SELECT [t0].[a_id], [t0].[a_site], [t0].[a_model], [t0].[a_type], [t0].[a_special], [t0].[a_name], [t0].[a_from], [t0].[a_from_url], [t0].[a_author], [t0].[a_editor], [t0].[a_describe], [t0].[a_content], [t0].[a_create_date], [t0].[a_tag], [t0].[a_hits], [t0].[a_commend], [t0].[a_istop], [t0].[a_isimg], [t0].[a_cacheimg], [t0].[a_imgurls], [t0].[a_imgurl], [t0].[a_ismedia], [t0].[a_mediaurl], [t0].[a_iscomment], [t0].[a_isRecycle], [t0].[a_weight], [t0].[a_weights], [t0].[a_status], [t0].[a_url], [t0].[a_file_path], [t0].[a_contentfile], [t0].[a_comment], [t0].[a_ispass], [t0].[a_bury], [t0].[a_dig], [t0].[a_score], [t0].[a_rank], [t0].[a_diguser], [t0].[a_buryuser], [t0].[a_viewip], [t0].[a_lastviewdate], [t0].[a_neworimageorvideo], [t0].[class_id], [t0].[class_type], [t0].[class_name], [t0].[class_show_name], [t0].[class_parent_id], [t0].[class_id_path], [t0].[class_name_path], [t0].[class_show_name_path], [t0].[class_depth], [t0].[class_order], [t0].[class_content], [t0].[class_img], [t0].[a_model_name] FROM [dbo].[mvc_content_view] AS [t0] WHERE ([t0].[a_id] = @p0) AND ([t0].[a_type] = @p1) -- @p0: Input BigInt (Size = 0; Prec = 0; Scale = 0) [4276] -- @p1: Input BigInt (Size = 0; Prec = 0; Scale = 0) [236] -- Context: SqlProvider(Sql2008) Model: AttributedMetaModel Build: 3.5.30729.1 SELECT TOP (1) [t0].[a_id], [t0].[a_site], [t0].[a_model], [t0].[a_type], [t0].[a_special], [t0].[a_name], [t0].[a_from], [t0].[a_from_url], [t0].[a_author], [t0].[a_editor], [t0].[a_describe], [t0].[a_content], [t0].[a_create_date], [t0].[a_tag], [t0].[a_hits], [t0].[a_commend], [t0].[a_istop], [t0].[a_isimg], [t0].[a_cacheimg], [t0].[a_imgurls], [t0].[a_imgurl], [t0].[a_ismedia], [t0].[a_mediaurl], [t0].[a_iscomment], [t0].[a_isRecycle], [t0].[a_weight], [t0].[a_weights], [t0].[a_status], [t0].[a_url], [t0].[a_file_path], [t0].[a_contentfile], [t0].[a_comment], [t0].[a_ispass], [t0].[a_bury], [t0].[a_dig], [t0].[a_score], [t0].[a_rank], [t0].[a_diguser], [t0].[a_buryuser], [t0].[a_viewip], [t0].[a_lastviewdate], [t0].[a_neworimageorvideo], [t0].[class_id], [t0].[class_type], [t0].[class_name], [t0].[class_show_name], [t0].[class_parent_id], [t0].[class_id_path], [t0].[class_name_path], [t0].[class_show_name_path], [t0].[class_depth], [t0].[class_order], [t0].[class_content], [t0].[class_img], [t0].[a_model_name] FROM [dbo].[mvc_content_view] AS [t0] WHERE ([t0].[a_type] = @p0) AND ([t0].[a_id] < @p1) ORDER BY [t0].[a_id] DESC -- @p0: Input BigInt (Size = 0; Prec = 0; Scale = 0) [236] -- @p1: Input BigInt (Size = 0; Prec = 0; Scale = 0) [4276] -- Context: SqlProvider(Sql2008) Model: AttributedMetaModel Build: 3.5.30729.1 SELECT TOP (1) [t0].[a_id], [t0].[a_site], [t0].[a_model], [t0].[a_type], [t0].[a_special], [t0].[a_name], [t0].[a_from], [t0].[a_from_url], [t0].[a_author], [t0].[a_editor], [t0].[a_describe], [t0].[a_content], [t0].[a_create_date], [t0].[a_tag], [t0].[a_hits], [t0].[a_commend], [t0].[a_istop], [t0].[a_isimg], [t0].[a_cacheimg], [t0].[a_imgurls], [t0].[a_imgurl], [t0].[a_ismedia], [t0].[a_mediaurl], [t0].[a_iscomment], [t0].[a_isRecycle], [t0].[a_weight], [t0].[a_weights], [t0].[a_status], [t0].[a_url], [t0].[a_file_path], [t0].[a_contentfile], [t0].[a_comment], [t0].[a_ispass], [t0].[a_bury], [t0].[a_dig], [t0].[a_score], [t0].[a_rank], [t0].[a_diguser], [t0].[a_buryuser], [t0].[a_viewip], [t0].[a_lastviewdate], [t0].[a_neworimageorvideo], [t0].