Question

I have an IList<string> named codes storing the code values for which I want to perform a query to retrieve entities from the database.

I have to retrieve all entities for which the code meets the SQL WHERE conditions:

Code = 'someCode' OR Code LIKE 'someCode/%'

where ‘someCode’ is successively each code in the IList<string> codes.

Example condition:

Code = 'someCode0' OR Code LIKE 'someCode0/%'
OR Code = 'someCode1' OR Code LIKE 'someCode1/%'
OR Code = 'someCode2' OR Code LIKE 'someCode2/%'
.
.
.
OR Code = 'someCodeN' OR Code LIKE 'someCodeN/%'

Where N is codes.Count – 1.

I tried using CreateSQLQuery and generated the above string but I got an exception which came from a bug which was fixed in a later version (using NHibernate 1.2.1.4000).

Thanks for answers!

Answer 1

Using HQL you can use something like this:

IQuery q = s.CreateQuery("from Person as p where p.Code in (:code)");
q.SetParameterList("code", someCodes); 

Where someCodes is your IList<String>;

Here are some other good HQL examples to guide you.