ABAP Select data from SAP table ILCD into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ILCD 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 ILCD. 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 ILCD 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_ILCD TYPE STANDARD TABLE OF ILCD,
      WA_ILCD TYPE ILCD,
      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: <ILCD> TYPE ILCD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ILCD
*  INTO TABLE @DATA(IT_ILCD2).
*--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_ILCD INDEX 1 INTO DATA(WA_ILCD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ILCD>-MANDT = 1.
<ILCD>-COMPANYCODE = 1.
<ILCD>-LOANARCHIVINGCATEGORY = 1.
<ILCD>-LOANCONTRACTID = 1.
<ILCD>-LOANCONTRACTENTEREDBY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ILCD-LOANCONTRACTENTEREDDATE, sy-vline,
  WA_ILCD-LOANCONTRACTENTEREDTIME, sy-vline,
  WA_ILCD-LOANCONTRACTENTEREDSOURCE, sy-vline,
  WA_ILCD-LOANCONTRACTEDITEDBY, sy-vline,
  WA_ILCD-LOANCONTRACTEDITEDDATE, sy-vline,
  WA_ILCD-LOANCONTRACTEDITEDTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ILCD 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_ILCD 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_ILCD INTO WA_ILCD.


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

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

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

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

*Conversion exit ALPHA, internal->external for field LOANMASTERNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ILCD-LOANMASTERNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ILCD-LOANMASTERNUMBER.
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_ILCD_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
LOANARCHIVINGCATEGORY TYPE STRING,
LOANCONTRACTID TYPE STRING,
LOANCONTRACTENTEREDBY TYPE STRING,
LOANCONTRACTENTEREDDATE TYPE STRING,
LOANCONTRACTENTEREDTIME TYPE STRING,
LOANCONTRACTENTEREDSOURCE TYPE STRING,
LOANCONTRACTEDITEDBY TYPE STRING,
LOANCONTRACTEDITEDDATE TYPE STRING,
LOANCONTRACTEDITEDTIME TYPE STRING,
LOANCONTRACTEDITEDSOURCE TYPE STRING,
LOANOBJECTINTERNALKEY TYPE STRING,
LOANLIFECYCLESTATUS TYPE STRING,
LOANPRODUCTCATEGORY TYPE STRING,
LOANPRODUCTTYPE TYPE STRING,
LOANACCTASSGMTREF TYPE STRING,
HOUSEBANK TYPE STRING,
HOUSEBANKACCOUNT TYPE STRING,
LOANTYPE TYPE STRING,
STATECNTRLBKASTGRP TYPE STRING,
FINACCTGASTGRP TYPE STRING,
BALANCESHEETCODE TYPE STRING,
LOANFILENUMBER TYPE STRING,
LOANALTERNATIVEID1 TYPE STRING,
LOANALTERNATIVEID2 TYPE STRING,
LOANGROUPKEY1 TYPE STRING,
LOANGROUPKEY2 TYPE STRING,
LOANCLASSFCTNNMBR TYPE STRING,
PRNCPLOANINVMTNMBR TYPE STRING,
LOANAPPLICATIONNUMBER TYPE STRING,
LOANINTRSTCALCCPTLMETH TYPE STRING,