[class_id], [t0].[class_type], [t0].[class_name], [t0].[class_show_name], [t0].[class_parent_id], [t0].[class_id_path], [t0].[class_name_path], [t0].[class_show_name_path], [t0].[class_depth], [t0].[class_order], [t0].[class_content], [t0].[class_img], [t0].[a_model_name] FROM [dbo].[mvc_content_view] AS [t0] WHERE ([t0].[a_type] = @p0) AND ([t0].[a_id] > @p1) ORDER BY [t0].[a_id] -- @p0: Input BigInt (Size = 0; Prec = 0; Scale = 0) [236] -- @p1: Input BigInt (Size = 0; Prec = 0; Scale = 0) [4276] -- Context: SqlProvider(Sql2008) Model: AttributedMetaModel Build: 3.5.30729.1 SELECT [t0].[a_id], [t0].[a_site], [t0].[a_model], [t0].[a_type], [t0].[a_special], [t0].[a_name], [t0].[a_from], [t0].[a_from_url], [t0].[a_author], [t0].[a_editor], [t0].[a_describe], [t0].[a_content], [t0].[a_create_date], [t0].[a_tag], [t0].[a_hits], [t0].[a_commend], [t0].[a_istop], [t0].[a_isimg], [t0].[a_cacheimg], [t0].[a_imgurls], [t0].[a_imgurl], [t0].[a_ismedia], [t0].[a_mediaurl], [t0].[a_iscomment], [t0].[a_isRecycle], [t0].[a_weight], [t0].[a_weights], [t0].[a_status], [t0].[a_url], [t0].[a_file_path], [t0].[a_contentfile], [t0].[a_comment], [t0].[a_ispass], [t0].[a_bury], [t0].[a_dig], [t0].[a_score], [t0].[a_rank], [t0].[a_diguser], [t0].[a_buryuser], [t0].[a_viewip], [t0].[a_lastviewdate], [t0].[a_neworimageorvideo] FROM [dbo].[mvc_content] AS [t0] WHERE ([t0].[a_id] = @p0) AND ([t0].[a_type] = @p1) -- @p0: Input BigInt (Size = 0; Prec = 0; Scale = 0) [4276] -- @p1: Input BigInt (Size = 0; Prec = 0; Scale = 0) [236] -- Context: SqlProvider(Sql2008) Model: AttributedMetaModel Build: 3.5.30729.1 UPDATE [dbo].[mvc_content] SET [a_hits] = @p19 WHERE ([a_id] = @p0) AND ([a_site] = @p1) AND ([a_model] = @p2) AND ([a_type] = @p3) AND ([a_special] = @p4) AND ([a_name] = @p5) AND ([a_from] = @p6) AND ([a_from_url] IS NULL) AND ([a_author] IS NULL) AND ([a_editor] IS NULL) AND ([a_describe] IS NULL) AND ([a_content] = @p7) AND ([a_create_date] = @p8) AND ([a_tag] = @p9) AND ([a_hits] = @p10) AND (NOT ([a_commend] = 1)) AND (NOT ([a_istop] = 1)) AND (NOT ([a_isimg] = 1)) AND ([a_cacheimg] IS NULL) AND ([a_imgurls] IS NULL) AND ([a_imgurl] = @p11) AND (NOT ([a_ismedia] = 1)) AND ([a_mediaurl] IS NULL) AND (NOT ([a_iscomment] = 1)) AND (NOT ([a_isRecycle] = 1)) AND ([a_weight] = @p12) AND ([a_status] = @p13) AND ([a_url] IS NULL) AND ([a_file_path] IS NULL) AND ([a_contentfile] IS NULL) AND ([a_comment] = @p14) AND ([a_ispass] = @p15) AND ([a_bury] = @p16) AND ([a_dig] = @p17) AND ([a_score] = @p18) AND ([a_diguser] IS NULL) AND ([a_buryuser] IS NULL) AND ([a_viewip] IS NULL) AND ([a_lastviewdate] IS NULL) AND ([a_neworimageorvideo] IS NULL) SELECT [t1].[a_weights], [t1].[a_rank] FROM [dbo].[mvc_content] AS [t1] WHERE ((@@ROWCOUNT) > 0) AND ([t1].[a_id] = @p20) -- @p0: Input BigInt (Size = 0; Prec = 0; Scale = 0) [4276] -- @p1: Input BigInt (Size = 0; Prec = 0; Scale = 0) [197] -- @p2: Input BigInt (Size = 0; Prec = 0; Scale = 0) [24] -- @p3: Input BigInt (Size = 0; Prec = 0; Scale = 0) [236] -- @p4: Input BigInt (Size = 0; Prec = 0; Scale = 0) [0] -- @p5: Input NVarChar (Size = 20; Prec = 0; Scale = 0) [使用速度更快的OLEDB取代ODBC连结] -- @p6: Input NVarChar (Size = 4; Prec = 0; Scale = 0) [1262] -- @p7: Input NVarChar (Size = 1830; Prec = 0; Scale = 0) [{$ad$}仍旧在使用ODBC系统或文件DSN连接数据库吗？请用速度更快的OLEDB提供者技术取代DSN连接数据库，不必再恳求你的ISP（或你的数据库管理员/Web管理员）为你创建系统DSN，也不必因为移动文件而修改配置。

