ABAP Select data from SAP table UCD_SX_DA_NITOT2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP UCD_SX_DA_NITOT2 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 UCD_SX_DA_NITOT2. 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 UCD_SX_DA_NITOT2 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_UCD_SX_DA_NITOT2 TYPE STANDARD TABLE OF UCD_SX_DA_NITOT2,
      WA_UCD_SX_DA_NITOT2 TYPE UCD_SX_DA_NITOT2,
      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: <UCD_SX_DA_NITOT2> TYPE UCD_SX_DA_NITOT2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_UCD_SX_DA_NITOT2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM UCD_SX_DA_NITOT2
  INTO TABLE IT_UCD_SX_DA_NITOT2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UCD_SX_DA_NITOT2
*  INTO TABLE @DATA(IT_UCD_SX_DA_NITOT22).
*--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_UCD_SX_DA_NITOT2 INDEX 1 INTO DATA(WA_UCD_SX_DA_NITOT22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_UCD_SX_DA_NITOT2 ASSIGNING <UCD_SX_DA_NITOT2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UCD_SX_DA_NITOT2>-DTAX = 1.
<UCD_SX_DA_NITOT2>-S_CHAR = 1.
<UCD_SX_DA_NITOT2>-INCLUDE1 = 1.
<UCD_SX_DA_NITOT2>-DUMMY = 1.
<UCD_SX_DA_NITOT2>-INCLUDE2 = 1.

ENDLOOP.

LOOP AT IT_UCD_SX_DA_NITOT2 INTO WA_UCD_SX_DA_NITOT2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UCD_SX_DA_NITOT2-DUMMY, sy-vline,
  WA_UCD_SX_DA_NITOT2-INCLUDE3, sy-vline,
  WA_UCD_SX_DA_NITOT2-DUMMY, sy-vline,
  WA_UCD_SX_DA_NITOT2-INCLUDE4, sy-vline,
  WA_UCD_SX_DA_NITOT2-DUMMY, sy-vline,
  WA_UCD_SX_DA_NITOT2-INCLUDE5, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UCD_SX_DA_NITOT2 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_UCD_SX_DA_NITOT2 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_UCD_SX_DA_NITOT2 INTO WA_UCD_SX_DA_NITOT2.


*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_UCD_SX_DA_NITOT2_STR, 
DTAX TYPE STRING,
S_CHAR TYPE STRING,
INCLUDE1 TYPE STRING,
DUMMY TYPE STRING,
INCLUDE2 TYPE STRING,
DUMMY TYPE STRING,
INCLUDE3 TYPE STRING,
DUMMY TYPE STRING,
INCLUDE4 TYPE STRING,
DUMMY TYPE STRING,
INCLUDE5 TYPE STRING,
DUMMY TYPE STRING,
INCLUDE6 TYPE STRING,
DUMMY TYPE STRING,
INCLUDE7 TYPE STRING,
DUMMY TYPE STRING,
S_KFIG TYPE STRING,
DUMMY TYPE STRING,
DTAXRATE TYPE STRING,
DEBIT TYPE STRING,
S_TAX TYPE STRING,
DUMMY TYPE STRING,
S_TAX_NEW TYPE STRING,
DUMMY TYPE STRING,
S_TAX_OLD TYPE STRING,
DUMMY TYPE STRING,
S_NEW TYPE STRING,
DUMMY TYPE STRING,
S_OLD TYPE STRING,
DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UCD_SX_DA_NITOT2_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_UCD_SX_DA_NITOT2_STR-DTAX sy-vline 
WA_UCD_SX_DA_NITOT2_STR-S_CHAR sy-vline 
WA_UCD_SX_DA_NITOT2_STR-INCLUDE1 sy-vline 
WA_UCD_SX_DA_NITOT2_STR-DUMMY sy-vline 
WA_UCD_SX_DA_NITOT2_STR-INCLUDE2 sy-vline 
WA_UCD_SX_DA_NITOT2_STR-DUMMY sy-vline 
WA_UCD_SX_DA_NITOT2_STR-INCLUDE3 sy-vline 
WA_UCD_SX_DA_NITOT2_STR-DUMMY sy-vline 
WA_UCD_SX_DA_NITOT2_STR-INCLUDE4 sy-vline 
WA_UCD_SX_DA_NITOT2_STR-DUMMY sy-vline 
WA_UCD_SX_DA_NITOT2_STR-INCLUDE5 sy-vline 
WA_UCD_SX_DA_NITOT2_STR-DUMMY sy-vline 
WA_UCD_SX_DA_NITOT2_STR-INCLUDE6 sy-vline 
WA_UCD_SX_DA_NITOT2_STR-DUMMY sy-vline 
WA_UCD_SX_DA_NITOT2_STR-INCLUDE7 sy-vline 
WA_UCD_SX_DA_NITOT2_STR-DUMMY sy-vline 
WA_UCD_SX_DA_NITOT2_STR-S_KFIG sy-vline 
WA_UCD_SX_DA_NITOT2_STR-DUMMY sy-vline 
WA_UCD_SX_DA_NITOT2_STR-DTAXRATE sy-vline 
WA_UCD_SX_DA_NITOT2_STR-DEBIT sy-vline 
WA_UCD_SX_DA_NITOT2_STR-S_TAX sy-vline 
WA_UCD_SX_DA_NITOT2_STR-DUMMY sy-vline 
WA_UCD_SX_DA_NITOT2_STR-S_TAX_NEW sy-vline 
WA_UCD_SX_DA_NITOT2_STR-DUMMY sy-vline 
WA_UCD_SX_DA_NITOT2_STR-S_TAX_OLD sy-vline 
WA_UCD_SX_DA_NITOT2_STR-DUMMY sy-vline 
WA_UCD_SX_DA_NITOT2_STR-S_NEW sy-vline 
WA_UCD_SX_DA_NITOT2_STR-DUMMY sy-vline 
WA_UCD_SX_DA_NITOT2_STR-S_OLD sy-vline 
WA_UCD_SX_DA_NITOT2_STR-DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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