ABAP Select data from SAP table T8JVS02 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T8JVS02 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 T8JVS02. 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 T8JVS02 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_T8JVS02 TYPE STANDARD TABLE OF T8JVS02,
      WA_T8JVS02 TYPE T8JVS02,
      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: <T8JVS02> TYPE T8JVS02.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T8JVS02.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T8JVS02
  INTO TABLE IT_T8JVS02.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T8JVS02
*  INTO TABLE @DATA(IT_T8JVS022).
*--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_T8JVS02 INDEX 1 INTO DATA(WA_T8JVS022).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T8JVS02 ASSIGNING <T8JVS02>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T8JVS02>-BUKRS = 1.
<T8JVS02>-HBKID = 1.
<T8JVS02>-HKTID = 1.
<T8JVS02>-TEXT1 = 1.
<T8JVS02>-BANKS = 1.

ENDLOOP.

LOOP AT IT_T8JVS02 INTO WA_T8JVS02.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T8JVS02-BANKN, sy-vline,
  WA_T8JVS02-BANKL, sy-vline,
  WA_T8JVS02-BANKA, sy-vline,
  WA_T8JVS02-PROVZ, sy-vline,
  WA_T8JVS02-STRAS, sy-vline,
  WA_T8JVS02-ORT01, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T8JVS02 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_T8JVS02 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_T8JVS02 INTO WA_T8JVS02.


*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_T8JVS02_STR, 
BUKRS TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
TEXT1 TYPE STRING,
BANKS TYPE STRING,
BANKN TYPE STRING,
BANKL TYPE STRING,
BANKA TYPE STRING,
PROVZ TYPE STRING,
STRAS TYPE STRING,
ORT01 TYPE STRING,
SWIFT TYPE STRING,
BRNCH TYPE STRING,
EFFDT TYPE STRING,
MENDT TYPE STRING,
WAERS TYPE STRING,
WRBTR TYPE STRING,
DMBTR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T8JVS02_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_T8JVS02_STR-BUKRS sy-vline 
WA_T8JVS02_STR-HBKID sy-vline 
WA_T8JVS02_STR-HKTID sy-vline 
WA_T8JVS02_STR-TEXT1 sy-vline 
WA_T8JVS02_STR-BANKS sy-vline 
WA_T8JVS02_STR-BANKN sy-vline 
WA_T8JVS02_STR-BANKL sy-vline 
WA_T8JVS02_STR-BANKA sy-vline 
WA_T8JVS02_STR-PROVZ sy-vline 
WA_T8JVS02_STR-STRAS sy-vline 
WA_T8JVS02_STR-ORT01 sy-vline 
WA_T8JVS02_STR-SWIFT sy-vline 
WA_T8JVS02_STR-BRNCH sy-vline 
WA_T8JVS02_STR-EFFDT sy-vline 
WA_T8JVS02_STR-MENDT sy-vline 
WA_T8JVS02_STR-WAERS sy-vline 
WA_T8JVS02_STR-WRBTR sy-vline 
WA_T8JVS02_STR-DMBTR sy-vline      INTO ld_text SEPARATED BY SPACE.

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