Question

Given following Statment:

 String query = "Select * from T_spareParts where SparePartPK IN (? )"

In my BackBean (JSF 2) I first iterate through all cars in table and build a String of all the cars currently selected (by picking each cars ID as primary key) so the final String before being passed to SQL could look like:

String finalString = " '1','2','3','4'";

And then :

this.prepareStatement= this.connection.prepareStatement(query);
this.prepareStatement.setString(1,finalString);
this.prepareStatement.executeQuery();

Exception thrown is:

Error converting data type nvarchar to bigint.

Now my understanding is that exception is due to SparePartPK is type bigint and we’re passing a String .

But in SQL Server (2008) i can do :

 Select * from T_spareParts where SparePartPK IN ('1','2','3','4')"

which returns results as expected. Why am i getting the exception and how can i correct the issue? (also feel free to comment if this isn’t the best approach)

Update:

I’ve also tried to produce the finalString without single quotes which causes the same exception to be thrown :

String finalString = " 1,2,3,4";

Answer 1

Thanks for the suggestions. Though as an alternative I created a StoredProcedure where it takes one parameter and inside the StoredProcedure i run the above Query in question formulating the IN section using the passed parameter .

So all above code still applies, The parameter passed to the storeDProcedure is one String separated by , without the single quotes.

Might not be the optimum answer but works quit well 🙂 .