ABAP Select data from SAP table CAS_S_MAIL_INTERFACE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CAS_S_MAIL_INTERFACE
*  INTO TABLE @DATA(IT_CAS_S_MAIL_INTERFACE2).
*--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_CAS_S_MAIL_INTERFACE INDEX 1 INTO DATA(WA_CAS_S_MAIL_INTERFACE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CAS_S_MAIL_INTERFACE>-TVKO = 1.
<CAS_S_MAIL_INTERFACE>-MANDT = 1.
<CAS_S_MAIL_INTERFACE>-VKORG = 1.
<CAS_S_MAIL_INTERFACE>-WAERS = 1.
<CAS_S_MAIL_INTERFACE>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CAS_S_MAIL_INTERFACE-ADRNR, sy-vline,
  WA_CAS_S_MAIL_INTERFACE-TXNAM_ADR, sy-vline,
  WA_CAS_S_MAIL_INTERFACE-TXNAM_KOP, sy-vline,
  WA_CAS_S_MAIL_INTERFACE-TXNAM_FUS, sy-vline,
  WA_CAS_S_MAIL_INTERFACE-TXNAM_GRU, sy-vline,
  WA_CAS_S_MAIL_INTERFACE-VKOAU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CAS_S_MAIL_INTERFACE 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_CAS_S_MAIL_INTERFACE 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_CAS_S_MAIL_INTERFACE INTO WA_CAS_S_MAIL_INTERFACE.


