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Unfortunately, ADO.NET doesn t provide a native method to write a BLOB in chunks. However, there s still hope because SQL Server s T-SQL supports the UPDATETEXT statement, which can stuff data into a long text or binary field. Using the UPDATETEXT statement isn t exactly simple, though, so I wrapped all the code you need in a reus; able procedure:

A SharePoint Central Administration server and its configuration database needn t reside on the same physical server. To find the location of this database, proceed as follows:

The framework had to handle core architectural services, such as security, caching, report serialization, and so on Do some implementation aspects of our framework look familiar to you In a nutshell, we reinvented Reporting Services with a twist so that it could support multiple reporting providers As you would imagine, the development effort required to implement our homegrown framework wasn t trivial For this reason, before you embark on a similar endeavor, it may make sense to consider other less-involved design patterns that may offer a reasonable compromise between flexibility and simplicity Our advice is to tackle this dilemma from the standpoint of simplicity, as opposed to trying to implement full-blown flexible solutions A famous novelist was once asked how he knew when his novel was complete, to which he answered, When there is nothing left to take out.

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1 Open the Home Page of the Central Administration virtual server. If you don t know your Central Administration server s URL or port number, follow this procedure: 1.1 Log on to the physical server. 1.2 Open IIS Manager. 1.3 Right-click the SharePoint Central Administration virtual server and choose Properties. 1.4 Click the Web site tab. This will display the server s IP address and port number. 2 If a SharePoint Portal Server Central Administration page appears, click the Windows SharePoint Services link that appears at the left of the page, under Links To Related Administration Home Pages. 3 Under Server Configuration, click Set Configuration Database Server. 4 When the Set Configuration Database Server page shown in Figure 14-1 appears, the contents of the Database Server box and the SQL Server Database Name box will identify the configuration database. Write down these values.

Sub FileToBlob(ByVal cn As SqlConnection, ByVal tableName As String, _ ByVal blobField As String, ByVal keyField As String, _ ByVal keyValue As Object, ByVal filename As String) Get the value of the pointer to the BLOB field. Dim sql As String = String.Format( SELECT TEXTPTR({0}) FROM {1} WHERE {2}=@id", _

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We would suggest that you adopt this design paradigm when architecting your enterprise reporting solution as well..

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blobField, tableName, keyField) Dim cmd As New SqlCommand(sql, cn) cmd.Parameters.Add( @id", keyValue) The pointer is actually a byte array, but we don t really care here. Dim pointer As Object = cmd.ExecuteScalar() cmd.Dispose() Open the file, throw if not found.

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Figure 14-1. This Web page specifies and displays the configuration database for a Windows SharePoint Services server.

Dim stream As New FileStream(filename, FileMode.Open, FileAccess.Read)

Evaluating enterprise reporting To better understand why we advocate simplicity, let s look at some tradeoffs that you will need to consider as you design a custom enterprise reporting solution. Increased complexity The report request may need to traverse several layers before reaching the report provider. For example, once the client initiates the report request, it may need to go to be validated by the application business layer. Next, the business layer will submit the request to the communication layer of the reporting framework. Here, we will need to validate the request again, parse it, invoke the report adapter, and so on. Compare this invocation pattern with directly accessing the Report Server by URL in the case of Reporting Services, and you will start to understand the price of flexibility.

To find out which content databases the site is using, you need to inspect the configuration of each SharePoint virtual server that uses the given configuration database. Here s the procedure:

sql = String.Format( UPDATETEXT {0}.{1} @pointer @offset 0 @bytes", tableName, _

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