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POnhibernate criteria for selecting from different tables
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I have following table model: <img src="https://i.stack.imgur.com/KBmIx.png" alt="enter image description here"> I want following SQL command as nhibernate criteria: <blockquote> SELECT * FROM Units WHERE OID IN (SELECT OID FROM Orders WHERE PONumber <> 0 ORDER BY PONumber LIMIT 5) </blockquote> -> in other words: the last 5 orders EDIT: my mappings Unit.hbm.xml <pre><code><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 name="EmployeeRef" column="EID" cascade="all" />  <many-to-one name="OrderRef" column="OID" cascade="all" /> </class> </hibernate-mapping> </code></pre> Order.hbm.xml <pre><code><?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" />  <bag name="Units" cascade="all" lazy="true"> <key column="OID" /> <one-to-many class="Unit" /> </bag> </class> </hibernate-mapping> </code></pre> Employee.hbm.xml <pre><code><?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> </code></pre> EDIT2: Here my query command: <pre><code>var query = m_hibernateSession.QueryOver<Model.Order>(() => orderAlias) .JoinAlias(() => orderAlias.ID, () => unitAlias, JoinType.InnerJoin) .TransformUsing(Transformers.DistinctRootEntity) .OrderBy(x => x.PONumber).Desc.Take(5); </code></pre> Thx
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<c#><sql><sqlite><nhibernate>
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nhibernate criteria for selecting from different tables
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1. COWhat specific difficulties are you having with the Criteria API?
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 POnhibernate criteria for selecting from different tables
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 USDiego Mijelshon

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Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.