ABAP Select data from SAP table RJV2408 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJV2408 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 RJV2408. 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 RJV2408 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_RJV2408 TYPE STANDARD TABLE OF RJV2408,
      WA_RJV2408 TYPE RJV2408,
      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: <RJV2408> TYPE RJV2408.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RJV2408.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RJV2408
  INTO TABLE IT_RJV2408.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJV2408
*  INTO TABLE @DATA(IT_RJV24082).
*--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_RJV2408 INDEX 1 INTO DATA(WA_RJV24082).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RJV2408 ASSIGNING <RJV2408>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJV2408>-VRSNDVARI = 1.
<RJV2408>-GUELTIGBIS = 1.
<RJV2408>-GUELTIGVON = 1.
<RJV2408>-DRERZ = 1.
<RJV2408>-PVA = 1.

ENDLOOP.

LOOP AT IT_RJV2408 INTO WA_RJV2408.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJV2408-LFART, sy-vline,
  WA_RJV2408-WERK, sy-vline,
  WA_RJV2408-KURZTEXT, sy-vline,
  WA_RJV2408-LANGTEXT, sy-vline,
  WA_RJV2408-ERFUSER, sy-vline,
  WA_RJV2408-ERFDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJV2408 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_RJV2408 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_RJV2408 INTO WA_RJV2408.


*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.

*Conversion exit ALPHA, internal->external for field DRERZ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJV2408-DRERZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJV2408-DRERZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PVA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJV2408-PVA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJV2408-PVA.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RJV2408_STR, 
VRSNDVARI TYPE STRING,
GUELTIGBIS TYPE STRING,
GUELTIGVON TYPE STRING,
DRERZ TYPE STRING,
PVA TYPE STRING,
LFART TYPE STRING,
WERK TYPE STRING,
KURZTEXT TYPE STRING,
LANGTEXT TYPE STRING,
ERFUSER TYPE STRING,
ERFDATE TYPE STRING,
ERFTIME TYPE STRING,
AENUSER TYPE STRING,
AENDATE TYPE STRING,
AENTIME TYPE STRING,
TERFUSER TYPE STRING,
TERFDATE TYPE STRING,
TERFTIME TYPE STRING,
TAENUSER TYPE STRING,
TAENDATE TYPE STRING,
TAENTIME TYPE STRING,
PERFUSER TYPE STRING,
PERFDATE TYPE STRING,
PERFTIME TYPE STRING,
PAENUSER TYPE STRING,
PAENDATE TYPE STRING,
PAENTIME TYPE STRING,
LERFUSER TYPE STRING,
LERFDATE TYPE STRING,
LERFTIME TYPE STRING,
LAENUSER TYPE STRING,
LAENDATE TYPE STRING,
LAENTIME TYPE STRING,
DBCODE TYPE STRING,
FCCODE TYPE STRING,
EINTRAG TYPE STRING,
EINTRAEGE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJV2408_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_RJV2408_STR-VRSNDVARI sy-vline 
WA_RJV2408_STR-GUELTIGBIS sy-vline 
WA_RJV2408_STR-GUELTIGVON sy-vline 
WA_RJV2408_STR-DRERZ sy-vline 
WA_RJV2408_STR-PVA sy-vline 
WA_RJV2408_STR-LFART sy-vline 
WA_RJV2408_STR-WERK sy-vline 
WA_RJV2408_STR-KURZTEXT sy-vline 
WA_RJV2408_STR-LANGTEXT sy-vline 
WA_RJV2408_STR-ERFUSER sy-vline 
WA_RJV2408_STR-ERFDATE sy-vline 
WA_RJV2408_STR-ERFTIME sy-vline 
WA_RJV2408_STR-AENUSER sy-vline 
WA_RJV2408_STR-AENDATE sy-vline 
WA_RJV2408_STR-AENTIME sy-vline 
WA_RJV2408_STR-TERFUSER sy-vline 
WA_RJV2408_STR-TERFDATE sy-vline 
WA_RJV2408_STR-TERFTIME sy-vline 
WA_RJV2408_STR-TAENUSER sy-vline 
WA_RJV2408_STR-TAENDATE sy-vline 
WA_RJV2408_STR-TAENTIME sy-vline 
WA_RJV2408_STR-PERFUSER sy-vline 
WA_RJV2408_STR-PERFDATE sy-vline 
WA_RJV2408_STR-PERFTIME sy-vline 
WA_RJV2408_STR-PAENUSER sy-vline 
WA_RJV2408_STR-PAENDATE sy-vline 
WA_RJV2408_STR-PAENTIME sy-vline 
WA_RJV2408_STR-LERFUSER sy-vline 
WA_RJV2408_STR-LERFDATE sy-vline 
WA_RJV2408_STR-LERFTIME sy-vline 
WA_RJV2408_STR-LAENUSER sy-vline 
WA_RJV2408_STR-LAENDATE sy-vline 
WA_RJV2408_STR-LAENTIME sy-vline 
WA_RJV2408_STR-DBCODE sy-vline 
WA_RJV2408_STR-FCCODE sy-vline 
WA_RJV2408_STR-EINTRAG sy-vline 
WA_RJV2408_STR-EINTRAEGE sy-vline      INTO ld_text SEPARATED BY SPACE.

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