ABAP Select data from SAP table SN1TER into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SN1TER 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 SN1TER. 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 SN1TER 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_SN1TER TYPE STANDARD TABLE OF SN1TER,
      WA_SN1TER TYPE SN1TER,
      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: <SN1TER> TYPE SN1TER.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_SN1TER.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM SN1TER
  INTO TABLE IT_SN1TER.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SN1TER
*  INTO TABLE @DATA(IT_SN1TER2).
*--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_SN1TER INDEX 1 INTO DATA(WA_SN1TER2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SN1TER ASSIGNING <SN1TER>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SN1TER>-ID = 1.
<SN1TER>-TRZ01 = 1.
<SN1TER>-STATE = 1.
<SN1TER>-TRZ02 = 1.
<SN1TER>-TERDT = 1.

ENDLOOP.

LOOP AT IT_SN1TER INTO WA_SN1TER.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SN1TER-TRZ03, sy-vline,
  WA_SN1TER-TERZT, sy-vline,
  WA_SN1TER-TRZ04, sy-vline,
  WA_SN1TER-PLDTE, sy-vline,
  WA_SN1TER-TRZ05, sy-vline,
  WA_SN1TER-NFDKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SN1TER 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_SN1TER 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_SN1TER INTO WA_SN1TER.


*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 LNRLS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SN1TER-LNRLS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SN1TER-LNRLS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PATNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SN1TER-PATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SN1TER-PATNR.
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_SN1TER_STR, 
ID TYPE STRING,
TRZ01 TYPE STRING,
STATE TYPE STRING,
TRZ02 TYPE STRING,
TERDT TYPE STRING,
TRZ03 TYPE STRING,
TERZT TYPE STRING,
TRZ04 TYPE STRING,
PLDTE TYPE STRING,
TRZ05 TYPE STRING,
NFDKZ TYPE STRING,
TRZ06 TYPE STRING,
LSTTX TYPE STRING,
TRZ07 TYPE STRING,
LNRLS TYPE STRING,
TRZ08 TYPE STRING,
ANZKZ TYPE STRING,
TRZ09 TYPE STRING,
PATNA TYPE STRING,
TRZ10 TYPE STRING,
INFO1 TYPE STRING,
TRZ11 TYPE STRING,
INFO1ID TYPE STRING,
TRZ12 TYPE STRING,
INFO1AN TYPE STRING,
TRZ13 TYPE STRING,
INFO2 TYPE STRING,
TRZ14 TYPE STRING,
INFO2ID TYPE STRING,
TRZ15 TYPE STRING,
INFO2AN TYPE STRING,
TRZ16 TYPE STRING,
INFO3 TYPE STRING,
TRZ17 TYPE STRING,
INFO3ID TYPE STRING,
TRZ18 TYPE STRING,
INFO3AN TYPE STRING,
TRZ19 TYPE STRING,
INFO4 TYPE STRING,
TRZ20 TYPE STRING,
INFO4ID TYPE STRING,
TRZ21 TYPE STRING,
INFO4AN TYPE STRING,
TRZ22 TYPE STRING,
UEBLK TYPE STRING,
TRZ23 TYPE STRING,
DBAKT TYPE STRING,
TRZ24 TYPE STRING,
KONSK TYPE STRING,
TRZ25 TYPE STRING,
FIXZK TYPE STRING,
TRZ26 TYPE STRING,
FARBE TYPE STRING,
TRZ27 TYPE STRING,
PATMANDT TYPE STRING,
TRZ28 TYPE STRING,
PATNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SN1TER_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_SN1TER_STR-ID sy-vline 
WA_SN1TER_STR-TRZ01 sy-vline 
WA_SN1TER_STR-STATE sy-vline 
WA_SN1TER_STR-TRZ02 sy-vline 
WA_SN1TER_STR-TERDT sy-vline 
WA_SN1TER_STR-TRZ03 sy-vline 
WA_SN1TER_STR-TERZT sy-vline 
WA_SN1TER_STR-TRZ04 sy-vline 
WA_SN1TER_STR-PLDTE sy-vline 
WA_SN1TER_STR-TRZ05 sy-vline 
WA_SN1TER_STR-NFDKZ sy-vline 
WA_SN1TER_STR-TRZ06 sy-vline 
WA_SN1TER_STR-LSTTX sy-vline 
WA_SN1TER_STR-TRZ07 sy-vline 
WA_SN1TER_STR-LNRLS sy-vline 
WA_SN1TER_STR-TRZ08 sy-vline 
WA_SN1TER_STR-ANZKZ sy-vline 
WA_SN1TER_STR-TRZ09 sy-vline 
WA_SN1TER_STR-PATNA sy-vline 
WA_SN1TER_STR-TRZ10 sy-vline 
WA_SN1TER_STR-INFO1 sy-vline 
WA_SN1TER_STR-TRZ11 sy-vline 
WA_SN1TER_STR-INFO1ID sy-vline 
WA_SN1TER_STR-TRZ12 sy-vline 
WA_SN1TER_STR-INFO1AN sy-vline 
WA_SN1TER_STR-TRZ13 sy-vline 
WA_SN1TER_STR-INFO2 sy-vline 
WA_SN1TER_STR-TRZ14 sy-vline 
WA_SN1TER_STR-INFO2ID sy-vline 
WA_SN1TER_STR-TRZ15 sy-vline 
WA_SN1TER_STR-INFO2AN sy-vline 
WA_SN1TER_STR-TRZ16 sy-vline 
WA_SN1TER_STR-INFO3 sy-vline 
WA_SN1TER_STR-TRZ17 sy-vline 
WA_SN1TER_STR-INFO3ID sy-vline 
WA_SN1TER_STR-TRZ18 sy-vline 
WA_SN1TER_STR-INFO3AN sy-vline 
WA_SN1TER_STR-TRZ19 sy-vline 
WA_SN1TER_STR-INFO4 sy-vline 
WA_SN1TER_STR-TRZ20 sy-vline 
WA_SN1TER_STR-INFO4ID sy-vline 
WA_SN1TER_STR-TRZ21 sy-vline 
WA_SN1TER_STR-INFO4AN sy-vline 
WA_SN1TER_STR-TRZ22 sy-vline 
WA_SN1TER_STR-UEBLK sy-vline 
WA_SN1TER_STR-TRZ23 sy-vline 
WA_SN1TER_STR-DBAKT sy-vline 
WA_SN1TER_STR-TRZ24 sy-vline 
WA_SN1TER_STR-KONSK sy-vline 
WA_SN1TER_STR-TRZ25 sy-vline 
WA_SN1TER_STR-FIXZK sy-vline 
WA_SN1TER_STR-TRZ26 sy-vline 
WA_SN1TER_STR-FARBE sy-vline 
WA_SN1TER_STR-TRZ27 sy-vline 
WA_SN1TER_STR-PATMANDT sy-vline 
WA_SN1TER_STR-TRZ28 sy-vline 
WA_SN1TER_STR-PATNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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