ABAP Select data from SAP table IDCMAILTMPL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDCMAILTMPL
*  INTO TABLE @DATA(IT_IDCMAILTMPL2).
*--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_IDCMAILTMPL INDEX 1 INTO DATA(WA_IDCMAILTMPL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDCMAILTMPL>-MANDT = 1.
<IDCMAILTMPL>-DISPUTECASEUUID = 1.
<IDCMAILTMPL>-CASEID = 1.
<IDCMAILTMPL>-CASEEXTERNALREFERENCE = 1.
<IDCMAILTMPL>-DISPUTECASECOORDINATOR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDCMAILTMPL-DSPUTCASECOORDINATORFULLNAME, sy-vline,
  WA_IDCMAILTMPL-DISPUTECASEROOTCAUSE, sy-vline,
  WA_IDCMAILTMPL-CASEROOTCAUSEDESCRIPTION, sy-vline,
  WA_IDCMAILTMPL-CASEPROCESSINGDEADLINEDATE, sy-vline,
  WA_IDCMAILTMPL-ORIGINALAMOUNT, sy-vline,
  WA_IDCMAILTMPL-DISPUTEDAMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDCMAILTMPL 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_IDCMAILTMPL 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_IDCMAILTMPL INTO WA_IDCMAILTMPL.


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

*Conversion exit ALPHA, internal->external for field CUSTOMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDCMAILTMPL-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCMAILTMPL-CUSTOMER.
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_IDCMAILTMPL_STR, 
MANDT TYPE STRING,
DISPUTECASEUUID TYPE STRING,
CASEID TYPE STRING,
CASEEXTERNALREFERENCE TYPE STRING,
DISPUTECASECOORDINATOR TYPE STRING,
DSPUTCASECOORDINATORFULLNAME TYPE STRING,
DISPUTECASEROOTCAUSE TYPE STRING,
CASEROOTCAUSEDESCRIPTION TYPE STRING,
CASEPROCESSINGDEADLINEDATE TYPE STRING,
ORIGINALAMOUNT TYPE STRING,
DISPUTEDAMOUNT TYPE STRING,
PAIDAMOUNT TYPE STRING,
CREDITEDAMOUNT TYPE STRING,
WRITEOFFAMOUNT TYPE STRING,
MANUALLYCLEAREDAMOUNT TYPE STRING,
DISPUTECASECURRENCY TYPE STRING,
CONTACTPERSONNAME TYPE STRING,
CONTACTPERSONEMAILADDRESS TYPE STRING,
CONTACTPERSONPHONENUMBER TYPE STRING,
CONTACTPERSONFAXNUMBER TYPE STRING,
CONTACTPERSONFAXCOUNTRY TYPE STRING,
CONTACTPERSON TYPE STRING,
CUSTOMER TYPE STRING,
CUSTOMERNAME TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
DISPUTECASEEXTERNALAPPLICATION TYPE STRING,
DISPUTECASEEXTAPPLNAME TYPE STRING,
CASETYPE TYPE STRING,
CASETYPENAME TYPE STRING,
CASEREASON TYPE STRING,
CASEREASONNAME TYPE STRING,
CASEESCALATIONREASON TYPE STRING,
CASEESCALATIONREASONNAME TYPE STRING,
CASECATEGORY TYPE STRING,
CASECATEGORYNAME TYPE STRING,
CASEPRIORITY TYPE STRING,
CASEPRIORITYNAME TYPE STRING,
CASESTATUS TYPE STRING,
CASESTATUSNAME TYPE STRING,
CASECREATEDBY TYPE STRING,
CREATEDBYUSERNAME TYPE STRING,
CASELASTCHANGEDBY TYPE STRING,
LASTCHANGEDBYUSERNAME TYPE STRING,
CASECLOSEDBY TYPE STRING,
DISPUTECASECLOSEDBYUSERNAME TYPE STRING,
