ABAP Select data from SAP table RECNVICNSCSAU into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RECNVICNSCSAU
*  INTO TABLE @DATA(IT_RECNVICNSCSAU2).
*--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_RECNVICNSCSAU INDEX 1 INTO DATA(WA_RECNVICNSCSAU2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RECNVICNSCSAU>-MANDT = 1.
<RECNVICNSCSAU>-INTRENO = 1.
<RECNVICNSCSAU>-SABRG = 1.
<RECNVICNSCSAU>-OBJNR = 1.
<RECNVICNSCSAU>-DGULTAB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RECNVICNSCSAU-BABRE, sy-vline,
  WA_RECNVICNSCSAU-XEINHEIT, sy-vline,
  WA_RECNVICNSCSAU-OBJID, sy-vline,
  WA_RECNVICNSCSAU-OBJTXT, sy-vline,
  WA_RECNVICNSCSAU-JSELECTED, sy-vline,
  WA_RECNVICNSCSAU-XUMLEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RECNVICNSCSAU 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_RECNVICNSCSAU 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_RECNVICNSCSAU INTO WA_RECNVICNSCSAU.


*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_RECNVICNSCSAU_STR, 
MANDT TYPE STRING,
INTRENO TYPE STRING,
SABRG TYPE STRING,
OBJNR TYPE STRING,
DGULTAB TYPE STRING,
BABRE TYPE STRING,
XEINHEIT TYPE STRING,
OBJID TYPE STRING,
OBJTXT TYPE STRING,
JSELECTED TYPE STRING,
XUMLEL TYPE STRING,
BUT_OBJECT TYPE STRING,
RECNAFOBJ TYPE STRING,
BUT_ABR_OBJ TYPE STRING,
ABR_OBJ_ACT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RECNVICNSCSAU_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_RECNVICNSCSAU_STR-MANDT sy-vline 
WA_RECNVICNSCSAU_STR-INTRENO sy-vline 
WA_RECNVICNSCSAU_STR-SABRG sy-vline 
WA_RECNVICNSCSAU_STR-OBJNR sy-vline 
WA_RECNVICNSCSAU_STR-DGULTAB sy-vline 
WA_RECNVICNSCSAU_STR-BABRE sy-vline 
WA_RECNVICNSCSAU_STR-XEINHEIT sy-vline 
WA_RECNVICNSCSAU_STR-OBJID sy-vline 
WA_RECNVICNSCSAU_STR-OBJTXT sy-vline 
WA_RECNVICNSCSAU_STR-JSELECTED sy-vline 
WA_RECNVICNSCSAU_STR-XUMLEL sy-vline 
WA_RECNVICNSCSAU_STR-BUT_OBJECT sy-vline 
WA_RECNVICNSCSAU_STR-RECNAFOBJ sy-vline 
WA_RECNVICNSCSAU_STR-BUT_ABR_OBJ sy-vline 
WA_RECNVICNSCSAU_STR-ABR_OBJ_ACT sy-vline      INTO ld_text SEPARATED BY SPACE.

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