ABAP Select data from SAP table TE270 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TE270 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 TE270. 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 TE270 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_TE270 TYPE STANDARD TABLE OF TE270,
      WA_TE270 TYPE TE270,
      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: <TE270> TYPE TE270.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TE270.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TE270
  INTO TABLE IT_TE270.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TE270
*  INTO TABLE @DATA(IT_TE2702).
*--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_TE270 INDEX 1 INTO DATA(WA_TE2702).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TE270 ASSIGNING <TE270>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TE270>-MANDT = 1.
<TE270>-VERLOS = 1.
<TE270>-VERBGL = 1.
<TE270>-BGLLOS = 1.
<TE270>-INTPRF = 1.

ENDLOOP.

LOOP AT IT_TE270 INTO WA_TE270.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TE270-LOSLAGER, sy-vline,
  WA_TE270-CHLOS, sy-vline,
  WA_TE270-LAGINC, sy-vline,
  WA_TE270-NLEG97, sy-vline,
  WA_TE270-NLBGLJ, sy-vline,
  WA_TE270-CHSTI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TE270 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_TE270 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_TE270 INTO WA_TE270.


*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_TE270_STR, 
MANDT TYPE STRING,
VERLOS TYPE STRING,
VERBGL TYPE STRING,
BGLLOS TYPE STRING,
INTPRF TYPE STRING,
LOSLAGER TYPE STRING,
CHLOS TYPE STRING,
LAGINC TYPE STRING,
NLEG97 TYPE STRING,
NLBGLJ TYPE STRING,
CHSTI TYPE STRING,
CHBGL TYPE STRING,
CERTDEV TYPE STRING,
CERTLOTDEV TYPE STRING,
NO_SAMPLE_DEV TYPE STRING,
SEALDATECHECK TYPE STRING,
LOT_BREAKUP_PERI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TE270_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_TE270_STR-MANDT sy-vline 
WA_TE270_STR-VERLOS sy-vline 
WA_TE270_STR-VERBGL sy-vline 
WA_TE270_STR-BGLLOS sy-vline 
WA_TE270_STR-INTPRF sy-vline 
WA_TE270_STR-LOSLAGER sy-vline 
WA_TE270_STR-CHLOS sy-vline 
WA_TE270_STR-LAGINC sy-vline 
WA_TE270_STR-NLEG97 sy-vline 
WA_TE270_STR-NLBGLJ sy-vline 
WA_TE270_STR-CHSTI sy-vline 
WA_TE270_STR-CHBGL sy-vline 
WA_TE270_STR-CERTDEV sy-vline 
WA_TE270_STR-CERTLOTDEV sy-vline 
WA_TE270_STR-NO_SAMPLE_DEV sy-vline 
WA_TE270_STR-SEALDATECHECK sy-vline 
WA_TE270_STR-LOT_BREAKUP_PERI sy-vline      INTO ld_text SEPARATED BY SPACE.

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