ABAP Select data from SAP table RJV4101 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJV4101 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 RJV4101. 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 RJV4101 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_RJV4101 TYPE STANDARD TABLE OF RJV4101,
      WA_RJV4101 TYPE RJV4101,
      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: <RJV4101> TYPE RJV4101.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RJV4101.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RJV4101
  INTO TABLE IT_RJV4101.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJV4101
*  INTO TABLE @DATA(IT_RJV41012).
*--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_RJV4101 INDEX 1 INTO DATA(WA_RJV41012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RJV4101 ASSIGNING <RJV4101>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJV4101>-FVNR = 1.
<RJV4101>-FVART = 1.
<RJV4101>-FVGRUND = 1.
<RJV4101>-VKORG = 1.
<RJV4101>-VTWEG = 1.

ENDLOOP.

LOOP AT IT_RJV4101 INTO WA_RJV4101.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJV4101-LFARTLOG, sy-vline,
  WA_RJV4101-DRUCKEREI, sy-vline,
  WA_RJV4101-VKBURZUS, sy-vline,
  WA_RJV4101-FVVERURS, sy-vline,
  WA_RJV4101-ZUSTELLER, sy-vline,
  WA_RJV4101-VSGZUSTLR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJV4101 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_RJV4101 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_RJV4101 INTO WA_RJV4101.


*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 ZUSTELLER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJV4101-ZUSTELLER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJV4101-ZUSTELLER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VSGZUSTLR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJV4101-VSGZUSTLR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJV4101-VSGZUSTLR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DRERZ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJV4101-DRERZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJV4101-DRERZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PVA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJV4101-PVA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJV4101-PVA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BEZIRK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJV4101-BEZIRK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJV4101-BEZIRK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BEZRUNDE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJV4101-BEZRUNDE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJV4101-BEZRUNDE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BEABLST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJV4101-BEABLST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJV4101-BEABLST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ROUTE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJV4101-ROUTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJV4101-ROUTE.
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_RJV4101_STR, 
FVNR TYPE STRING,
FVART TYPE STRING,
FVGRUND TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
LFARTLOG TYPE STRING,
DRUCKEREI TYPE STRING,
VKBURZUS TYPE STRING,
FVVERURS TYPE STRING,
ZUSTELLER TYPE STRING,
VSGZUSTLR TYPE STRING,
DRERZ TYPE STRING,
PVA TYPE STRING,
VRSNDDATUM TYPE STRING,
FEHLERSEIT TYPE STRING,
BEZIRK TYPE STRING,
BEZRUNDE TYPE STRING,
BEABLST TYPE STRING,
ROUTE TYPE STRING,
XNACHLIEF TYPE STRING,
XNBKZ TYPE STRING,
XBEZLIEGT TYPE STRING,
XBEZSPAET TYPE STRING,
XPOSTINFO TYPE STRING,
ERFUSER TYPE STRING,
ERFDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJV4101_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_RJV4101_STR-FVNR sy-vline 
WA_RJV4101_STR-FVART sy-vline 
WA_RJV4101_STR-FVGRUND sy-vline 
WA_RJV4101_STR-VKORG sy-vline 
WA_RJV4101_STR-VTWEG sy-vline 
WA_RJV4101_STR-LFARTLOG sy-vline 
WA_RJV4101_STR-DRUCKEREI sy-vline 
WA_RJV4101_STR-VKBURZUS sy-vline 
WA_RJV4101_STR-FVVERURS sy-vline 
WA_RJV4101_STR-ZUSTELLER sy-vline 
WA_RJV4101_STR-VSGZUSTLR sy-vline 
WA_RJV4101_STR-DRERZ sy-vline 
WA_RJV4101_STR-PVA sy-vline 
WA_RJV4101_STR-VRSNDDATUM sy-vline 
WA_RJV4101_STR-FEHLERSEIT sy-vline 
WA_RJV4101_STR-BEZIRK sy-vline 
WA_RJV4101_STR-BEZRUNDE sy-vline 
WA_RJV4101_STR-BEABLST sy-vline 
WA_RJV4101_STR-ROUTE sy-vline 
WA_RJV4101_STR-XNACHLIEF sy-vline 
WA_RJV4101_STR-XNBKZ sy-vline 
WA_RJV4101_STR-XBEZLIEGT sy-vline 
WA_RJV4101_STR-XBEZSPAET sy-vline 
WA_RJV4101_STR-XPOSTINFO sy-vline 
WA_RJV4101_STR-ERFUSER sy-vline 
WA_RJV4101_STR-ERFDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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