ABAP Select data from SAP table T8JVB_SK2I into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T8JVB_SK2I 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 T8JVB_SK2I. 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 T8JVB_SK2I 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_T8JVB_SK2I TYPE STANDARD TABLE OF T8JVB_SK2I,
      WA_T8JVB_SK2I TYPE T8JVB_SK2I,
      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: <T8JVB_SK2I> TYPE T8JVB_SK2I.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T8JVB_SK2I.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T8JVB_SK2I
  INTO TABLE IT_T8JVB_SK2I.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T8JVB_SK2I
*  INTO TABLE @DATA(IT_T8JVB_SK2I2).
*--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_T8JVB_SK2I INDEX 1 INTO DATA(WA_T8JVB_SK2I2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T8JVB_SK2I ASSIGNING <T8JVB_SK2I>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T8JVB_SK2I>-K2ITD01 = 1.
<T8JVB_SK2I>-K2ITD02 = 1.
<T8JVB_SK2I>-K2ITD03 = 1.
<T8JVB_SK2I>-K2ITD04 = 1.
<T8JVB_SK2I>-K2ITD05 = 1.

ENDLOOP.

LOOP AT IT_T8JVB_SK2I INTO WA_T8JVB_SK2I.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T8JVB_SK2I-K2ITD06, sy-vline,
  WA_T8JVB_SK2I-K2ITD07, sy-vline,
  WA_T8JVB_SK2I-K2ITD08, sy-vline,
  WA_T8JVB_SK2I-K2ITD09, sy-vline,
  WA_T8JVB_SK2I-K2ITD10, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_T8JVB_SK2I 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_T8JVB_SK2I 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_T8JVB_SK2I INTO WA_T8JVB_SK2I.


*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_T8JVB_SK2I_STR, 
K2ITD01 TYPE STRING,
K2ITD02 TYPE STRING,
K2ITD03 TYPE STRING,
K2ITD04 TYPE STRING,
K2ITD05 TYPE STRING,
K2ITD06 TYPE STRING,
K2ITD07 TYPE STRING,
K2ITD08 TYPE STRING,
K2ITD09 TYPE STRING,
K2ITD10 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T8JVB_SK2I_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_T8JVB_SK2I_STR-K2ITD01 sy-vline 
WA_T8JVB_SK2I_STR-K2ITD02 sy-vline 
WA_T8JVB_SK2I_STR-K2ITD03 sy-vline 
WA_T8JVB_SK2I_STR-K2ITD04 sy-vline 
WA_T8JVB_SK2I_STR-K2ITD05 sy-vline 
WA_T8JVB_SK2I_STR-K2ITD06 sy-vline 
WA_T8JVB_SK2I_STR-K2ITD07 sy-vline 
WA_T8JVB_SK2I_STR-K2ITD08 sy-vline 
WA_T8JVB_SK2I_STR-K2ITD09 sy-vline 
WA_T8JVB_SK2I_STR-K2ITD10 sy-vline      INTO ld_text SEPARATED BY SPACE.

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