How to use SQL functions with parameters?

[Francesco Martinelli <ma...@pi.ingv.it>]

Dear all,
I need to filter a query using an SQL function.

In SQL this would be achieved with the following statement:
    select * from myTable where key in (select * from myFunc(myParam))

I tried the same with ODB-ODBC, and this worked using the following query
string:
    String oqlQuery = "select myObject from " + myClass.getName() +
        " where key IN (select * from myFunc(" + myParam.toString() + "))";

However it generated an error at the moment of binding the parameter using
the following query string:
    String oqlQuery = "select myObject from " + myClass.getName() +
        " where key IN (select * from myFunc($1))";

After creating the qury with:
      query.create(oqlQuery);

The error (QueryParameterCountInvalidException) was generated at the
following line:
      query.bind((Float)myParam);

Can anybody tell me if it is possible to use the query string in the
second form?

Thank you,
Francesco.



---------------------------------------------------------------------
To unsubscribe, e-mail: ojb-user-unsubscribe@db.apache.org
For additional commands, e-mail: ojb-user-help@db.apache.org

Re: How to use SQL functions with parameters?

[Armin Waibel <ar...@apache.org>]

Hi Francesco,

the oql-support isn't fully implemented.
http://db.apache.org/ojb/status.html

Maybe it's possible to do a workaround by using the Criteria-API
http://db.apache.org/ojb/docu/guides/odmg-guide.html#no-oql
http://db.apache.org/ojb/docu/guides/query.html#subqueries

regards,
Armin


Francesco Martinelli wrote:
> Dear all,
> I need to filter a query using an SQL function.
> 
> In SQL this would be achieved with the following statement:
>     select * from myTable where key in (select * from myFunc(myParam))
> 
> I tried the same with ODB-ODBC, and this worked using the following query
> string:
>     String oqlQuery = "select myObject from " + myClass.getName() +
>         " where key IN (select * from myFunc(" + myParam.toString() + "))";
> 
> However it generated an error at the moment of binding the parameter using
> the following query string:
>     String oqlQuery = "select myObject from " + myClass.getName() +
>         " where key IN (select * from myFunc($1))";
> 
> After creating the qury with:
>       query.create(oqlQuery);
> 
> The error (QueryParameterCountInvalidException) was generated at the
> following line:
>       query.bind((Float)myParam);
> 
> Can anybody tell me if it is possible to use the query string in the
> second form?
> 
> Thank you,
> Francesco.
> 
> 
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: ojb-user-unsubscribe@db.apache.org
> For additional commands, e-mail: ojb-user-help@db.apache.org
> 
> 

---------------------------------------------------------------------
To unsubscribe, e-mail: ojb-user-unsubscribe@db.apache.org
For additional commands, e-mail: ojb-user-help@db.apache.org