我想查询使用SQL的Windows搜索4.0。感兴趣的物业 是:System.Search.QueryFocusedSummary
。Windows搜索SQL - 无法访问System.Search.QueryFocusedSummary
我试图从SystemIndex中读取此属性。我得到一个“列不存在”的错误信息。我可以阅读其他栏目,如:System.Search.AutoSummary
。
我在Windows 7操作系统和Windows Search 4.0上使用Microsoft Windows Search 3.x SDK下载 (Windows.Search.Interop.dll)。
我的查询是:
SELECT TOP 25 System.QueryFocusedSummary From SystemIndex where CONTAINS('microsoft') ORDER BY System.ItemDate DESC
我怎样才能得到查询与System.Search.QueryFocusedSummary
工作?
的代码如下:
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Data.OleDb;
using System.IO;
using System.Security.Permissions;
using System.Text;
using Microsoft.Search.Interop;
namespace QueryFocusedSummaryTest
{
class Program
[Stathread]
static void Main(string[] args)
{
string sqlQuery = "select top 25 System.Search.QueryFocusedSummary from SystemIndex where contains('microsoft') order by System.ItemDate DESC";
CSearchManager manager = new CSearchManager();
ISearchCtalogManager catalogMaager = manager.GetCatalog("SystemIndex");
ISearchQueryHelper queryHelper = catalogManager.GetQueryHelper();
using (System.Data.OleDb.OleDbConnection conn = new OleDbConnection(queryHelper.ConnectionString))
{
conn.Open();
using (OleDbCommand command = new OleDbCommand(sqlQuery, conn))
{
OleDbDataAdapter ds = new OleDbDataAdapter(command);
DataSet ds = new DataSet();
ds.Fill(ds);
command.ExecuteNonQuery();
//By now it has thrown the exception saying that the column is not found.
}
}
}
}
我有同样的问题,你找到一个解决方案? – Rocklan 2012-01-10 06:06:47