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The following table shows how a record in two datasets is merged: dataset.This means that if you try to update the original data source with the target dataset, it might not be able to find the original row to update.
To move a Magento website with its database is one thing, but what if you only want to update a Magento websites' sales and recent customers?
You do this in one of three ways: When you data bind dataset tables to controls on a Windows Form or XAML page, the data binding architecture does all the work for you.
If you're familiar with Table Adapters, you can jump directly to one of these topics: Updating a data source is a two-step process.
Merging datasets is useful when you have a local dataset and you get a second dataset from another application.
It's also useful when you get a second dataset from a component such as an XML web service, or when you need to integrate data from multiple datasets.