OLEDB处于ODBC层和应用之间。对于ASP页面来说，ADO是OLEDB上面的一种“应用”。ADO调用首先发送给OLEDB，然后才被发送给ODBC层。但是你也可以直接连接到OLEDB层，而且如果你这么做了，你就会看到性能的进一步提升。那么，如何才能直接连接到OLEDB呢？

如果你使用的是SQL Server 7，用下面的代码作为连接串： 　　
strConnString = "DSN='';DRIVER={SQL SERVER};" & _
                "UID=myuid;PWD=mypwd;" & _
                "DATABASE=MyDb;SERVER=MyServer;"

如果你想越过ODBC，通过OLEDB使用SQL Server，使用下面的语法： 　　
strConnString ="Provider=SQLOLEDB.1;Password=mypassword;" & _
               "Persist Security Info=True;User ID=myuid;" & _
               "Initial Catalog=mydbname;" & _
               "Data Source=myserver;Connect Timeout=15"

现在你或许想知道学习这种新的连接方法有什么好处。为什么不使用标准的使用DSN方法呢？按照Wrox在ADO 2.0 Programmer's Reference这本书中的测试结果，使用OLEDB连接和使用DSN连接性能差异如下表：
<table>
<th><td>SQL</td><td>Access</td></th>
<tr><td>项目 OLEDB DSN</td><td>项目 OLEDB DSN</td></tr>
<tr><td>连接时间: 18 82</td><td>连接时间: 62 99</td</tr>
<tr><td>迭代1000个记录的时间： 2900 5400</td><td>迭代1000个记录的时间： 100 950 </td></tr>
</table>

注：上述结果在ADO 2.0 Programmer's Reference这本书的232、233页。时间以毫秒计，迭代1000个记录的时间用服务器端游标计算（使用客户端游标时，OLEDB和DSN记录集迭代的性能差别不大）。

] -- @p8: Input DateTime (Size = 0; Prec = 0; Scale = 0) [2007-12-28 22:03:43] -- @p9: Input NVarChar (Size = 22; Prec = 0; Scale = 0) [使用,速度,OLEDB,取代,ODBC,连结] -- @p10: Input BigInt (Size = 0; Prec = 0; Scale = 0) [1645] -- @p11: Input NVarChar (Size = 0; Prec = 0; Scale = 0) [] -- @p12: Input BigInt (Size = 0; Prec = 0; Scale = 0) [0] -- @p13: Input Int (Size = 0; Prec = 0; Scale = 0) [0] -- @p14: Input BigInt (Size = 0; Prec = 0; Scale = 0) [0] -- @p15: Input Int (Size = 0; Prec = 0; Scale = 0) [0] -- @p16: Input BigInt (Size = 0; Prec = 0; Scale = 0) [0] -- @p17: Input BigInt (Size = 0; Prec = 0; Scale = 0) [0] -- @p18: Input Float (Size = 0; Prec = 0; Scale = 0) [0] -- @p19: Input BigInt (Size = 0; Prec = 0; Scale = 0) [1646] -- @p20: Input BigInt (Size = 0; Prec = 0; Scale = 0) [4276] -- Context: SqlProvider(Sql2008) Model: AttributedMetaModel Build: 3.5.30729.1 SELECT TOP (10) [t0].[a_id], [t0].[a_site], [t0].[a_model], [t0].[a_type], [t0].[a_special], [t0].[a_name], [t0].[a_from], [t0].[a_from_url], [t0].[a_author], [t0].[a_editor], [t0].[a_describe], [t0].[a_content], [t0].[a_create_date], [t0].[a_tag], [t0].[a_hits], [t0].[a_commend], [t0].[a_istop], [t0].[a_isimg], [t0].[a_cacheimg], [t0].[a_imgurls], [t0].[a_imgurl], [t0].[a_ismedia], [t0].[a_mediaurl], [t0].[a_iscomment], [t0].[a_isRecycle], [t0].[a_weight], [t0].[a_weights], [t0].[a_status], [t0].[a_url], [t0].[a_file_path], [t0].[a_contentfile], [t0].[a_comment], [t0].[a_ispass], [t0].[a_bury], [t0].[a_dig], [t0].[a_score], [t0].[a_rank], [t0].[a_diguser], [t0].[a_buryuser], [t0].[a_viewip], [t0].[a_lastviewdate], [t0].[a_neworimageorvideo], [t0].[class_id], [t0].[class_type], [t0].[class_name], [t0].[class_show_name], [t0].[class_parent_id], [t0].[class_id_path], [t0].[class_name_path], [t0].[class_show_name_path], [t0].[class_depth], [t0].[class_order], [t0].[class_content], [t0].[class_img], [t0].[a_model_name] FROM [dbo].[mvc_content_view] AS [t0] WHERE ([t0].[a_type] IN (@p0)) AND (NOT ([t0].[a_isRecycle] = 1)) ORDER BY [t0].[a_id] DESC -- @p0: Input BigInt (Size = 0; Prec = 0; Scale = 0) [236] -- Context: SqlProvider(Sql2008) Model: AttributedMetaModel Build: 3.5.30729.1