code to generate barcode in vb.net Part VII in C#.NET

Painting UPC - 13 in C#.NET Part VII

Part VII
Encoding EAN13 In C#
Using Barcode generator for VS .NET Control to generate, create EAN13 image in .NET framework applications.
www.OnBarcode.com
EAN / UCC - 13 Reader In C#
Using Barcode recognizer for .NET framework Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
Performance Tuning and Troubleshooting
Barcode Generator In C#
Using Barcode maker for .NET framework Control to generate, create barcode image in Visual Studio .NET applications.
www.OnBarcode.com
Barcode Reader In C#.NET
Using Barcode decoder for .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
Figure 32-5 The Disconnect Users In The Database When Restoring Backups check box.
UPC - 13 Drawer In .NET Framework
Using Barcode generation for ASP.NET Control to generate, create EAN-13 Supplement 5 image in ASP.NET applications.
www.OnBarcode.com
UPC - 13 Creation In .NET Framework
Using Barcode drawer for Visual Studio .NET Control to generate, create EAN13 image in .NET applications.
www.OnBarcode.com
You will have to decide upon an appropriate schedule for shipping the logs, and how to respond to connected users based on your business requirements, acceptable degree of latency, and operational behaviour. Note
Print UPC - 13 In VB.NET
Using Barcode printer for .NET framework Control to generate, create GS1 - 13 image in Visual Studio .NET applications.
www.OnBarcode.com
EAN-13 Creation In Visual C#.NET
Using Barcode drawer for VS .NET Control to generate, create EAN / UCC - 13 image in Visual Studio .NET applications.
www.OnBarcode.com
Don't forget that the restore jobs can have a different frequency than the transaction log backups and shipping jobs. The transaction logs accumulate until they are ready to be loaded.
Drawing 2D Barcode In Visual C#.NET
Using Barcode creation for Visual Studio .NET Control to generate, create Matrix 2D Barcode image in .NET framework applications.
www.OnBarcode.com
Generating Code 128 Code Set B In C#
Using Barcode encoder for .NET Control to generate, create Code128 image in .NET framework applications.
www.OnBarcode.com
A log shipping solution can be particularly effective at scaling out your reporting requirements to different departments. Each department has its own version of a secondary database on a SQL Server instance against which they can report. One department s queries do not adversely affect another department s query performance. You have also provided a layer of fault tolerance, so if one department s secondary database crashes other departments will still be able to report with their secondary databases. Alternatively, for a true fault tolerance layer at the secondary database level, you can use Microsoft s Network Load Balancing (NLB) technology to provide both fault tolerance and load balancing. NLB allows client applications to connect to a single, virtualized IP address configured on the NLB cluster. The NLB cluster is responsible for automatically redirecting the client application to one of the physical IP addresses of the secondary databases that make up the NLB cluster, as shown in Figure 32-6. An additional benefit of implementing an NLB cluster is that it allows you to take your secondary
Draw QR In C#
Using Barcode maker for Visual Studio .NET Control to generate, create QR Code ISO/IEC18004 image in Visual Studio .NET applications.
www.OnBarcode.com
Paint RoyalMail4SCC In C#
Using Barcode generator for .NET framework Control to generate, create British Royal Mail 4-State Customer Code image in Visual Studio .NET applications.
www.OnBarcode.com
32
Creating Data Matrix ECC200 In Java
Using Barcode drawer for Java Control to generate, create Data Matrix image in Java applications.
www.OnBarcode.com
GS1 128 Generation In Java
Using Barcode drawer for Java Control to generate, create UCC - 12 image in Java applications.
www.OnBarcode.com
Microsoft SQL Server 2005 Scalability Options
Recognize QR In Java
Using Barcode reader for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
GTIN - 128 Maker In None
Using Barcode creation for Software Control to generate, create UCC - 12 image in Software applications.
www.OnBarcode.com
SQL Server instances offline to perform maintenance tasks without having to a reconfigure client applications.
PDF 417 Reader In None
Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
Making EAN128 In None
Using Barcode drawer for Online Control to generate, create USS-128 image in Online applications.
www.OnBarcode.com
IP3 Principal server IP4
EAN / UCC - 14 Drawer In None
Using Barcode creation for Office Excel Control to generate, create UCC - 12 image in Microsoft Excel applications.
www.OnBarcode.com
Painting Code 128B In None
Using Barcode printer for Microsoft Excel Control to generate, create Code128 image in Excel applications.
www.OnBarcode.com
Virtual IP
NLB cluster
Figure 32-6 A log shipping solution using an NLB cluster.
Note
A single NLB cluster can have up to 32 servers and can be scaled beyond this limit by using a round-robin domain name service (DNS) between multiple NLB clusters.
Replication
SQL Server s replication technology has proven to be powerful, reliable, and flexible during the last decade, representing a great way of scaling out your database solution. 20, Replication, covers the fundamentals of replication and the different replication types for configuring, managing, and tuning replication. When considering SQL Server 2005 s replication technology, make sure you understand how the technology works to determine the appropriate replication topology for your scale-out solution. The two main considerations are the latency that your database solution can afford, whether database users will need to modify data, and, if so, whether you need to deal with update conflicts.
Part VII
Performance Tuning and Troubleshooting
Environmental and operational factors influence the performance of your replication topology, so it is a good idea to set up a testbed environment to see how it performs within your organization and set correct expectations for all stakeholders.
Merge Replication
With merge replication, data modifications are kept tracked via triggers on both the publisher and the subscriber. When the publisher and subscriber try to synchronize, they send each list of modified rows and attempt to merge the changes to get a consistent view of the data. In this type of replication, data modification conflicts can occur, so you need to configure some form of conflict resolution. Merge replication is typically used between a SQL Server instance and a client computer that is not constantly connected to the network, such as in the case of traveling sales staff. When they are back in the office (or connect remotely potentially), they can synchronise their new orders and customers back with the publisher, while the publisher sends them the latest products, pricelists, and any other updated data. However, you can still use merge replication as a means on scaling out your database solution to multiple SQL Server 2005 instances. Although you could use merge replication rather than transaction replication when you have a slower network infrastructure between the publisher and subscribers, the main reason for using merge replication as a scale-out solution is when you need to modify data at all SQL Server 2005 instances. When designing a merge replication topology, define the conflict resolution rules, as discussed in 20, as separate database users can modify the same data that is located on their instance of the database. However, merge replication works best where data modifications tend to be mutually exclusive. Figure 32-7 shows an example of merge replication being used to scale out a sales database to multiple offices within Australia. The Brisbane, Melbourne, Perth, and Darwin offices all merge replicate their new orders and customers with the head office in Sydney. Sydney then merge replicates this information to all of the offices. Because Sydney is responsible for the ordering, delivery, and consignment of requested products from overseas, it maintains the product catalog and the status of overseas orders, which it merge replicates with the various offices. This sort of a scale-out solution does not need to work in real-time, so merge replication is the perfect technology.
Copyright © OnBarcode.com . All rights reserved.