ABAP Select data from SAP table IRENVELOPE28 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IRENVELOPE28 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 IRENVELOPE28. 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 IRENVELOPE28 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_IRENVELOPE28 TYPE STANDARD TABLE OF IRENVELOPE28,
      WA_IRENVELOPE28 TYPE IRENVELOPE28,
      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: <IRENVELOPE28> TYPE IRENVELOPE28.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IRENVELOPE28.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IRENVELOPE28
  INTO TABLE IT_IRENVELOPE28.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IRENVELOPE28
*  INTO TABLE @DATA(IT_IRENVELOPE282).
*--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_IRENVELOPE28 INDEX 1 INTO DATA(WA_IRENVELOPE282).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IRENVELOPE28 ASSIGNING <IRENVELOPE28>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IRENVELOPE28>-CONTROLLER = 1.
<IRENVELOPE28>-IRHEADER = 1.
<IRENVELOPE28>-CONTROLLER = 1.
<IRENVELOPE28>-KEYS = 1.
<IRENVELOPE28>-CONTROLLER = 1.

ENDLOOP.

LOOP AT IT_IRENVELOPE28 INTO WA_IRENVELOPE28.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IRENVELOPE28-KEY, sy-vline,
  WA_IRENVELOPE28-PERIOD_END, sy-vline,
  WA_IRENVELOPE28-PRINCIPAL, sy-vline,
  WA_IRENVELOPE28-CONTROLLER, sy-vline,
  WA_IRENVELOPE28-CONTACT, sy-vline,
  WA_IRENVELOPE28-CONTROLLER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IRENVELOPE28 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_IRENVELOPE28 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_IRENVELOPE28 INTO WA_IRENVELOPE28.