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

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

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

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

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CAS_S_MAIL_INTERFACE-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAS_S_MAIL_INTERFACE-SPRAS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit SXIDN, internal->external for field EMAIL_ADDR
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_CAS_S_MAIL_INTERFACE-EMAIL_ADDR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAS_S_MAIL_INTERFACE-EMAIL_ADDR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field TDSPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CAS_S_MAIL_INTERFACE-TDSPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAS_S_MAIL_INTERFACE-TDSPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field TDOSPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CAS_S_MAIL_INTERFACE-TDOSPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAS_S_MAIL_INTERFACE-TDOSPRAS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field LFDTX
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CAS_S_MAIL_INTERFACE-LFDTX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAS_S_MAIL_INTERFACE-LFDTX.
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_CAS_S_MAIL_INTERFACE_STR, 
TVKO TYPE STRING,
MANDT TYPE STRING,
VKORG TYPE STRING,
WAERS TYPE STRING,
BUKRS TYPE STRING,
ADRNR TYPE STRING,
TXNAM_ADR TYPE STRING,
TXNAM_KOP TYPE STRING,
TXNAM_FUS TYPE STRING,
TXNAM_GRU TYPE STRING,
VKOAU TYPE STRING,
KUNNR TYPE STRING,
BOAVO TYPE STRING,
VKOKL TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
LIFNR TYPE STRING,
WERKS TYPE STRING,
BSART TYPE STRING,
BSTYP TYPE STRING,
BWART TYPE STRING,
LGORT TYPE STRING,
TXNAM_SDB TYPE STRING,
MWSKZ TYPE STRING,
XSTCEG TYPE STRING,
J_1ANUTIME TYPE STRING,
MAXBI TYPE STRING,
HIDE TYPE STRING,
CONTACT_ADDRESS TYPE STRING,
ADRNR TYPE STRING,
ANRED TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
NAME3 TYPE STRING,
NAME4 TYPE STRING,
STRAS TYPE STRING,
LAND1 TYPE STRING,
PSTLZ TYPE STRING,
PSTL2 TYPE STRING,
PFORT TYPE STRING,
ORT01 TYPE STRING,
ORT02 TYPE STRING,
REGIO TYPE STRING,
CITYC TYPE STRING,
COUNC TYPE STRING,
PFACH TYPE STRING,
TELF1 TYPE STRING,
TELF2 TYPE STRING,
TELBX TYPE STRING,
TELFX TYPE STRING,
TELTX TYPE STRING,
TELX1 TYPE STRING,
SPRAS TYPE STRING,
LZONE TYPE STRING,
HAUSN TYPE STRING,
PARGE TYPE STRING,
NAME_LIST TYPE STRING,
TXJCD TYPE STRING,
ADRNP TYPE STRING,
ADDRESS_TYPE TYPE STRING,
DUEFL TYPE STRING,
STOCK TYPE STRING,
STRS2 TYPE STRING,
STRASNA TYPE STRING,
EMAIL_ADDR TYPE STRING,
MOBNUM TYPE STRING,
ACTIVITY_TEXT TYPE STRING,
TDOBJECT TYPE STRING,
TDNAME TYPE STRING,
TDID TYPE STRING,
TDSPRAS TYPE STRING,
TDTITLE TYPE STRING,
TDFORM TYPE STRING,
TDSTYLE TYPE STRING,
TDVERSION TYPE STRING,
TDFUSER TYPE STRING,
TDFRELES TYPE STRING,
TDFDATE TYPE STRING,
TDFTIME TYPE STRING,
TDLUSER TYPE STRING,
TDLRELES TYPE STRING,
TDLDATE TYPE STRING,
TDLTIME TYPE STRING,
TDLINESIZE TYPE STRING,
TDTXTLINES TYPE STRING,
TDHYPHENAT TYPE STRING,
TDOSPRAS TYPE STRING,
TDTRANSTAT TYPE STRING,
TDMACODE1 TYPE STRING,
TDMACODE2 TYPE STRING,
TDREFOBJ TYPE STRING,
TDREFNAME TYPE STRING,
TDREFID TYPE STRING,
TDTEXTTYPE TYPE STRING,
TDCOMPRESS TYPE STRING,
MANDT TYPE STRING,
TDOCLASS TYPE STRING,
LOGSYS TYPE STRING,
TXPFL TYPE STRING,
TDTEXT TYPE STRING,
LFDTX TYPE STRING,
UPDKZ TYPE STRING,
SENDING_COUNTRY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CAS_S_MAIL_INTERFACE_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_CAS_S_MAIL_INTERFACE_STR-TVKO sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-MANDT sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-VKORG sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-WAERS sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-BUKRS sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-ADRNR sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TXNAM_ADR sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TXNAM_KOP sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TXNAM_FUS sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TXNAM_GRU sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-VKOAU sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-KUNNR sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-BOAVO sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-VKOKL sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-EKORG sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-EKGRP sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-LIFNR sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-WERKS sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-BSART sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-BSTYP sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-BWART sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-LGORT sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TXNAM_SDB sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-MWSKZ sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-XSTCEG sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-J_1ANUTIME sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-MAXBI sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-HIDE sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-CONTACT_ADDRESS sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-ADRNR sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-ANRED sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-NAME1 sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-NAME2 sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-NAME3 sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-NAME4 sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-STRAS sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-LAND1 sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-PSTLZ sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-PSTL2 sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-PFORT sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-ORT01 sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-ORT02 sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-REGIO sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-CITYC sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-COUNC sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-PFACH sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TELF1 sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TELF2 sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TELBX sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TELFX sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TELTX sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TELX1 sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-SPRAS sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-LZONE sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-HAUSN sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-PARGE sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-NAME_LIST sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TXJCD sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-ADRNP sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-ADDRESS_TYPE sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-DUEFL sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-STOCK sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-STRS2 sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-STRASNA sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-EMAIL_ADDR sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-MOBNUM sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-ACTIVITY_TEXT sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDOBJECT sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDNAME sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDID sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDSPRAS sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDTITLE sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDFORM sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDSTYLE sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDVERSION sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDFUSER sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDFRELES sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDFDATE sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDFTIME sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDLUSER sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDLRELES sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDLDATE sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDLTIME sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDLINESIZE sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDTXTLINES sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDHYPHENAT sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDOSPRAS sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDTRANSTAT sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDMACODE1 sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDMACODE2 sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDREFOBJ sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDREFNAME sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDREFID sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDTEXTTYPE sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDCOMPRESS sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-MANDT sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDOCLASS sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-LOGSYS sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TXPFL sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-TDTEXT sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-LFDTX sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-UPDKZ sy-vline 
WA_CAS_S_MAIL_INTERFACE_STR-SENDING_COUNTRY sy-vline      INTO ld_text SEPARATED BY SPACE.

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