DEVELOPER S GUIDE AND REFERENCES

Set rs = cmd.Execute DisplayForwardGrid rs, Grid rs.Close Set rs = NothingEnd SubIn the beginning of this subroutine, a new ADO Command object name cmd is created, along with an ADO Recordset object named rs. The Command object is used to create and execute the prepared SQL statement, while t[r]

can use the Notification Services node in the SQL Server Management Studio or the nscontrol command-line utility. These tools create the Notification Services instance and database, if required.140 Microsoft SQL Server 2005 Developer’s GuideBuilding the Notifi cation Subscription[r]

a DataReader object. The DataReader essentially provides fast forward–only cursor style of data access that operates in a connected fashion. While the DataSet provides the basis for disconnected Web applications, the DataReader enables the fast connected style of data access needed by desktop and[r]

one or more event batches arrived. Scheduled rules run in any quantum that has scheduled subscriptions expected to be processed.You can see the screen that the example Notification Services client application uses to create Notification Services events in Figure 5-8.On the Event tab, the user can en[r]

Building the Notifi cation Services ApplicationAfter the required XML and T-SQL application code has been created, you’re ready to build the Notification Services application. Notification Services applications can be created interactively using the SQL Server Management Studio, or they can be[r]

messages. If the stored procedure encounters an error, it can throw an exception and be automatically recycled.Periodically, the SQL Server Service Broker checks the status of the input queue to find out if the stored procedure is keeping up with the incoming messages on the input queue. If t[r]

the values in the child table’s rows to default values; or throw an exception.UniqueConstraintThe UniqueConstraint class is located in the .NET Framework at SystemData.UniqueConstraint. The UniqueConstraint class ensures that all values entered into a DataColumn object have a unique value.182[r]

a SQL Server Service Broker dialog. It is designed to provide one-time-only, in-order delivery of messages, handling the sending and acknowledgment of messages. It also provides symmetric failure handling where both end nodes are notified of any message delivery failures. In addition, the Dia[r]

SQLCRL debugger from Visual Studio causes all SQLCLR threads to stop, which prevents other CLR objects from running..NET Database Object SecurityNo discussion of the new CLR features would be complete without a description of the security issues associated with using .NET assemblies and the S[r]

Else Return Nothing End If End Function Public ReadOnly Property IsNull() As Boolean _ Implements INullable.IsNull Get If m_value.IsNull = True Then Return True Else Return False End If End Get End Property Public Shared ReadOnly Property Null() As Gender Get Dim h As Gender = New Gender h.m_Null =[r]

92 Microsoft SQL Server 2005 Developer’s GuideVisual Studio uses the SQL Server Function project template to create a starter project that includes the reference to the SQL Server .NET Data Provider and a basic function wrapper for your source code. It’s up to you to fill[r]

T-SQL CreateFigure 3-2 Creating CLR database objects82 Microsoft SQL Server 2005 Developer’s GuideThe CREATE ASSEMBLY command takes a parameter that contains the path to the DLL that will be loaded into SQL Server. This can be a local path, but more often it will be a path to a network[r]

Min Pool Size Specifies the minimum number of connections maintained in the pool. Pooling When this value is ‘True’, connection pooling is automatically enabled. ‘False’ allows you to turn off connection pooling.Table 6-2 Pooling-Related Connection String Keywords190 Microsoft SQL Server 2005 Dev[r]

15 Shipping and Receiving Inventory Management16 Executive Executive General and Administration(16 row(s) affected)Using SubqueriesA subquery is a query that’s nested inside of another T-SQL query. Subqueries can be nested within SELECT, INSERT, UPDATE, or DELETE statemen[r]

The Command object is used to issue commands and parameterized SQL statements. Command objects can be used to call stored procedures and execute SQL action statements, as well as SQL queries that return recordsets. Like the ADO Recordset object, the Command object can either use an act[r]

readability of the code. Next, the optional parameter is tested to determine if it was supplied. If the parameter is missing, then the default Recordset processing direction is set to forward.The section of code immediately following these variables sets up the grid. This section is similar to the D[r]

Private Sub ForwardOnlyRecordset(cn As ADODB.Connection) Dim rs As New ADODB.Recordset ' Associate the Recordset with the open connection object rs.ActiveConnection = cn 'Use the open method rs.Open "Select * From Sales.SalesPerson", , , , adCmdText 'Display the results in a grid DisplayForwardGrid[r]

provider for ODBC. Because the OLE DB provider for SQL Server doesn’t use ODBC, there’s no requirement for using a data source or an existing ODBC driver. However, you do need to specify the name of the OLE DB provider.The following example illustrates how to make a connection to SQL Server u[r]

typed and untyped XML data values as well as how to use the FOR XML statement, how to bulk load XML data, and how to create HTTP and SOAP endpoints for XML Web Services.This page intentionally left blank 255CHAPTER8Developing Database Applications with ADOIN THIS CHAPTERAn Overv[r]

<Last_Name>Achong</Last_Name> </Employee></row><row> <Employee> <Title>Ms.</Title> <First_Name>Catherine</First_Name> <Last_Name>Abel</Last[r]