*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_IRENVELOPE28_STR, 
CONTROLLER TYPE STRING,
IRHEADER TYPE STRING,
CONTROLLER TYPE STRING,
KEYS TYPE STRING,
CONTROLLER TYPE STRING,
KEY TYPE STRING,
PERIOD_END TYPE STRING,
PRINCIPAL TYPE STRING,
CONTROLLER TYPE STRING,
CONTACT TYPE STRING,
CONTROLLER TYPE STRING,
NAME TYPE STRING,
CONTROLLER TYPE STRING,
TTL TYPE STRING,
FORE TYPE STRING,
SUR TYPE STRING,
EMAIL TYPE STRING,
TELEPHONE TYPE STRING,
FAX TYPE STRING,
AGENT TYPE STRING,
CONTROLLER TYPE STRING,
AGENT_ID TYPE STRING,
COMPANY TYPE STRING,
ADDRESS TYPE STRING,
CONTROLLER TYPE STRING,
LINE TYPE STRING,
POST_CODE TYPE STRING,
COUNTRY TYPE STRING,
CONTACT TYPE STRING,
CONTROLLER TYPE STRING,
NAME TYPE STRING,
CONTROLLER TYPE STRING,
TTL TYPE STRING,
FORE TYPE STRING,
SUR TYPE STRING,
EMAIL TYPE STRING,
TELEPHONE TYPE STRING,
FAX TYPE STRING,
DEFAULT_CURRENCY TYPE STRING,
MANIFEST TYPE STRING,
CONTROLLER TYPE STRING,
CONTAINS TYPE STRING,
CONTROLLER TYPE STRING,
REFERENCE TYPE STRING,
IRMARK TYPE STRING,
CONTROLLER TYPE STRING,
TYPE TYPE STRING,
CONTENT TYPE STRING,
SENDER TYPE STRING,
FULL_PAYMENT_SUBMISSION TYPE STRING,
CONTROLLER TYPE STRING,
EMP_REFS TYPE STRING,
CONTROLLER TYPE STRING,
OFFICE_NO TYPE STRING,
PAYE_REF TYPE STRING,
AOREF TYPE STRING,
CHOICE TYPE STRING,
SELECTION TYPE STRING,
CONTROLLER TYPE STRING,
SAUTR TYPE STRING,
COTAXREF TYPE STRING,
RELATED_TAX_YEAR TYPE STRING,
CHOICE TYPE STRING,
SELECTION TYPE STRING,
CONTROLLER TYPE STRING,
EMPLOYEE TYPE STRING,
COMPRESSED_PART TYPE STRING,
CONTROLLER TYPE STRING,
TYPE TYPE STRING,
CONTENT TYPE STRING,
FINAL_SUBMISSION TYPE STRING,
CONTROLLER TYPE STRING,
BECAUSE_SCHEME_CEASED TYPE STRING,
DATE_SCHEME_CEASED TYPE STRING,
FOR_YEAR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IRENVELOPE28_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_IRENVELOPE28_STR-CONTROLLER sy-vline 
WA_IRENVELOPE28_STR-IRHEADER sy-vline 
WA_IRENVELOPE28_STR-CONTROLLER sy-vline 
WA_IRENVELOPE28_STR-KEYS sy-vline 
WA_IRENVELOPE28_STR-CONTROLLER sy-vline 
WA_IRENVELOPE28_STR-KEY sy-vline 
WA_IRENVELOPE28_STR-PERIOD_END sy-vline 
WA_IRENVELOPE28_STR-PRINCIPAL sy-vline 
WA_IRENVELOPE28_STR-CONTROLLER sy-vline 
WA_IRENVELOPE28_STR-CONTACT sy-vline 
WA_IRENVELOPE28_STR-CONTROLLER sy-vline 
WA_IRENVELOPE28_STR-NAME sy-vline 
WA_IRENVELOPE28_STR-CONTROLLER sy-vline 
WA_IRENVELOPE28_STR-TTL sy-vline 
WA_IRENVELOPE28_STR-FORE sy-vline 
WA_IRENVELOPE28_STR-SUR sy-vline 
WA_IRENVELOPE28_STR-EMAIL sy-vline 
WA_IRENVELOPE28_STR-TELEPHONE sy-vline 
WA_IRENVELOPE28_STR-FAX sy-vline 
WA_IRENVELOPE28_STR-AGENT sy-vline 
WA_IRENVELOPE28_STR-CONTROLLER sy-vline 
WA_IRENVELOPE28_STR-AGENT_ID sy-vline 
WA_IRENVELOPE28_STR-COMPANY sy-vline 
WA_IRENVELOPE28_STR-ADDRESS sy-vline 
WA_IRENVELOPE28_STR-CONTROLLER sy-vline 
WA_IRENVELOPE28_STR-LINE sy-vline 
WA_IRENVELOPE28_STR-POST_CODE sy-vline 
WA_IRENVELOPE28_STR-COUNTRY sy-vline 
WA_IRENVELOPE28_STR-CONTACT sy-vline 
WA_IRENVELOPE28_STR-CONTROLLER sy-vline 
WA_IRENVELOPE28_STR-NAME sy-vline 
WA_IRENVELOPE28_STR-CONTROLLER sy-vline 
WA_IRENVELOPE28_STR-TTL sy-vline 
WA_IRENVELOPE28_STR-FORE sy-vline 
WA_IRENVELOPE28_STR-SUR sy-vline 
WA_IRENVELOPE28_STR-EMAIL sy-vline 
WA_IRENVELOPE28_STR-TELEPHONE sy-vline 
WA_IRENVELOPE28_STR-FAX sy-vline 
WA_IRENVELOPE28_STR-DEFAULT_CURRENCY sy-vline 
WA_IRENVELOPE28_STR-MANIFEST sy-vline 
WA_IRENVELOPE28_STR-CONTROLLER sy-vline 
WA_IRENVELOPE28_STR-CONTAINS sy-vline 
WA_IRENVELOPE28_STR-CONTROLLER sy-vline 
WA_IRENVELOPE28_STR-REFERENCE sy-vline 
WA_IRENVELOPE28_STR-IRMARK sy-vline 
WA_IRENVELOPE28_STR-CONTROLLER sy-vline 
WA_IRENVELOPE28_STR-TYPE sy-vline 
WA_IRENVELOPE28_STR-CONTENT sy-vline 
WA_IRENVELOPE28_STR-SENDER sy-vline 
WA_IRENVELOPE28_STR-FULL_PAYMENT_SUBMISSION sy-vline 
WA_IRENVELOPE28_STR-CONTROLLER sy-vline 
WA_IRENVELOPE28_STR-EMP_REFS sy-vline 
WA_IRENVELOPE28_STR-CONTROLLER sy-vline 
WA_IRENVELOPE28_STR-OFFICE_NO sy-vline 
WA_IRENVELOPE28_STR-PAYE_REF sy-vline 
WA_IRENVELOPE28_STR-AOREF sy-vline 
WA_IRENVELOPE28_STR-CHOICE sy-vline 
WA_IRENVELOPE28_STR-SELECTION sy-vline 
WA_IRENVELOPE28_STR-CONTROLLER sy-vline 
WA_IRENVELOPE28_STR-SAUTR sy-vline 
WA_IRENVELOPE28_STR-COTAXREF sy-vline 
WA_IRENVELOPE28_STR-RELATED_TAX_YEAR sy-vline 
WA_IRENVELOPE28_STR-CHOICE sy-vline 
WA_IRENVELOPE28_STR-SELECTION sy-vline 
WA_IRENVELOPE28_STR-CONTROLLER sy-vline 
WA_IRENVELOPE28_STR-EMPLOYEE sy-vline 
WA_IRENVELOPE28_STR-COMPRESSED_PART sy-vline 
WA_IRENVELOPE28_STR-CONTROLLER sy-vline 
WA_IRENVELOPE28_STR-TYPE sy-vline 
WA_IRENVELOPE28_STR-CONTENT sy-vline 
WA_IRENVELOPE28_STR-FINAL_SUBMISSION sy-vline 
WA_IRENVELOPE28_STR-CONTROLLER sy-vline 
WA_IRENVELOPE28_STR-BECAUSE_SCHEME_CEASED sy-vline 
WA_IRENVELOPE28_STR-DATE_SCHEME_CEASED sy-vline 
WA_IRENVELOPE28_STR-FOR_YEAR sy-vline      INTO ld_text SEPARATED BY SPACE.

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