LOANTERM TYPE STRING,
LOANCAPITALAPPLIEDAMOUNT TYPE STRING,
LOANCONTRACTCURRENCY TYPE STRING,
LOANAPPLICATIONENTRYDATE TYPE STRING,
LOANCOMMITTEDCAPITALAMOUNT TYPE STRING,
LOANCOMMITMENTDATE TYPE STRING,
LOANTERMSTARTDATE TYPE STRING,
LOANTERMENDDATE TYPE STRING,
LOANPURPOSE TYPE STRING,
LOANSPECIALTREATMENT TYPE STRING,
LOANCOUNTRYID TYPE STRING,
LOANNONACCPTCRSN TYPE STRING,
LOANWITHDRAWALDATE TYPE STRING,
LOANCLASS TYPE STRING,
LOANAPPROVALDATE TYPE STRING,
LOANASSIGNMENTCREDITOR TYPE STRING,
DUNNINGAREA TYPE STRING,
DUNNINGLEVEL TYPE STRING,
LASTDUNNINGDATE TYPE STRING,
LOANSPECIALPOSTINGTYPE TYPE STRING,
LOANGROUPKEY3 TYPE STRING,
LOANGROUPKEY4 TYPE STRING,
LOANINCGPAYTDISTRCTRL TYPE STRING,
LOANAUTHORIZATIONGROUP TYPE STRING,
LOANDRWGRESTRAINTTYPE TYPE STRING,
LOANSECURITYTYPE TYPE STRING,
LOANPORTFOLIOTYPE TYPE STRING,
LOANSALESREGION TYPE STRING,
LOANBRANCHOFFICE TYPE STRING,
LOANPROCESSINGCONTROL TYPE STRING,
LOANORGANIZATIONALDISTRICT TYPE STRING,
LOANAGENTDISTRICT TYPE STRING,
LOANMANUALDUNLEVEL TYPE STRING,
LOANREDEEMDATE TYPE STRING,
LOANDISCOUNTMETHOD TYPE STRING,
LOANFIXEDCONTRACTCONTROL TYPE STRING,
BUSINESSPARTNER TYPE STRING,
FINTRANSOBJNMBR TYPE STRING,
LOANMAINBRWRCUSTNMBR TYPE STRING,
LOANMASTERNUMBER TYPE STRING,
LOANDUNSMMRZN TYPE STRING,
LOANDUNRUNISEXCLUDE TYPE STRING,
LOANINTERNALREFERENCE TYPE STRING,
LOANCHARACTERISTIC TYPE STRING,
LOANISPOSTDUNCHARGE TYPE STRING,
LOANISLIABILITYTRANSACTION TYPE STRING,
LOANBUSINESSAREA TYPE STRING,
LOANISPAYOFFLOCK TYPE STRING,
LOANISPOFFBLKOPNITMCLRG TYPE STRING,
LOANGENERALVALUATIONCLASS TYPE STRING,
LOANPAYMENTSTATUS TYPE STRING,
LOANCONCLUDEDREGION TYPE STRING,
LOANBACKOFFICE TYPE STRING,
LOANCONTRACTIBAN TYPE STRING,
LOANBUSPROCCHNASSGMTTYPE TYPE STRING,
LOANBUSPROCCHNASSGMTID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ILCD_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_ILCD_STR-MANDT sy-vline 
WA_ILCD_STR-COMPANYCODE sy-vline 
WA_ILCD_STR-LOANARCHIVINGCATEGORY sy-vline 
WA_ILCD_STR-LOANCONTRACTID sy-vline 
WA_ILCD_STR-LOANCONTRACTENTEREDBY sy-vline 
WA_ILCD_STR-LOANCONTRACTENTEREDDATE sy-vline 
WA_ILCD_STR-LOANCONTRACTENTEREDTIME sy-vline 
WA_ILCD_STR-LOANCONTRACTENTEREDSOURCE sy-vline 
WA_ILCD_STR-LOANCONTRACTEDITEDBY sy-vline 
WA_ILCD_STR-LOANCONTRACTEDITEDDATE sy-vline 
WA_ILCD_STR-LOANCONTRACTEDITEDTIME sy-vline 
WA_ILCD_STR-LOANCONTRACTEDITEDSOURCE sy-vline 
WA_ILCD_STR-LOANOBJECTINTERNALKEY sy-vline 
WA_ILCD_STR-LOANLIFECYCLESTATUS sy-vline 
WA_ILCD_STR-LOANPRODUCTCATEGORY sy-vline 
WA_ILCD_STR-LOANPRODUCTTYPE sy-vline 
WA_ILCD_STR-LOANACCTASSGMTREF sy-vline 
WA_ILCD_STR-HOUSEBANK sy-vline 
WA_ILCD_STR-HOUSEBANKACCOUNT sy-vline 
WA_ILCD_STR-LOANTYPE sy-vline 
WA_ILCD_STR-STATECNTRLBKASTGRP sy-vline 
WA_ILCD_STR-FINACCTGASTGRP sy-vline 
