ABAP Select data from SAP table TJV63 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TJV63 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 TJV63. 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 TJV63 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_TJV63 TYPE STANDARD TABLE OF TJV63,
      WA_TJV63 TYPE TJV63,
      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: <TJV63> TYPE TJV63.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TJV63.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TJV63
  INTO TABLE IT_TJV63.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TJV63
*  INTO TABLE @DATA(IT_TJV632).
*--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_TJV63 INDEX 1 INTO DATA(WA_TJV632).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TJV63 ASSIGNING <TJV63>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TJV63>-MANDT = 1.
<TJV63>-DRKEI = 1.
<TJV63>-POVERKZ = 1.
<TJV63>-ORIGINATOR = 1.
<TJV63>-PRODUCER = 1.

ENDLOOP.

LOOP AT IT_TJV63 INTO WA_TJV63.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TJV63-SUBMITTER, sy-vline,
  WA_TJV63-PAYER, sy-vline,
  WA_TJV63-HOLDER, sy-vline,
  WA_TJV63-TRANSKZ, sy-vline,
  WA_TJV63-EINLART, sy-vline,
  WA_TJV63-PROD_PLANT_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TJV63 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_TJV63 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_TJV63 INTO WA_TJV63.


*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_TJV63_STR, 
MANDT TYPE STRING,
DRKEI TYPE STRING,
POVERKZ TYPE STRING,
ORIGINATOR TYPE STRING,
PRODUCER TYPE STRING,
SUBMITTER TYPE STRING,
PAYER TYPE STRING,
HOLDER TYPE STRING,
TRANSKZ TYPE STRING,
EINLART TYPE STRING,
PROD_PLANT_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TJV63_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_TJV63_STR-MANDT sy-vline 
WA_TJV63_STR-DRKEI sy-vline 
WA_TJV63_STR-POVERKZ sy-vline 
WA_TJV63_STR-ORIGINATOR sy-vline 
WA_TJV63_STR-PRODUCER sy-vline 
WA_TJV63_STR-SUBMITTER sy-vline 
WA_TJV63_STR-PAYER sy-vline 
WA_TJV63_STR-HOLDER sy-vline 
WA_TJV63_STR-TRANSKZ sy-vline 
WA_TJV63_STR-EINLART sy-vline 
WA_TJV63_STR-PROD_PLANT_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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