How can you make a data reader close connection automatically?

Read the following statements: OleDbDataAdapter oOrderDetailsDataAdapter; OleDbCommandBuilder oOrderDetailsCmdBuilder = New OleDbCommandBuilder(oOrderDetailsDataAdapter); oOrderDetailsDataAdapter.FillSchema(oDS, SchemaType.Source); What is wrong in this code?

Which statements are correct? (a)SQL statements are generally faster than stored procedures (b)The database engine works out the execution plan for SQL statements at run time

Asynchronous execution is supported in ADO.NET 2.0 for ExecuteReader, ExecuteScalar, and ExecuteNonQuery.

In .Net application, you have to update 40 records together in the update query. Previous versions of ADO.NET would be making 40 calls to database. Which parameter is set to 40 with version 2.0?

Read the following statement: DataTable.Merge (DataTable, Boolean) What is the boolean parameter?

Which statement with regard to DataSet is correct?

Which statement is incorrect with regard to a CommandBuilder object?

Which one is not a member of the CommandType enumeration?

Which statement is incorrect with regard to ADO?

Which are used for database connections between SQL Server and ASP.NET?