ABAP Select data from SAP table ITRMCORRESPNC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITRMCORRESPNC
*  INTO TABLE @DATA(IT_ITRMCORRESPNC2).
*--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_ITRMCORRESPNC INDEX 1 INTO DATA(WA_ITRMCORRESPNC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITRMCORRESPNC>-MANDT = 1.
<ITRMCORRESPNC>-TREASURYCORRESPNCOBJECTUUID = 1.
<ITRMCORRESPNC>-COMPANYCODE = 1.
<ITRMCORRESPNC>-FINANCIALTRANSACTION = 1.
<ITRMCORRESPNC>-CORRESPONDENCERECIPIENTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITRMCORRESPNC-CORRESPONDENCERECIPIENT, sy-vline,
  WA_ITRMCORRESPNC-CORRESPONDENCECHANNEL, sy-vline,
  WA_ITRMCORRESPNC-CORRESPNCMESSAGEFILEFORMAT, sy-vline,
  WA_ITRMCORRESPNC-CORRESPONDENCEOBJECT, sy-vline,
  WA_ITRMCORRESPNC-BUSINESSPARTNER, sy-vline,
  WA_ITRMCORRESPNC-TREASURYCORRESPONDENCEPROFILE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITRMCORRESPNC 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_ITRMCORRESPNC 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_ITRMCORRESPNC INTO WA_ITRMCORRESPNC.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field FINANCIALINSTRUMENTGUARANTOR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ITRMCORRESPNC-FINANCIALINSTRUMENTGUARANTOR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITRMCORRESPNC-FINANCIALINSTRUMENTGUARANTOR.
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_ITRMCORRESPNC_STR, 
MANDT TYPE STRING,
TREASURYCORRESPNCOBJECTUUID TYPE STRING,
COMPANYCODE TYPE STRING,
FINANCIALTRANSACTION TYPE STRING,
CORRESPONDENCERECIPIENTTYPE TYPE STRING,
CORRESPONDENCERECIPIENT TYPE STRING,
CORRESPONDENCECHANNEL TYPE STRING,
CORRESPNCMESSAGEFILEFORMAT TYPE STRING,
CORRESPONDENCEOBJECT TYPE STRING,
BUSINESSPARTNER TYPE STRING,
TREASURYCORRESPONDENCEPROFILE TYPE STRING,
TREASURYCORRESPONDENCECLASS TYPE STRING,
TREASURYCORRESPONDENCEBPGROUP TYPE STRING,
COUNTRY TYPE STRING,
LANGUAGE TYPE STRING,
FINANCIALINSTRUMENTACTIVITY TYPE STRING,
FINANCIALINSTRACTIVITYCATEGORY TYPE STRING,
TREASURYCORRESPNCOPERATION TYPE STRING,
TREASURYCORRESPNCOPNAME TYPE STRING,
TREASURYCONTRACTTYPE TYPE STRING,
FINANCIALINSTRPRODUCTCATEGORY TYPE STRING,
FINANCIALINSTRUMENTPRODUCTTYPE TYPE STRING,
FINANCIALINSTRPRODTYPENAME TYPE STRING,
FININSTRTRANSACTIONCATEGORY TYPE STRING,
FINANCIALINSTRTRANSACTIONTYPE TYPE STRING,
FINANCIALINSTRTRANSTYPENAME TYPE STRING,
PORTFOLIO TYPE STRING,
FINANCIALINSTRVALUATIONCLASS TYPE STRING,
FINANCIALINSTRUMENTREFERENCE TYPE STRING,
FINANCIALINSTRUMENTASSIGNMENT TYPE STRING,
TRADER TYPE STRING,
FINANCIALINSTRCONTACTPERSON TYPE STRING,
FINANCIALINSTRUMENTGUARANTOR TYPE STRING,
FININSTREXTERNALREFERENCE TYPE STRING,
CORRESPONDENCEDELIVERYDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITRMCORRESPNC_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_ITRMCORRESPNC_STR-MANDT sy-vline 
WA_ITRMCORRESPNC_STR-TREASURYCORRESPNCOBJECTUUID sy-vline 
WA_ITRMCORRESPNC_STR-COMPANYCODE sy-vline 
WA_ITRMCORRESPNC_STR-FINANCIALTRANSACTION sy-vline 
WA_ITRMCORRESPNC_STR-CORRESPONDENCERECIPIENTTYPE sy-vline 
WA_ITRMCORRESPNC_STR-CORRESPONDENCERECIPIENT sy-vline 
WA_ITRMCORRESPNC_STR-CORRESPONDENCECHANNEL sy-vline 
WA_ITRMCORRESPNC_STR-CORRESPNCMESSAGEFILEFORMAT sy-vline 
WA_ITRMCORRESPNC_STR-CORRESPONDENCEOBJECT sy-vline 
WA_ITRMCORRESPNC_STR-BUSINESSPARTNER sy-vline 
WA_ITRMCORRESPNC_STR-TREASURYCORRESPONDENCEPROFILE sy-vline 
WA_ITRMCORRESPNC_STR-TREASURYCORRESPONDENCECLASS sy-vline 
WA_ITRMCORRESPNC_STR-TREASURYCORRESPONDENCEBPGROUP sy-vline 
WA_ITRMCORRESPNC_STR-COUNTRY sy-vline 
WA_ITRMCORRESPNC_STR-LANGUAGE sy-vline 
WA_ITRMCORRESPNC_STR-FINANCIALINSTRUMENTACTIVITY sy-vline 
WA_ITRMCORRESPNC_STR-FINANCIALINSTRACTIVITYCATEGORY sy-vline 
WA_ITRMCORRESPNC_STR-TREASURYCORRESPNCOPERATION sy-vline 
WA_ITRMCORRESPNC_STR-TREASURYCORRESPNCOPNAME sy-vline 
WA_ITRMCORRESPNC_STR-TREASURYCONTRACTTYPE sy-vline 
WA_ITRMCORRESPNC_STR-FINANCIALINSTRPRODUCTCATEGORY sy-vline 
WA_ITRMCORRESPNC_STR-FINANCIALINSTRUMENTPRODUCTTYPE sy-vline 
WA_ITRMCORRESPNC_STR-FINANCIALINSTRPRODTYPENAME sy-vline 
WA_ITRMCORRESPNC_STR-FININSTRTRANSACTIONCATEGORY sy-vline 
WA_ITRMCORRESPNC_STR-FINANCIALINSTRTRANSACTIONTYPE sy-vline 
WA_ITRMCORRESPNC_STR-FINANCIALINSTRTRANSTYPENAME sy-vline 
WA_ITRMCORRESPNC_STR-PORTFOLIO sy-vline 
WA_ITRMCORRESPNC_STR-FINANCIALINSTRVALUATIONCLASS sy-vline 
WA_ITRMCORRESPNC_STR-FINANCIALINSTRUMENTREFERENCE sy-vline 
WA_ITRMCORRESPNC_STR-FINANCIALINSTRUMENTASSIGNMENT sy-vline 
WA_ITRMCORRESPNC_STR-TRADER sy-vline 
WA_ITRMCORRESPNC_STR-FINANCIALINSTRCONTACTPERSON sy-vline 
WA_ITRMCORRESPNC_STR-FINANCIALINSTRUMENTGUARANTOR sy-vline 
WA_ITRMCORRESPNC_STR-FININSTREXTERNALREFERENCE sy-vline 
WA_ITRMCORRESPNC_STR-CORRESPONDENCEDELIVERYDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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