ABAP Select data from SAP table ICHGRECDBSC 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 ICHGRECDBSC 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 ICHGRECDBSC. 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 ICHGRECDBSC 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_ICHGRECDBSC TYPE STANDARD TABLE OF ICHGRECDBSC,
      WA_ICHGRECDBSC TYPE ICHGRECDBSC,
      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: <ICHGRECDBSC> TYPE ICHGRECDBSC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICHGRECDBSC
*  INTO TABLE @DATA(IT_ICHGRECDBSC2).
*--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_ICHGRECDBSC INDEX 1 INTO DATA(WA_ICHGRECDBSC2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICHGRECDBSC-ROOTCHANGERECORDUUID, sy-vline,
  WA_ICHGRECDBSC-CHANGERECORDPRIORITY, sy-vline,
  WA_ICHGRECDBSC-CHANGERECORDSTATUS, sy-vline,
  WA_ICHGRECDBSC-CHANGENUMBER, sy-vline,
  WA_ICHGRECDBSC-CHANGERECORDCATEGORY, sy-vline,
  WA_ICHGRECDBSC-CHGRECORDAPPLICATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICHGRECDBSC 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_ICHGRECDBSC 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_ICHGRECDBSC INTO WA_ICHGRECDBSC.


*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_ICHGRECDBSC-CHANGERECORD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICHGRECDBSC-CHANGERECORD.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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