Re: Retrieval of a single row from read-only Table

The table is indexed by the MAC address and it is a read only table. So 
I have added Private Mib parameter that takes the Key value
    from the user as a set parameter. I am able to retrieve the details 
of all the parameters for that key value and storing it into a structure.
    I want to display these values but when I run the for loop for 
requests, the request has the parameter details of the private MIB.
    Is there anyway I display the single row for the SET request?

       Ex.
       Table X is read only table
       It is indexed by MAC address.
   
       Table Y = private Mib
       "y" is Table Y parameter that is settable
       "y" fetches the MAC address from the user and fetches the data 
for that MAC address through Get a single row and
        stores it in a "x" structure (this structure has all parameters 
of Table X).
      
       I want to display the Table X one row based on whatever I have 
stored in "y" structure.
      
    How to retrieve these in single row format??
      
      
     

Dave Shield wrote:
> 2009/11/10 [email protected] <[email protected]>:
>   
>>  But my requirement is I know the key values but I am not aware where
>> (as in which row ) it will appear.
>>   It is something like MAC address of the CPEs connected to my system.
>>     
>
> Retrieving information from a MIB table is critically dependent on the
> design of that table.   And in particular, the indexing of that table.
>
> If you need to be able to retrieve information for a particular MAC address,
> then you need a MIB table that is indexed by MAC address.   SNMP can
> only work with the indexes that have been defined.   It can't handle
> generating indexes for other columns on thefly.
>    (It's the "simple" network management protocol, remember!)
>
> If you need anything else, then you'd have to walk the MAC address
> column, and look for the desired value.   Then you could extract the
> index value for that instance, and use a GET request to retrieve the
> rest of the row.   There's no real alternative.
>
>
> Now all of this could be wrapped within a library routine, so the details
> could be hidden from the end coder (e.g. see the AnyData::SNMP
> perl module, which makes SNMP queries look like SQL).
> But fundamentally, that's what would be needed.
>
> Dave
>
>   



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