ABAP Select data from SAP table IRELCHARINCLTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IRELCHARINCLTP
*  INTO TABLE @DATA(IT_IRELCHARINCLTP2).
*--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_IRELCHARINCLTP INDEX 1 INTO DATA(WA_IRELCHARINCLTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IRELCHARINCLTP>-MANDT = 1.
<IRELCHARINCLTP>-INTERNALCLASSNUMBER = 1.
<IRELCHARINCLTP>-CHARACTERISTICDESCRIPTION = 1.
<IRELCHARINCLTP>-CHARACTERISTICINTERNALID = 1.
<IRELCHARINCLTP>-ARCHIVINGOBJECT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IRELCHARINCLTP-CLASSKEYWORDPOSITIONNUMBER, sy-vline,
  WA_IRELCHARINCLTP-CHARCINTIDFOREDIT, sy-vline,
  WA_IRELCHARINCLTP-CHARACTERISTICVALUEDESCRIPTION, sy-vline,
  WA_IRELCHARINCLTP-CLKEYWRDPOSNMBRFOREDIT, sy-vline,
  WA_IRELCHARINCLTP-ARCHIVINGOBJECTFOREDIT, sy-vline,
  WA_IRELCHARINCLTP-INTERNALCLASSNUMBERFOREDIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IRELCHARINCLTP 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_IRELCHARINCLTP 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_IRELCHARINCLTP INTO WA_IRELCHARINCLTP.


*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 ATINN, internal->external for field CHARACTERISTICINTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_IRELCHARINCLTP-CHARACTERISTICINTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IRELCHARINCLTP-CHARACTERISTICINTERNALID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ATINN, internal->external for field CHARCINTIDFOREDIT
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_IRELCHARINCLTP-CHARCINTIDFOREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IRELCHARINCLTP-CHARCINTIDFOREDIT.
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_IRELCHARINCLTP_STR, 
MANDT TYPE STRING,
INTERNALCLASSNUMBER TYPE STRING,
CHARACTERISTICDESCRIPTION TYPE STRING,
CHARACTERISTICINTERNALID TYPE STRING,
ARCHIVINGOBJECT TYPE STRING,
CLASSKEYWORDPOSITIONNUMBER TYPE STRING,
CHARCINTIDFOREDIT TYPE STRING,
CHARACTERISTICVALUEDESCRIPTION TYPE STRING,
CLKEYWRDPOSNMBRFOREDIT TYPE STRING,
ARCHIVINGOBJECTFOREDIT TYPE STRING,
INTERNALCLASSNUMBERFOREDIT TYPE STRING,
DATABASETABLE TYPE STRING,
DATABASETABLEFIELDNAME TYPE STRING,
VALIDFROM TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
ORIGINALSTATUSTEXT TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IRELCHARINCLTP_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_IRELCHARINCLTP_STR-MANDT sy-vline 
WA_IRELCHARINCLTP_STR-INTERNALCLASSNUMBER sy-vline 
WA_IRELCHARINCLTP_STR-CHARACTERISTICDESCRIPTION sy-vline 
WA_IRELCHARINCLTP_STR-CHARACTERISTICINTERNALID sy-vline 
WA_IRELCHARINCLTP_STR-ARCHIVINGOBJECT sy-vline 
WA_IRELCHARINCLTP_STR-CLASSKEYWORDPOSITIONNUMBER sy-vline 
WA_IRELCHARINCLTP_STR-CHARCINTIDFOREDIT sy-vline 
WA_IRELCHARINCLTP_STR-CHARACTERISTICVALUEDESCRIPTION sy-vline 
WA_IRELCHARINCLTP_STR-CLKEYWRDPOSNMBRFOREDIT sy-vline 
WA_IRELCHARINCLTP_STR-ARCHIVINGOBJECTFOREDIT sy-vline 
WA_IRELCHARINCLTP_STR-INTERNALCLASSNUMBERFOREDIT sy-vline 
WA_IRELCHARINCLTP_STR-DATABASETABLE sy-vline 
WA_IRELCHARINCLTP_STR-DATABASETABLEFIELDNAME sy-vline 
WA_IRELCHARINCLTP_STR-VALIDFROM sy-vline 
WA_IRELCHARINCLTP_STR-CREATEDBYUSER sy-vline 
WA_IRELCHARINCLTP_STR-LASTCHANGEDBYUSER sy-vline 
WA_IRELCHARINCLTP_STR-ORIGINALSTATUSTEXT sy-vline 
WA_IRELCHARINCLTP_STR-AUTHORIZATIONGROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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