Summary

for RuBoard

Data readers provide an efficient means to access data from a data store using a streamed programming model. The various methods provided by the data reader enable you to get the data one column at a time or as an array. Some providers even implement provider-specific type information to make the access more efficient. You can also use a data reader polymorphically in order to promote code reuse and separation of the tiers in a multi-tiered application. Data readers also expose some advanced functionality such as retrieving schema information, mixing retrieval and data modification statements, and working with OLE DB hierarchical result sets.

Now that you're fully familiar with the streamed programming model, tomorrow we'll once again explore the cached model by showing the techniques used to work with data adapters.

for RuBoard


Sams Teach Yourself Ado. Net in 21 Days
Sams Teach Yourself ADO.NET in 21 Days
ISBN: 0672323869
EAN: 2147483647
Year: 2002
Pages: 158
Authors: Dan Fox

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