ABAP Select data from SAP table ICHGRECD_DRAFTTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICHGRECD_DRAFTTP
*  INTO TABLE @DATA(IT_ICHGRECD_DRAFTTP2).
*--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_ICHGRECD_DRAFTTP INDEX 1 INTO DATA(WA_ICHGRECD_DRAFTTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICHGRECD_DRAFTTP>-MANDT = 1.
<ICHGRECD_DRAFTTP>-CHANGERECORDUUID = 1.
<ICHGRECD_DRAFTTP>-CHANGERECORD = 1.
<ICHGRECD_DRAFTTP>-CHANGERECORDTYPE = 1.
<ICHGRECD_DRAFTTP>-PARENTCHANGERECORDUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICHGRECD_DRAFTTP-ROOTCHANGERECORDUUID, sy-vline,
  WA_ICHGRECD_DRAFTTP-CHANGERECORDPRIORITY, sy-vline,
  WA_ICHGRECD_DRAFTTP-CHANGERECORDSTATUS, sy-vline,
  WA_ICHGRECD_DRAFTTP-ACCESSCONTROLCONTEXT, sy-vline,
  WA_ICHGRECD_DRAFTTP-LOGACCMSECUREIDOWNERID, sy-vline,
  WA_ICHGRECD_DRAFTTP-CHANGENUMBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICHGRECD_DRAFTTP 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_ICHGRECD_DRAFTTP 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_ICHGRECD_DRAFTTP INTO WA_ICHGRECD_DRAFTTP.


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

*Conversion exit ALPHA, internal->external for field CHANGERECORDPRIORITY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICHGRECD_DRAFTTP-CHANGERECORDPRIORITY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICHGRECD_DRAFTTP-CHANGERECORDPRIORITY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CHANGENUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICHGRECD_DRAFTTP-CHANGENUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICHGRECD_DRAFTTP-CHANGENUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICHGRECD_DRAFTTP-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICHGRECD_DRAFTTP-PARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CHGRECDINITIATEDSTATUSACTION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICHGRECD_DRAFTTP-CHGRECDINITIATEDSTATUSACTION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICHGRECD_DRAFTTP-CHGRECDINITIATEDSTATUSACTION.
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_ICHGRECD_DRAFTTP_STR, 
MANDT TYPE STRING,
CHANGERECORDUUID TYPE STRING,
CHANGERECORD TYPE STRING,
CHANGERECORDTYPE TYPE STRING,
PARENTCHANGERECORDUUID TYPE STRING,
ROOTCHANGERECORDUUID TYPE STRING,
CHANGERECORDPRIORITY TYPE STRING,
CHANGERECORDSTATUS TYPE STRING,
ACCESSCONTROLCONTEXT TYPE STRING,
LOGACCMSECUREIDOWNERID TYPE STRING,
CHANGENUMBER TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
PARTNER TYPE STRING,
CHANGERECORDLIFECYCLESTATUS TYPE STRING,
CHGRECDDIGITALSIGNATURESTATUS TYPE STRING,
CHGRECORDDESCRIPTIONTEXT TYPE STRING,
CHGRECDEXPECTEDCOMPLETIONDATE TYPE STRING,
CHANGERECORDDETAILDESCRIPTION TYPE STRING,
CHGRECDHDREXTNUUID TYPE STRING,
CHGRECDINITIATEDSTATUSACTION TYPE STRING,
CHGRECDENGEFFECTIVEDATE TYPE STRING,
CHGRECDMFGEFFECTIVEDATE TYPE STRING,
CHANGERECORDITEMISNOTEDITABLE TYPE STRING,
CHANGERECORDITMISADDDELENABLED TYPE STRING,
CHANGERECORDITEMEDITMODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICHGRECD_DRAFTTP_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_ICHGRECD_DRAFTTP_STR-MANDT sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CHANGERECORDUUID sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CHANGERECORD sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CHANGERECORDTYPE sy-vline 
WA_ICHGRECD_DRAFTTP_STR-PARENTCHANGERECORDUUID sy-vline 
WA_ICHGRECD_DRAFTTP_STR-ROOTCHANGERECORDUUID sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CHANGERECORDPRIORITY sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CHANGERECORDSTATUS sy-vline 
WA_ICHGRECD_DRAFTTP_STR-ACCESSCONTROLCONTEXT sy-vline 
WA_ICHGRECD_DRAFTTP_STR-LOGACCMSECUREIDOWNERID sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CHANGENUMBER sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CREATEDBYUSER sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CREATIONDATETIME sy-vline 
WA_ICHGRECD_DRAFTTP_STR-LASTCHANGEDBYUSER sy-vline 
WA_ICHGRECD_DRAFTTP_STR-LASTCHANGEDATETIME sy-vline 
WA_ICHGRECD_DRAFTTP_STR-PARTNER sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CHANGERECORDLIFECYCLESTATUS sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CHGRECDDIGITALSIGNATURESTATUS sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CHGRECORDDESCRIPTIONTEXT sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CHGRECDEXPECTEDCOMPLETIONDATE sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CHANGERECORDDETAILDESCRIPTION sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CHGRECDHDREXTNUUID sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CHGRECDINITIATEDSTATUSACTION sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CHGRECDENGEFFECTIVEDATE sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CHGRECDMFGEFFECTIVEDATE sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CHANGERECORDITEMISNOTEDITABLE sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CHANGERECORDITMISADDDELENABLED sy-vline 
WA_ICHGRECD_DRAFTTP_STR-CHANGERECORDITEMEDITMODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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