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On theorems of berge and fournier,ost commonly used type of data source for this purpose. In this chapter, you’ll take a closer look at how relational databases actually work. You’ll see how data is organized inside a database, and to make sure you understand it, you’ll build your own sample database from scratch for use in Chapters狼群 发表于 2025-3-25 11:20:16
Dirhypergraphs: Basic Concepts,e text files, Extensible Markup Language (XML) files, spreadsheets, and the Active Directory store, not to mention . databases as data sources. Chapter 2 then moved on to talk about relational databases, and by the end of the chapter you had fundamentally the same database in three different flavorsInsufficient 发表于 2025-3-25 14:32:45
Constrained Sets of Involutions,a scalar value, and a DataReader object. You also saw how to deal with scalars and confirmations. In this chapter, you’ll continue your look at the third step in driving a page with data: handling the data correctly once it has been returned from the database. You have a large number of options forflaggy 发表于 2025-3-25 18:31:00
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Subnormality and Thin Residues,. we introduced the Command object and showed how to use the ExecuteReader() method to execute SELECT queries against the database to return the results. As you know from Chapter 2, the SELECT query isn’t the only type of query you can execute. At the end of Chapter 4, you saw that you can use two further methods to execute these types of queries.