NHibernate查詢Sql查詢

Question

讓我解釋一下我的情景。 我有一個表HSPartList，它有partName，description，issueNo等。當進行搜索時，我有一個標准應該列出最新issueNo的所有部分。 即。 如果表數據如下：

|PartName| PartDesc| IssueNo|

TestPart1  TestPart1  1
TestPart1  TestPart1  2
TestPart2  TestPart2  1
TestPart2  TestPart2  2

在此示例中，當我搜索最新問題時，它應該僅返回

|PartName| PartDesc| IssueNo|

TestPart1  TestPart1  2
TestPart2  TestPart2  2

我有sql查詢。 我需要將其轉換為nHibernate查詢。

SQL查詢是：

select * from HS_PartList HS where HS.IsLive = 1 and HS.PartName Like '%test%' and IssueNo=(select max(issueNo) from HS_PartList where HS_PartList.PartName=HS.PartName)

NHibernate版本是2.1.2.4000

Answer 1

var subquery = DetachedCriteria.For<Part>()
    .Add(Restrictions.EqProperty("Name", "part.Name"))  <-- part is the alias of the main query
    .SetProjection(Projections.Max("IssueNo"));

var results = session.CreateCriteria<Part>("part")
    .Add(Restrictions.Eq("IsLive", true))
    .Add(Restrictions.Like("Name", teststring, MatchMode.Anywhere))
    .Add(Subqueries.Eq("IssueNo", subquery))
    .List();

Answer 2

  Using Hql it Works fine 
string SearchTerm = "TestPart2";
string search = "and (partdetail.PartName like '%" + SearchTerm + "%') ";
var hql = string.Format(@"select partdetail  from HSPartList as partdetail  where  IssueNo =(select Max(IssueNo)  from HSPartList)") + search;
var context = _session.CreateQuery(hql).List<HSPartList>();