C#连接Access、SQL Server、Oracle、MySQL、DB2和SyBase六种不同数据库的程序源码和需要注意的点-C# Connection Access, SQL Server, Oracle, MySQL, DB2, and SyBase six different database programs and the need to pay attention to point source

sql\oracle等数据库万能连接与操作-sql \ oracle database, such as universal connectivity and operation

一个3层结构的例子，分别可连接mdb，sqlserver，oracle-An example of layer 3, respectively, to connect mdb, sqlserver, oracle

c#访问数据的封装类,支持access,oracle,sql sever等大部分数据库-access class， dev by c#