WA_ILCD_STR-BALANCESHEETCODE sy-vline 
WA_ILCD_STR-LOANFILENUMBER sy-vline 
WA_ILCD_STR-LOANALTERNATIVEID1 sy-vline 
WA_ILCD_STR-LOANALTERNATIVEID2 sy-vline 
WA_ILCD_STR-LOANGROUPKEY1 sy-vline 
WA_ILCD_STR-LOANGROUPKEY2 sy-vline 
WA_ILCD_STR-LOANCLASSFCTNNMBR sy-vline 
WA_ILCD_STR-PRNCPLOANINVMTNMBR sy-vline 
WA_ILCD_STR-LOANAPPLICATIONNUMBER sy-vline 
WA_ILCD_STR-LOANINTRSTCALCCPTLMETH sy-vline 
WA_ILCD_STR-LOANTERM sy-vline 
WA_ILCD_STR-LOANCAPITALAPPLIEDAMOUNT sy-vline 
WA_ILCD_STR-LOANCONTRACTCURRENCY sy-vline 
WA_ILCD_STR-LOANAPPLICATIONENTRYDATE sy-vline 
WA_ILCD_STR-LOANCOMMITTEDCAPITALAMOUNT sy-vline 
WA_ILCD_STR-LOANCOMMITMENTDATE sy-vline 
WA_ILCD_STR-LOANTERMSTARTDATE sy-vline 
WA_ILCD_STR-LOANTERMENDDATE sy-vline 
WA_ILCD_STR-LOANPURPOSE sy-vline 
WA_ILCD_STR-LOANSPECIALTREATMENT sy-vline 
WA_ILCD_STR-LOANCOUNTRYID sy-vline 
WA_ILCD_STR-LOANNONACCPTCRSN sy-vline 
WA_ILCD_STR-LOANWITHDRAWALDATE sy-vline 
WA_ILCD_STR-LOANCLASS sy-vline 
WA_ILCD_STR-LOANAPPROVALDATE sy-vline 
WA_ILCD_STR-LOANASSIGNMENTCREDITOR sy-vline 
WA_ILCD_STR-DUNNINGAREA sy-vline 
WA_ILCD_STR-DUNNINGLEVEL sy-vline 
WA_ILCD_STR-LASTDUNNINGDATE sy-vline 
WA_ILCD_STR-LOANSPECIALPOSTINGTYPE sy-vline 
WA_ILCD_STR-LOANGROUPKEY3 sy-vline 
WA_ILCD_STR-LOANGROUPKEY4 sy-vline 
WA_ILCD_STR-LOANINCGPAYTDISTRCTRL sy-vline 
WA_ILCD_STR-LOANAUTHORIZATIONGROUP sy-vline 
WA_ILCD_STR-LOANDRWGRESTRAINTTYPE sy-vline 
WA_ILCD_STR-LOANSECURITYTYPE sy-vline 
WA_ILCD_STR-LOANPORTFOLIOTYPE sy-vline 
WA_ILCD_STR-LOANSALESREGION sy-vline 
WA_ILCD_STR-LOANBRANCHOFFICE sy-vline 
WA_ILCD_STR-LOANPROCESSINGCONTROL sy-vline 
WA_ILCD_STR-LOANORGANIZATIONALDISTRICT sy-vline 
WA_ILCD_STR-LOANAGENTDISTRICT sy-vline 
WA_ILCD_STR-LOANMANUALDUNLEVEL sy-vline 
WA_ILCD_STR-LOANREDEEMDATE sy-vline 
WA_ILCD_STR-LOANDISCOUNTMETHOD sy-vline 
WA_ILCD_STR-LOANFIXEDCONTRACTCONTROL sy-vline 
WA_ILCD_STR-BUSINESSPARTNER sy-vline 
WA_ILCD_STR-FINTRANSOBJNMBR sy-vline 
WA_ILCD_STR-LOANMAINBRWRCUSTNMBR sy-vline 
WA_ILCD_STR-LOANMASTERNUMBER sy-vline 
WA_ILCD_STR-LOANDUNSMMRZN sy-vline 
WA_ILCD_STR-LOANDUNRUNISEXCLUDE sy-vline 
WA_ILCD_STR-LOANINTERNALREFERENCE sy-vline 
WA_ILCD_STR-LOANCHARACTERISTIC sy-vline 
WA_ILCD_STR-LOANISPOSTDUNCHARGE sy-vline 
WA_ILCD_STR-LOANISLIABILITYTRANSACTION sy-vline 
WA_ILCD_STR-LOANBUSINESSAREA sy-vline 
WA_ILCD_STR-LOANISPAYOFFLOCK sy-vline 
WA_ILCD_STR-LOANISPOFFBLKOPNITMCLRG sy-vline 
WA_ILCD_STR-LOANGENERALVALUATIONCLASS sy-vline 
WA_ILCD_STR-LOANPAYMENTSTATUS sy-vline 
WA_ILCD_STR-LOANCONCLUDEDREGION sy-vline 
WA_ILCD_STR-LOANBACKOFFICE sy-vline 
WA_ILCD_STR-LOANCONTRACTIBAN sy-vline 
WA_ILCD_STR-LOANBUSPROCCHNASSGMTTYPE sy-vline 
WA_ILCD_STR-LOANBUSPROCCHNASSGMTID sy-vline      INTO ld_text SEPARATED BY SPACE.

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