You bring up a good point - this doesn't make any sense. Thanks. On Aug 16, 12:19 pm, Diego Mijelshon <[email protected]> wrote: > So... a nullable field is part of your key?? > > Diego > > > > > > > > On Mon, Aug 16, 2010 at 12:20, Mujahid Ali <[email protected]> wrote: > > This sql is generated when doing a Session Load or Session.Update; I > > have simplified the generated query so that we can focus on the where > > clause; > > > Here is the mapping for the class: > > > <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="XXXX" > > namespace="XXXX"> > > <class name="CurrencyMapping" table="CURRENCY_TBL"> > > <cache usage="read-write" region="default_write"/> > > <composite-id> > > <key-property name="FromCurrencyCode" column="FROM_CUR" /> > > <key-property name="ToCurrencyCode" column="TO_CUR" /> > > <key-property name="EffectiveDate" column="EFFDT" > > type="timestamp"/> > > </composite-id> > > <property name="Status" column="EFF_STATUS"/> > > </class> > > </hibernate-mapping> > > > -Mujahid > > > On Aug 16, 10:45 am, Diego Mijelshon <[email protected]> wrote: > > > How are you doing the query? HQL, Criteria...? > > > > Diego > > > > On Mon, Aug 16, 2010 at 10:28, Mujahid Ali <[email protected]> > > wrote: > > > > I am using nHibernate 2.1.2 with SQL Server 2008. > > > > > ANSI_NULLS setting is turned on. I have a table with a 3 part > > > > composite key. If a part of this key is null, nHibernate does the null > > > > check using "=" instead of "IS NULL". > > > > > As an example: > > > > > SELECT * from CURRENCY_TBL WHERE FROM_CUR = 'USD' AND TO_CUR = > > > > 'EUR' AND EFFDT = NULL > > > > > which doesn't return any results where EFFDT is null; > > > > > Instead, this query correctly returns results: > > > > > SELECT * from CURRENCY_TBL WHERE FROM_CUR = 'USD' AND TO_CUR = > > > > 'EUR' AND EFFDT IS NULL > > > > > So, knowing that ANSI_NULLS is turned ON, how can I configure > > > > nHibernate to generate the null check using "IS NULL" vs " = NULL" ? > > > > > Thanks, > > > > Mujahid > > > > > -- > > > > You received this message because you are subscribed to the Google > > Groups > > > > "nhusers" group. > > > > To post to this group, send email to [email protected]. > > > > To unsubscribe from this group, send email to > > > > [email protected]<nhusers%[email protected] > > > > > > > <nhusers%[email protected]<nhusers%252bunsubscr...@googlegroup > > s.com>> > > > > . > > > > For more options, visit this group at > > > >http://groups.google.com/group/nhusers?hl=en. > > > -- > > You received this message because you are subscribed to the Google Groups > > "nhusers" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]<nhusers%[email protected] > > > > > . > > For more options, visit this group at > >http://groups.google.com/group/nhusers?hl=en.
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