ABAP Select data from SAP table RJJSI_VT2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJJSI_VT2 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 RJJSI_VT2. 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 RJJSI_VT2 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_RJJSI_VT2 TYPE STANDARD TABLE OF RJJSI_VT2,
      WA_RJJSI_VT2 TYPE RJJSI_VT2,
      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: <RJJSI_VT2> TYPE RJJSI_VT2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RJJSI_VT2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RJJSI_VT2
  INTO TABLE IT_RJJSI_VT2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJJSI_VT2
*  INTO TABLE @DATA(IT_RJJSI_VT22).
*--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_RJJSI_VT2 INDEX 1 INTO DATA(WA_RJJSI_VT22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RJJSI_VT2 ASSIGNING <RJJSI_VT2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJJSI_VT2>-MANDT = 1.
<RJJSI_VT2>-VBELN = 1.
<RJJSI_VT2>-POSNR = 1.
<RJJSI_VT2>-EIN_NR = 1.
<RJJSI_VT2>-KNDGRUPPE = 1.

ENDLOOP.

LOOP AT IT_RJJSI_VT2 INTO WA_RJJSI_VT2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJJSI_VT2-VERSANDDAT, sy-vline,
  WA_RJJSI_VT2-LFMENGE, sy-vline,
  WA_RJJSI_VT2-BEZRUNDTAT, sy-vline,
  WA_RJJSI_VT2-VAUSGB, sy-vline,
  WA_RJJSI_VT2-LFBNRAUF, sy-vline,
  WA_RJJSI_VT2-LFARTTAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJJSI_VT2 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_RJJSI_VT2 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_RJJSI_VT2 INTO WA_RJJSI_VT2.


*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 VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJJSI_VT2-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJJSI_VT2-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BEZRUNDTAT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJJSI_VT2-BEZRUNDTAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJJSI_VT2-BEZRUNDTAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VAUSGB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJJSI_VT2-VAUSGB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJJSI_VT2-VAUSGB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BEZIRKTAT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJJSI_VT2-BEZIRKTAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJJSI_VT2-BEZIRKTAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GEOEINTAT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJJSI_VT2-GEOEINTAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJJSI_VT2-GEOEINTAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DRERZTAT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJJSI_VT2-DRERZTAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJJSI_VT2-DRERZTAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELEGEINH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJJSI_VT2-BELEGEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJJSI_VT2-BELEGEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SI_NUMMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJJSI_VT2-SI_NUMMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJJSI_VT2-SI_NUMMER.
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_RJJSI_VT2_STR, 
MANDT TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
EIN_NR TYPE STRING,
KNDGRUPPE TYPE STRING,
VERSANDDAT TYPE STRING,
LFMENGE TYPE STRING,
BEZRUNDTAT TYPE STRING,
VAUSGB TYPE STRING,
LFBNRAUF TYPE STRING,
LFARTTAT TYPE STRING,
BEZUGSTYP TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
BEZIRKTAT TYPE STRING,
GEOEINTAT TYPE STRING,
DRUCKEREI TYPE STRING,
DRERZTAT TYPE STRING,
ERSCHDAT TYPE STRING,
SPART TYPE STRING,
BELEGEINH TYPE STRING,
UPOS_NR TYPE STRING,
SI_NUMMER TYPE STRING,
XBEZRNDMOD TYPE STRING,
HERK_RUNDE TYPE STRING,
VRTMENGE_PAM TYPE STRING,
XNO_SI TYPE STRING,
XNO_VT_LBK TYPE STRING,
XERRBEPART TYPE STRING,
XERRMENGE1 TYPE STRING,
XERRMENGE2 TYPE STRING,
XERRMENGE3 TYPE STRING,
XERROR_001 TYPE STRING,
XERROR_002 TYPE STRING,
XERROR_003 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJJSI_VT2_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_RJJSI_VT2_STR-MANDT sy-vline 
WA_RJJSI_VT2_STR-VBELN sy-vline 
WA_RJJSI_VT2_STR-POSNR sy-vline 
WA_RJJSI_VT2_STR-EIN_NR sy-vline 
WA_RJJSI_VT2_STR-KNDGRUPPE sy-vline 
WA_RJJSI_VT2_STR-VERSANDDAT sy-vline 
WA_RJJSI_VT2_STR-LFMENGE sy-vline 
WA_RJJSI_VT2_STR-BEZRUNDTAT sy-vline 
WA_RJJSI_VT2_STR-VAUSGB sy-vline 
WA_RJJSI_VT2_STR-LFBNRAUF sy-vline 
WA_RJJSI_VT2_STR-LFARTTAT sy-vline 
WA_RJJSI_VT2_STR-BEZUGSTYP sy-vline 
WA_RJJSI_VT2_STR-VKORG sy-vline 
WA_RJJSI_VT2_STR-VTWEG sy-vline 
WA_RJJSI_VT2_STR-BEZIRKTAT sy-vline 
WA_RJJSI_VT2_STR-GEOEINTAT sy-vline 
WA_RJJSI_VT2_STR-DRUCKEREI sy-vline 
WA_RJJSI_VT2_STR-DRERZTAT sy-vline 
WA_RJJSI_VT2_STR-ERSCHDAT sy-vline 
WA_RJJSI_VT2_STR-SPART sy-vline 
WA_RJJSI_VT2_STR-BELEGEINH sy-vline 
WA_RJJSI_VT2_STR-UPOS_NR sy-vline 
WA_RJJSI_VT2_STR-SI_NUMMER sy-vline 
WA_RJJSI_VT2_STR-XBEZRNDMOD sy-vline 
WA_RJJSI_VT2_STR-HERK_RUNDE sy-vline 
WA_RJJSI_VT2_STR-VRTMENGE_PAM sy-vline 
WA_RJJSI_VT2_STR-XNO_SI sy-vline 
WA_RJJSI_VT2_STR-XNO_VT_LBK sy-vline 
WA_RJJSI_VT2_STR-XERRBEPART sy-vline 
WA_RJJSI_VT2_STR-XERRMENGE1 sy-vline 
WA_RJJSI_VT2_STR-XERRMENGE2 sy-vline 
WA_RJJSI_VT2_STR-XERRMENGE3 sy-vline 
WA_RJJSI_VT2_STR-XERROR_001 sy-vline 
WA_RJJSI_VT2_STR-XERROR_002 sy-vline 
WA_RJJSI_VT2_STR-XERROR_003 sy-vline      INTO ld_text SEPARATED BY SPACE.

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