我需要一个小组来方便地处理所有数据库。 例如,使用ado和ql,我们有SqlConnection,但不是通用的,对于另一个数据库类型,你必须使用其他类别。
我希望数据库Connection类型的物体能够轻易地让我与各类数据库连接,让我就数据库提出询问。
我需要一个小组来方便地处理所有数据库。 例如,使用ado和ql,我们有SqlConnection,但不是通用的,对于另一个数据库类型,你必须使用其他类别。
我希望数据库Connection类型的物体能够轻易地让我与各类数据库连接,让我就数据库提出询问。
OleDB can work. But this has a performance hit.
而是与“IDb”接口。 我认为,它们属于名称空间系统。 数据。 利用这些接口使两个世界都处于最佳地位。 你的代码是独立的数据库,但仍有数据库特定数据提供人的业绩。 Idb接口还使OleDB能够在必要时使用。 实际用户将配置在您的网页上。
ALWAYS(总是)使用IDb接口。
目标导向方案101。 连接方案,而不是执行。
OleDbConnection in the System.Data.OleDb
namesapce
我建议你使用一个数据存取目标模式的抽象工厂。 这应符合你们的需要。 见。 全面研究模式。 虽然网站用java语说话,但模型也可在c#中使用。
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