Sql server 2008 如何在NHibernate中使用VarArgsSQLFunction按SqlFunction分组
我正在尝试使用QueryOver实现以下SQL查询:Sql server 2008 如何在NHibernate中使用VarArgsSQLFunction按SqlFunction分组,sql-server-2008,nhibernate,Sql Server 2008,Nhibernate,我正在尝试使用QueryOver实现以下SQL查询: SELECT [Time]/1000 FROM TableName GROUP BY [Time]/1000 以下是我目前的尝试: var result = session .QueryOver<TableName> .Select(Projections.GroupProperty( Projections.SqlFunction( new VarArgsSQLFunct
SELECT [Time]/1000
FROM TableName
GROUP BY [Time]/1000
以下是我目前的尝试:
var result = session
.QueryOver<TableName>
.Select(Projections.GroupProperty(
Projections.SqlFunction(
new VarArgsSQLFunction("(", "/", ")"),
NHibernateUtil.Int64,
Projections.Property("Time")
Projections.Constant(1000))
))
.List<object>();
内部的例外是:
Incorrect syntax near ?.
我可以将“GroupProperty”替换为“Sum”,这样就行了。知道少了什么吗
更新:
显然这是NHibernate的一个bug。另请参见。为什么不直接使用Projections.SqlGroupProjection:
var result = session
.QueryOver<TableName>
.Select(Projections.SqlGroupProjection(
Time/1000 AS TimeValue",
"Time/1000",
new[]{"TimeValue"},
new[]{NHibernateUtil.Int32}))
.List<object>();
var结果=会话
QueryOver先生
.选择(Projections.SqlGroupProjection(
时间/1000作为时间值“,
“时间/1000”,
新[]{“时间值”},
新[]{NHibernateUtil.Int32})
.List();
var result = session
.QueryOver<TableName>
.Select(Projections.SqlGroupProjection(
Time/1000 AS TimeValue",
"Time/1000",
new[]{"TimeValue"},
new[]{NHibernateUtil.Int32}))
.List<object>();