ABAP Select data from SAP table RNV2000_MOVE_VISIT_X into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RNV2000_MOVE_VISIT_X 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 RNV2000_MOVE_VISIT_X. 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 RNV2000_MOVE_VISIT_X 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_RNV2000_MOVE_VISIT_X TYPE STANDARD TABLE OF RNV2000_MOVE_VISIT_X,
      WA_RNV2000_MOVE_VISIT_X TYPE RNV2000_MOVE_VISIT_X,
      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: <RNV2000_MOVE_VISIT_X> TYPE RNV2000_MOVE_VISIT_X.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RNV2000_MOVE_VISIT_X.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RNV2000_MOVE_VISIT_X
  INTO TABLE IT_RNV2000_MOVE_VISIT_X.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RNV2000_MOVE_VISIT_X
*  INTO TABLE @DATA(IT_RNV2000_MOVE_VISIT_X2).
*--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_RNV2000_MOVE_VISIT_X INDEX 1 INTO DATA(WA_RNV2000_MOVE_VISIT_X2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RNV2000_MOVE_VISIT_X ASSIGNING <RNV2000_MOVE_VISIT_X>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RNV2000_MOVE_VISIT_X>-FALARX = 1.
<RNV2000_MOVE_VISIT_X>-ORGAUX = 1.
<RNV2000_MOVE_VISIT_X>-NOTKZX = 1.
<RNV2000_MOVE_VISIT_X>-BWARTX = 1.
<RNV2000_MOVE_VISIT_X>-BWGR1X = 1.

ENDLOOP.

LOOP AT IT_RNV2000_MOVE_VISIT_X INTO WA_RNV2000_MOVE_VISIT_X.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RNV2000_MOVE_VISIT_X-BWGR2X, sy-vline,
  WA_RNV2000_MOVE_VISIT_X-BWIDTX, sy-vline,
  WA_RNV2000_MOVE_VISIT_X-BWIZTX, sy-vline,
  WA_RNV2000_MOVE_VISIT_X-STATUX, sy-vline,
  WA_RNV2000_MOVE_VISIT_X-BWEDTX, sy-vline,
  WA_RNV2000_MOVE_VISIT_X-BWEZTX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RNV2000_MOVE_VISIT_X 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_RNV2000_MOVE_VISIT_X 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_RNV2000_MOVE_VISIT_X INTO WA_RNV2000_MOVE_VISIT_X.


*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_RNV2000_MOVE_VISIT_X_STR, 
FALARX TYPE STRING,
ORGAUX TYPE STRING,
NOTKZX TYPE STRING,
BWARTX TYPE STRING,
BWGR1X TYPE STRING,
BWGR2X TYPE STRING,
BWIDTX TYPE STRING,
BWIZTX TYPE STRING,
STATUX TYPE STRING,
BWEDTX TYPE STRING,
BWEZTX TYPE STRING,
BEKATX TYPE STRING,
CLASSX TYPE STRING,
DAUERX TYPE STRING,
BCODEX TYPE STRING,
RFSRCX TYPE STRING,
EXTKHX TYPE STRING,
TEXT_BEWX TYPE STRING,
ORGPFX TYPE STRING,
ORGFAX TYPE STRING,
FACHRX TYPE STRING,
ZIMMRX TYPE STRING,
BETTX TYPE STRING,
DSPTYX TYPE STRING,
VISTYX TYPE STRING,
NWATSPENDEX TYPE STRING,
NWATBEHANDX TYPE STRING,
NWATVPNRX TYPE STRING,
NWATEREFNOX TYPE STRING,
NWATEREFCDX TYPE STRING,
NWATEREFIDX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RNV2000_MOVE_VISIT_X_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_RNV2000_MOVE_VISIT_X_STR-FALARX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-ORGAUX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-NOTKZX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-BWARTX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-BWGR1X sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-BWGR2X sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-BWIDTX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-BWIZTX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-STATUX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-BWEDTX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-BWEZTX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-BEKATX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-CLASSX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-DAUERX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-BCODEX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-RFSRCX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-EXTKHX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-TEXT_BEWX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-ORGPFX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-ORGFAX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-FACHRX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-ZIMMRX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-BETTX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-DSPTYX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-VISTYX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-NWATSPENDEX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-NWATBEHANDX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-NWATVPNRX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-NWATEREFNOX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-NWATEREFCDX sy-vline 
WA_RNV2000_MOVE_VISIT_X_STR-NWATEREFIDX sy-vline      INTO ld_text SEPARATED BY SPACE.

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