ABAP Select data from SAP table IGHONOLIFECYCSTS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IGHONOLIFECYCSTS
*  INTO TABLE @DATA(IT_IGHONOLIFECYCSTS2).
*--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_IGHONOLIFECYCSTS INDEX 1 INTO DATA(WA_IGHONOLIFECYCSTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IGHONOLIFECYCSTS>-MANDT = 1.
<IGHONOLIFECYCSTS>-PRODUCTIONNETWORKID = 1.
<IGHONOLIFECYCSTS>-VALIDFROMDATETIME = 1.
<IGHONOLIFECYCSTS>-VALIDFROMTIMEZONE = 1.
<IGHONOLIFECYCSTS>-VALIDTODATETIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IGHONOLIFECYCSTS-VALIDTOTIMEZONE, sy-vline,
  WA_IGHONOLIFECYCSTS-USERENTEREDTIMEZONE, sy-vline,
  WA_IGHONOLIFECYCSTS-NETWORKOBJECTSTATUSCODE, sy-vline,
  WA_IGHONOLIFECYCSTS-REASONCATEGORY, sy-vline,
  WA_IGHONOLIFECYCSTS-REASONCODE, sy-vline,
  WA_IGHONOLIFECYCSTS-REASONCODEDESCRIPTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IGHONOLIFECYCSTS 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_IGHONOLIFECYCSTS 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_IGHONOLIFECYCSTS INTO WA_IGHONOLIFECYCSTS.


*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 TPLNR, internal->external for field PRODUCTIONNETWORKID
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_IGHONOLIFECYCSTS-PRODUCTIONNETWORKID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IGHONOLIFECYCSTS-PRODUCTIONNETWORKID.
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_IGHONOLIFECYCSTS_STR, 
MANDT TYPE STRING,
PRODUCTIONNETWORKID TYPE STRING,
VALIDFROMDATETIME TYPE STRING,
VALIDFROMTIMEZONE TYPE STRING,
VALIDTODATETIME TYPE STRING,
VALIDTOTIMEZONE TYPE STRING,
USERENTEREDTIMEZONE TYPE STRING,
NETWORKOBJECTSTATUSCODE TYPE STRING,
REASONCATEGORY TYPE STRING,
REASONCODE TYPE STRING,
REASONCODEDESCRIPTION TYPE STRING,
LIFECYCLESTATUSISDERIVED TYPE STRING,
LIFECYCLESTSVALIDFROMDATE TYPE STRING,
LIFECYCLESTSVALIDTODATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IGHONOLIFECYCSTS_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_IGHONOLIFECYCSTS_STR-MANDT sy-vline 
WA_IGHONOLIFECYCSTS_STR-PRODUCTIONNETWORKID sy-vline 
WA_IGHONOLIFECYCSTS_STR-VALIDFROMDATETIME sy-vline 
WA_IGHONOLIFECYCSTS_STR-VALIDFROMTIMEZONE sy-vline 
WA_IGHONOLIFECYCSTS_STR-VALIDTODATETIME sy-vline 
WA_IGHONOLIFECYCSTS_STR-VALIDTOTIMEZONE sy-vline 
WA_IGHONOLIFECYCSTS_STR-USERENTEREDTIMEZONE sy-vline 
WA_IGHONOLIFECYCSTS_STR-NETWORKOBJECTSTATUSCODE sy-vline 
WA_IGHONOLIFECYCSTS_STR-REASONCATEGORY sy-vline 
WA_IGHONOLIFECYCSTS_STR-REASONCODE sy-vline 
WA_IGHONOLIFECYCSTS_STR-REASONCODEDESCRIPTION sy-vline 
WA_IGHONOLIFECYCSTS_STR-LIFECYCLESTATUSISDERIVED sy-vline 
WA_IGHONOLIFECYCSTS_STR-LIFECYCLESTSVALIDFROMDATE sy-vline 
WA_IGHONOLIFECYCSTS_STR-LIFECYCLESTSVALIDTODATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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