ABAP Select data from SAP table SATR_AUSTAB_N into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SATR_AUSTAB_N
*  INTO TABLE @DATA(IT_SATR_AUSTAB_N2).
*--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_SATR_AUSTAB_N INDEX 1 INTO DATA(WA_SATR_AUSTAB_N2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SATR_AUSTAB_N>-FLAG_RECTYPE = 1.
<SATR_AUSTAB_N>-INDEX = 1.
<SATR_AUSTAB_N>-START = 1.
<SATR_AUSTAB_N>-END = 1.
<SATR_AUSTAB_N>-CALLER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SATR_AUSTAB_N-EBENE, sy-vline,
  WA_SATR_AUSTAB_N-RECTYPE, sy-vline,
  WA_SATR_AUSTAB_N-ID, sy-vline,
  WA_SATR_AUSTAB_N-SUBID, sy-vline,
  WA_SATR_AUSTAB_N-EVENT, sy-vline,
  WA_SATR_AUSTAB_N-CONTOFFS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SATR_AUSTAB_N 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_SATR_AUSTAB_N 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_SATR_AUSTAB_N INTO WA_SATR_AUSTAB_N.


*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_SATR_AUSTAB_N_STR, 
FLAG_RECTYPE TYPE STRING,
INDEX TYPE STRING,
START TYPE STRING,
END TYPE STRING,
CALLER TYPE STRING,
EBENE TYPE STRING,
RECTYPE TYPE STRING,
ID TYPE STRING,
SUBID TYPE STRING,
EVENT TYPE STRING,
CONTOFFS TYPE STRING,
BRUTTO TYPE STRING,
NETTO TYPE STRING,
PROGINDEX TYPE STRING,
METHINDEX TYPE STRING,
TEXTINDEX TYPE STRING,
PR_2INDEX TYPE STRING,
PAKETINDEX TYPE STRING,
STORAGE TYPE STRING,
ET_TYPE TYPE STRING,
EG_GROUP TYPE STRING,
STORAGE_INCREASE TYPE STRING,
INSTANCE TYPE STRING,
TABINDEX TYPE STRING,
INTFINDEX TYPE STRING,
TIME2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SATR_AUSTAB_N_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_SATR_AUSTAB_N_STR-FLAG_RECTYPE sy-vline 
WA_SATR_AUSTAB_N_STR-INDEX sy-vline 
WA_SATR_AUSTAB_N_STR-START sy-vline 
WA_SATR_AUSTAB_N_STR-END sy-vline 
WA_SATR_AUSTAB_N_STR-CALLER sy-vline 
WA_SATR_AUSTAB_N_STR-EBENE sy-vline 
WA_SATR_AUSTAB_N_STR-RECTYPE sy-vline 
WA_SATR_AUSTAB_N_STR-ID sy-vline 
WA_SATR_AUSTAB_N_STR-SUBID sy-vline 
WA_SATR_AUSTAB_N_STR-EVENT sy-vline 
WA_SATR_AUSTAB_N_STR-CONTOFFS sy-vline 
WA_SATR_AUSTAB_N_STR-BRUTTO sy-vline 
WA_SATR_AUSTAB_N_STR-NETTO sy-vline 
WA_SATR_AUSTAB_N_STR-PROGINDEX sy-vline 
WA_SATR_AUSTAB_N_STR-METHINDEX sy-vline 
WA_SATR_AUSTAB_N_STR-TEXTINDEX sy-vline 
WA_SATR_AUSTAB_N_STR-PR_2INDEX sy-vline 
WA_SATR_AUSTAB_N_STR-PAKETINDEX sy-vline 
WA_SATR_AUSTAB_N_STR-STORAGE sy-vline 
WA_SATR_AUSTAB_N_STR-ET_TYPE sy-vline 
WA_SATR_AUSTAB_N_STR-EG_GROUP sy-vline 
WA_SATR_AUSTAB_N_STR-STORAGE_INCREASE sy-vline 
WA_SATR_AUSTAB_N_STR-INSTANCE sy-vline 
WA_SATR_AUSTAB_N_STR-TABINDEX sy-vline 
WA_SATR_AUSTAB_N_STR-INTFINDEX sy-vline 
WA_SATR_AUSTAB_N_STR-TIME2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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