私は次のテーブルモデルを持っています:
nhibernate 基準として次の SQL コマンドが必要です。
SELECT * FROM Units WHERE OID IN (SELECT OID FROM Orders WHERE PONumber <> 0 ORDER BY PONumber LIMIT 5)
-> 言い換えれば: 最後の 5 つの注文
編集:
私のマッピング
Unit.hbm.xml
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
assembly="DCGOrderSystem"
namespace="DCGOrderSystem.Model">
<class name="Unit" table="Units">
<id name="ID">
<column name="UID" />
<generator class="native" />
</id>
<property name="Division" />
<property name="Date" />
<property name="ItemOrderNr" />
<property name="Description" />
<property name="Amount" />
<property name="Price" />
<property name="CostCenter" />
<property name="Location" />
<property name="DeviceGroup" />
<property name="Comment" />
<property name="Distributor" />
<!-- Many-to-one mapping: Employee -->
<many-to-one name="EmployeeRef" column="EID" cascade="all" />
<!-- Many-to-one mapping: Order -->
<many-to-one name="OrderRef" column="OID" cascade="all" />
</class>
</hibernate-mapping>
Order.hbm.xml
<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
assembly="DCGOrderSystem"
namespace="DCGOrderSystem.Model">
<class name="Order" table="Orders">
<id name="ID">
<column name="OID" />
<generator class="native" />
</id>
<property name="Locked" />
<property name="PONumber" />
<!-- One-to-many mapping: Units -->
<bag name="Units" cascade="all" lazy="true">
<key column="OID" />
<one-to-many class="Unit" />
</bag>
</class>
</hibernate-mapping>
従業員.hbm.xml
<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
assembly="DCGOrderSystem"
namespace="DCGOrderSystem.Model">
<class name="Employee" table="Employees">
<id name="ID">
<column name="EID" />
<generator class="native" />
</id>
<property name="Name" />
</class>
</hibernate-mapping>
EDIT2:
ここで私のクエリコマンド:
var query = m_hibernateSession.QueryOver<Model.Order>(() => orderAlias)
.JoinAlias(() => orderAlias.ID, () => unitAlias, JoinType.InnerJoin)
.TransformUsing(Transformers.DistinctRootEntity)
.OrderBy(x => x.PONumber).Desc.Take(5);
どうも