ABAP Select data from SAP table IRHEADER17 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP IRHEADER17 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 IRHEADER17. 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 IRHEADER17 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_IRHEADER17 TYPE STANDARD TABLE OF IRHEADER17,
      WA_IRHEADER17 TYPE IRHEADER17,
      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: <IRHEADER17> TYPE IRHEADER17.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IRHEADER17.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IRHEADER17
  INTO TABLE IT_IRHEADER17.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IRHEADER17
*  INTO TABLE @DATA(IT_IRHEADER172).
*--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_IRHEADER17 INDEX 1 INTO DATA(WA_IRHEADER172).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IRHEADER17 ASSIGNING <IRHEADER17>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IRHEADER17>-CONTROLLER = 1.
<IRHEADER17>-TEST_MESSAGE = 1.
<IRHEADER17>-KEYS = 1.
<IRHEADER17>-CONTROLLER = 1.
<IRHEADER17>-KEY = 1.

ENDLOOP.

LOOP AT IT_IRHEADER17 INTO WA_IRHEADER17.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IRHEADER17-PERIOD_END, sy-vline,
  WA_IRHEADER17-PRINCIPAL, sy-vline,
  WA_IRHEADER17-CONTROLLER, sy-vline,
  WA_IRHEADER17-CONTACT, sy-vline,
  WA_IRHEADER17-CONTROLLER, sy-vline,
  WA_IRHEADER17-NAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IRHEADER17 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_IRHEADER17 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_IRHEADER17 INTO WA_IRHEADER17.


*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_IRHEADER17_STR, 
CONTROLLER TYPE STRING,
TEST_MESSAGE 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,END OF T_EKKO_STR.
DATA: WA_IRHEADER17_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_IRHEADER17_STR-CONTROLLER sy-vline 
WA_IRHEADER17_STR-TEST_MESSAGE sy-vline 
WA_IRHEADER17_STR-KEYS sy-vline 
WA_IRHEADER17_STR-CONTROLLER sy-vline 
WA_IRHEADER17_STR-KEY sy-vline 
WA_IRHEADER17_STR-PERIOD_END sy-vline 
WA_IRHEADER17_STR-PRINCIPAL sy-vline 
WA_IRHEADER17_STR-CONTROLLER sy-vline 
WA_IRHEADER17_STR-CONTACT sy-vline 
WA_IRHEADER17_STR-CONTROLLER sy-vline 
WA_IRHEADER17_STR-NAME sy-vline 
WA_IRHEADER17_STR-CONTROLLER sy-vline 
WA_IRHEADER17_STR-TTL sy-vline 
WA_IRHEADER17_STR-FORE sy-vline 
WA_IRHEADER17_STR-SUR sy-vline 
WA_IRHEADER17_STR-EMAIL sy-vline 
WA_IRHEADER17_STR-TELEPHONE sy-vline 
WA_IRHEADER17_STR-FAX sy-vline 
WA_IRHEADER17_STR-AGENT sy-vline 
WA_IRHEADER17_STR-CONTROLLER sy-vline 
WA_IRHEADER17_STR-AGENT_ID sy-vline 
WA_IRHEADER17_STR-COMPANY sy-vline 
WA_IRHEADER17_STR-ADDRESS sy-vline 
WA_IRHEADER17_STR-CONTROLLER sy-vline 
WA_IRHEADER17_STR-LINE sy-vline 
WA_IRHEADER17_STR-POST_CODE sy-vline 
WA_IRHEADER17_STR-COUNTRY sy-vline 
WA_IRHEADER17_STR-CONTACT sy-vline 
WA_IRHEADER17_STR-CONTROLLER sy-vline 
WA_IRHEADER17_STR-NAME sy-vline 
WA_IRHEADER17_STR-CONTROLLER sy-vline 
WA_IRHEADER17_STR-TTL sy-vline 
WA_IRHEADER17_STR-FORE sy-vline 
WA_IRHEADER17_STR-SUR sy-vline 
WA_IRHEADER17_STR-EMAIL sy-vline 
WA_IRHEADER17_STR-TELEPHONE sy-vline 
WA_IRHEADER17_STR-FAX sy-vline 
WA_IRHEADER17_STR-DEFAULT_CURRENCY sy-vline 
WA_IRHEADER17_STR-MANIFEST sy-vline 
WA_IRHEADER17_STR-CONTROLLER sy-vline 
WA_IRHEADER17_STR-CONTAINS sy-vline 
WA_IRHEADER17_STR-CONTROLLER sy-vline 
WA_IRHEADER17_STR-REFERENCE sy-vline 
WA_IRHEADER17_STR-IRMARK sy-vline 
WA_IRHEADER17_STR-CONTROLLER sy-vline 
WA_IRHEADER17_STR-TYPE sy-vline 
WA_IRHEADER17_STR-CONTENT sy-vline 
WA_IRHEADER17_STR-SENDER sy-vline      INTO ld_text SEPARATED BY SPACE.

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