CASEPROCESSOR TYPE STRING,
DISPUTECASEPROCESSORFULLNAME TYPE STRING,
CASERESPONSIBLE TYPE STRING,
DISPUTECASERESPONSIBLEFULLNAME TYPE STRING,
USERDEFINEDTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDCMAILTMPL_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_IDCMAILTMPL_STR-MANDT sy-vline 
WA_IDCMAILTMPL_STR-DISPUTECASEUUID sy-vline 
WA_IDCMAILTMPL_STR-CASEID sy-vline 
WA_IDCMAILTMPL_STR-CASEEXTERNALREFERENCE sy-vline 
WA_IDCMAILTMPL_STR-DISPUTECASECOORDINATOR sy-vline 
WA_IDCMAILTMPL_STR-DSPUTCASECOORDINATORFULLNAME sy-vline 
WA_IDCMAILTMPL_STR-DISPUTECASEROOTCAUSE sy-vline 
WA_IDCMAILTMPL_STR-CASEROOTCAUSEDESCRIPTION sy-vline 
WA_IDCMAILTMPL_STR-CASEPROCESSINGDEADLINEDATE sy-vline 
WA_IDCMAILTMPL_STR-ORIGINALAMOUNT sy-vline 
WA_IDCMAILTMPL_STR-DISPUTEDAMOUNT sy-vline 
WA_IDCMAILTMPL_STR-PAIDAMOUNT sy-vline 
WA_IDCMAILTMPL_STR-CREDITEDAMOUNT sy-vline 
WA_IDCMAILTMPL_STR-WRITEOFFAMOUNT sy-vline 
WA_IDCMAILTMPL_STR-MANUALLYCLEAREDAMOUNT sy-vline 
WA_IDCMAILTMPL_STR-DISPUTECASECURRENCY sy-vline 
WA_IDCMAILTMPL_STR-CONTACTPERSONNAME sy-vline 
WA_IDCMAILTMPL_STR-CONTACTPERSONEMAILADDRESS sy-vline 
WA_IDCMAILTMPL_STR-CONTACTPERSONPHONENUMBER sy-vline 
WA_IDCMAILTMPL_STR-CONTACTPERSONFAXNUMBER sy-vline 
WA_IDCMAILTMPL_STR-CONTACTPERSONFAXCOUNTRY sy-vline 
WA_IDCMAILTMPL_STR-CONTACTPERSON sy-vline 
WA_IDCMAILTMPL_STR-CUSTOMER sy-vline 
WA_IDCMAILTMPL_STR-CUSTOMERNAME sy-vline 
WA_IDCMAILTMPL_STR-COMPANYCODE sy-vline 
WA_IDCMAILTMPL_STR-COMPANYCODENAME sy-vline 
WA_IDCMAILTMPL_STR-DISPUTECASEEXTERNALAPPLICATION sy-vline 
WA_IDCMAILTMPL_STR-DISPUTECASEEXTAPPLNAME sy-vline 
WA_IDCMAILTMPL_STR-CASETYPE sy-vline 
WA_IDCMAILTMPL_STR-CASETYPENAME sy-vline 
WA_IDCMAILTMPL_STR-CASEREASON sy-vline 
WA_IDCMAILTMPL_STR-CASEREASONNAME sy-vline 
WA_IDCMAILTMPL_STR-CASEESCALATIONREASON sy-vline 
WA_IDCMAILTMPL_STR-CASEESCALATIONREASONNAME sy-vline 
WA_IDCMAILTMPL_STR-CASECATEGORY sy-vline 
WA_IDCMAILTMPL_STR-CASECATEGORYNAME sy-vline 
WA_IDCMAILTMPL_STR-CASEPRIORITY sy-vline 
WA_IDCMAILTMPL_STR-CASEPRIORITYNAME sy-vline 
WA_IDCMAILTMPL_STR-CASESTATUS sy-vline 
WA_IDCMAILTMPL_STR-CASESTATUSNAME sy-vline 
WA_IDCMAILTMPL_STR-CASECREATEDBY sy-vline 
WA_IDCMAILTMPL_STR-CREATEDBYUSERNAME sy-vline 
WA_IDCMAILTMPL_STR-CASELASTCHANGEDBY sy-vline 
WA_IDCMAILTMPL_STR-LASTCHANGEDBYUSERNAME sy-vline 
WA_IDCMAILTMPL_STR-CASECLOSEDBY sy-vline 
WA_IDCMAILTMPL_STR-DISPUTECASECLOSEDBYUSERNAME sy-vline 
WA_IDCMAILTMPL_STR-CASEPROCESSOR sy-vline 
WA_IDCMAILTMPL_STR-DISPUTECASEPROCESSORFULLNAME sy-vline 
WA_IDCMAILTMPL_STR-CASERESPONSIBLE sy-vline 
WA_IDCMAILTMPL_STR-DISPUTECASERESPONSIBLEFULLNAME sy-vline 
WA_IDCMAILTMPL_STR-USERDEFINEDTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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