V_T5JCN.


*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_T5JCN_STR, 
MANDT TYPE STRING,
CPNMF TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
CORPN TYPE STRING,
CPNM1 TYPE STRING,
CPNM2 TYPE STRING,
STATE TYPE STRING,
COUNC TYPE STRING,
PSTLZ TYPE STRING,
CADR1 TYPE STRING,
CADR2 TYPE STRING,
TXTCO TYPE STRING,
TXTRG TYPE STRING,
PNAME TYPE STRING,
PADDF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T5JCN_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_T5JCN_STR-MANDT sy-vline 
WA_V_T5JCN_STR-CPNMF sy-vline 
WA_V_T5JCN_STR-ENDDA sy-vline 
WA_V_T5JCN_STR-BEGDA sy-vline 
WA_V_T5JCN_STR-CORPN sy-vline 
WA_V_T5JCN_STR-CPNM1 sy-vline 
WA_V_T5JCN_STR-CPNM2 sy-vline 
WA_V_T5JCN_STR-STATE sy-vline 
WA_V_T5JCN_STR-COUNC sy-vline 
WA_V_T5JCN_STR-PSTLZ sy-vline 
WA_V_T5JCN_STR-CADR1 sy-vline 
WA_V_T5JCN_STR-CADR2 sy-vline 
WA_V_T5JCN_STR-TXTCO sy-vline 
WA_V_T5JCN_STR-TXTRG sy-vline 
WA_V_T5JCN_STR-PNAME sy-vline 
WA_V_T5JCN_STR-PADDF sy-vline      INTO ld_text SEPARATED BY SPACE.

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