Performance and Scalability Optimizations
If your organization is like most others, the ADO.NET applications you'll develop will get their data from a relational database, such as SQL Server or Oracle. As a result, the performance and scalability of your applications depends not only on the efficiency of code you write, but also (and more importantly) on the techniques you employ to actually retrieve and maintain the data. This section details those techniques enumerated in several categories, starting with those you can apply closest to the data and moving outward to the managed code.
Query Techniques
This set of techniques can be applied to the actual statements executed against the data store and can be used to increase the raw performance ...
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