.下列ASP.NET 语句()正确地创建了一个与SQL Server 2000数据库的连接。
A) SqlConnection con1 = new Connection(“Data Source = localhost; Integrated Security =
SSPI; Initial Catalog = myDB”);
B) SqlConnection con1 = new SqlConnection(“Data Source = localhost; Integrated Security =
SSPI; Initial Catalog = myDB”);
C) SqlConnection con1 = new SqlConnection(Data Source = localhost; Integrated Security =
SSPI; Initial Catalog = myDB);
D) SqlConnection con1 = new OleDbConnection(“Data Source = localhost; Integrated
Security = SSPI; Initial Catalog = myDB”);
A.投影操作
B.连接
C.选择
D.合并
A.业务不中断,自动完成水平拆分、平滑扩容
B.兼容SQL语法
C.可承受PB级数据量,百万级并发量、十倍于单机数据库连接
D.集群高可用,秒级故障自动恢复